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2.35k
| offset_a
int64 -14,827
666,262,453B
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635M
⌀ | cross_references
listlengths 1
128
⌀ | former_ids
listlengths 1
3
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231
⌀ | timestamp
timestamp[us]date 1999-12-11 03:00:00
2025-07-19 00:40:46
| filename
stringlengths 29
29
| hash
stringlengths 32
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---|---|---|---|---|---|---|---|---|---|---|---|---|
A363801 | Expansion of Product_{k>0} (1 - x^(7*k-4)) * (1 - x^(7*k-3)) * (1 - x^(7*k)). | [
"1",
"0",
"0",
"-1",
"-1",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"1",
"0",
"1",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"-1",
"0",
"0",
"-1",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"1",
"0",
"0",
"0",
"1",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"-1",
"0",
"0",
"0",
"0",
"-1",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0",
"0"
]
| [
"sign"
]
| 11 | 0 | null | [
"A022264",
"A022265",
"A232714",
"A346798",
"A363800",
"A363801",
"A363804"
]
| null | Seiichi Manyama, Jun 23 2023 | 2023-06-23T10:31:52 | oeisdata/seq/A363/A363801.seq | 1d85a534ed14afa615b6038b94cc0a1f |
A363802 | Numbers whose digits can be interposed with one or more of the arithmetic operators +, -, *, /, with no parentheses or concatenation, to yield 10 as the result. | [
"19",
"25",
"28",
"37",
"46",
"52",
"55",
"64",
"73",
"82",
"91",
"109",
"118",
"119",
"125",
"127",
"128",
"133",
"136",
"137",
"145",
"146",
"152",
"154",
"155",
"163",
"164",
"172",
"173",
"181",
"182",
"190",
"191",
"208",
"215",
"217",
"218",
"219",
"224",
"226",
"229",
"234",
"235",
"242",
"244",
"250",
"251",
"253",
"262",
"271",
"274",
"280",
"281",
"286",
"291",
"298",
"307"
]
| [
"nonn",
"base"
]
| 47 | 1 | 1 | [
"A052224",
"A342804",
"A357272",
"A363802"
]
| null | Evan Gillard, Jun 23 2023 | 2023-09-02T22:38:17 | oeisdata/seq/A363/A363802.seq | fb6045ec87ed77d54360434f1825c6ce |
A363803 | a(n) = Sum_{d|n, d == 0, 2, or 5 mod 7} d. | [
"0",
"2",
"0",
"2",
"5",
"2",
"7",
"2",
"9",
"7",
"0",
"14",
"0",
"23",
"5",
"18",
"0",
"11",
"19",
"7",
"28",
"2",
"23",
"14",
"5",
"28",
"9",
"51",
"0",
"37",
"0",
"18",
"33",
"2",
"47",
"23",
"37",
"21",
"0",
"47",
"0",
"86",
"0",
"46",
"14",
"25",
"47",
"30",
"56",
"7",
"51",
"28",
"0",
"65",
"5",
"107",
"19",
"60",
"0",
"49",
"61",
"2",
"100",
"18",
"70",
"35",
"0",
"70",
"23",
"133",
"0",
"95",
"0",
"39",
"80",
"21",
"84",
"28",
"79",
"63",
"9",
"84",
"0"
]
| [
"nonn",
"easy"
]
| 13 | 1 | 2 | [
"A284363",
"A284443",
"A284446",
"A363800",
"A363803",
"A363804"
]
| null | Seiichi Manyama, Jun 23 2023 | 2023-06-23T10:32:05 | oeisdata/seq/A363/A363803.seq | bcb6f321e15f0f602099504bddb33d75 |
A363804 | a(n) = Sum_{d|n, d == 0, 3, or 4 mod 7} d. | [
"0",
"0",
"3",
"4",
"0",
"3",
"7",
"4",
"3",
"10",
"11",
"7",
"0",
"21",
"3",
"4",
"17",
"21",
"0",
"14",
"31",
"11",
"0",
"31",
"25",
"0",
"3",
"53",
"0",
"13",
"31",
"36",
"14",
"17",
"42",
"25",
"0",
"38",
"42",
"14",
"0",
"87",
"0",
"15",
"48",
"46",
"0",
"31",
"56",
"35",
"20",
"56",
"53",
"21",
"11",
"109",
"3",
"0",
"59",
"77",
"0",
"31",
"94",
"36",
"0",
"80",
"67",
"21",
"3",
"136",
"0",
"49",
"73",
"74",
"28",
"42",
"95",
"42",
"0",
"94",
"84",
"0",
"0"
]
| [
"nonn",
"easy"
]
| 17 | 1 | 3 | [
"A284363",
"A284444",
"A284445",
"A363801",
"A363803",
"A363804"
]
| null | Seiichi Manyama, Jun 23 2023 | 2024-09-11T17:23:17 | oeisdata/seq/A363/A363804.seq | 7538ce82d45b2b7ec65b42d6d33630aa |
A363805 | Number of divisors of n of the form 7*k + 3. | [
"0",
"0",
"1",
"0",
"0",
"1",
"0",
"0",
"1",
"1",
"0",
"1",
"0",
"0",
"1",
"0",
"1",
"1",
"0",
"1",
"1",
"0",
"0",
"2",
"0",
"0",
"1",
"0",
"0",
"2",
"1",
"0",
"1",
"1",
"0",
"1",
"0",
"1",
"1",
"1",
"0",
"1",
"0",
"0",
"2",
"0",
"0",
"2",
"0",
"1",
"2",
"1",
"0",
"1",
"0",
"0",
"1",
"0",
"1",
"2",
"0",
"1",
"1",
"0",
"0",
"2",
"0",
"1",
"1",
"1",
"0",
"2",
"1",
"0",
"1",
"1",
"0",
"1",
"0",
"2",
"1",
"0",
"0",
"1",
"1",
"0",
"2",
"0",
"0",
"3",
"0",
"0",
"2",
"1",
"0",
"2",
"0",
"0",
"1"
]
| [
"nonn",
"easy"
]
| 23 | 1 | 24 | [
"A001620",
"A001842",
"A001878",
"A016630",
"A279061",
"A284444",
"A354629",
"A363795",
"A363805",
"A363806",
"A363807",
"A363808"
]
| null | Seiichi Manyama, Jun 23 2023 | 2023-11-25T04:28:26 | oeisdata/seq/A363/A363805.seq | 6b637f42b2048c6104fa0464acf08084 |
A363806 | Number of divisors of n of the form 7*k + 4. | [
"0",
"0",
"0",
"1",
"0",
"0",
"0",
"1",
"0",
"0",
"1",
"1",
"0",
"0",
"0",
"1",
"0",
"1",
"0",
"1",
"0",
"1",
"0",
"1",
"1",
"0",
"0",
"1",
"0",
"0",
"0",
"2",
"1",
"0",
"0",
"2",
"0",
"0",
"1",
"1",
"0",
"0",
"0",
"2",
"0",
"1",
"0",
"1",
"0",
"1",
"0",
"1",
"1",
"1",
"1",
"1",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"2",
"0",
"1",
"1",
"1",
"0",
"0",
"0",
"2",
"0",
"1",
"1",
"1",
"1",
"1",
"0",
"1",
"1",
"0",
"0",
"1",
"0",
"0",
"0",
"3",
"0",
"1",
"0",
"2",
"0",
"0",
"1",
"2",
"0",
"0",
"1",
"2",
"0"
]
| [
"nonn",
"easy"
]
| 20 | 1 | 32 | [
"A001620",
"A016630",
"A279061",
"A284445",
"A354630",
"A363795",
"A363805",
"A363806",
"A363807",
"A363808"
]
| null | Seiichi Manyama, Jun 23 2023 | 2023-11-25T04:28:48 | oeisdata/seq/A363/A363806.seq | 7e95c118c4ebb482494fb9e19b961d86 |
A363807 | Number of divisors of n of the form 7*k + 5. | [
"0",
"0",
"0",
"0",
"1",
"0",
"0",
"0",
"0",
"1",
"0",
"1",
"0",
"0",
"1",
"0",
"0",
"0",
"1",
"1",
"0",
"0",
"0",
"1",
"1",
"1",
"0",
"0",
"0",
"1",
"0",
"0",
"1",
"0",
"1",
"1",
"0",
"1",
"0",
"2",
"0",
"0",
"0",
"0",
"1",
"0",
"1",
"1",
"0",
"1",
"0",
"1",
"0",
"1",
"1",
"0",
"1",
"0",
"0",
"2",
"1",
"0",
"0",
"0",
"1",
"1",
"0",
"1",
"0",
"1",
"0",
"1",
"0",
"0",
"2",
"1",
"0",
"1",
"0",
"2",
"0",
"1",
"0",
"1",
"1",
"0",
"0",
"0",
"1",
"1",
"0",
"0",
"0",
"1",
"2",
"2",
"0",
"0",
"1",
"1"
]
| [
"nonn",
"easy"
]
| 21 | 1 | 40 | [
"A001620",
"A016630",
"A279061",
"A284446",
"A319995",
"A354631",
"A363795",
"A363805",
"A363806",
"A363807",
"A363808"
]
| null | Seiichi Manyama, Jun 23 2023 | 2023-11-25T04:29:11 | oeisdata/seq/A363/A363807.seq | a02a66646ce3e9430a2acb15cb66ade1 |
A363808 | Number of divisors of n of the form 7*k + 6. | [
"0",
"0",
"0",
"0",
"0",
"1",
"0",
"0",
"0",
"0",
"0",
"1",
"1",
"0",
"0",
"0",
"0",
"1",
"0",
"1",
"0",
"0",
"0",
"1",
"0",
"1",
"1",
"0",
"0",
"1",
"0",
"0",
"0",
"1",
"0",
"1",
"0",
"0",
"1",
"1",
"1",
"1",
"0",
"0",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"1",
"0",
"2",
"1",
"0",
"0",
"0",
"0",
"2",
"0",
"1",
"0",
"0",
"1",
"1",
"0",
"1",
"1",
"0",
"0",
"1",
"0",
"0",
"0",
"1",
"0",
"2",
"0",
"1",
"1",
"1",
"1",
"1",
"0",
"0",
"0",
"0",
"0",
"2",
"1",
"0",
"0"
]
| [
"nonn",
"easy"
]
| 21 | 1 | 48 | [
"A001620",
"A016630",
"A279061",
"A284105",
"A354632",
"A363795",
"A363805",
"A363806",
"A363807",
"A363808"
]
| null | Seiichi Manyama, Jun 23 2023 | 2023-11-25T04:29:45 | oeisdata/seq/A363/A363808.seq | f5d5b9b72b9273033501dc83cc750f16 |
A363809 | Number of permutations of [n] that avoid the patterns 2-41-3, 3-14-2, and 2-1-3-5-4. | [
"1",
"1",
"2",
"6",
"22",
"89",
"378",
"1647",
"7286",
"32574",
"146866",
"667088",
"3050619",
"14039075",
"64992280",
"302546718",
"1415691181",
"6656285609",
"31436228056",
"149079962872",
"709680131574",
"3390269807364",
"16248661836019",
"78109838535141",
"376531187219762",
"1819760165454501"
]
| [
"nonn"
]
| 14 | 0 | 3 | [
"A006012",
"A006318",
"A033321",
"A078482",
"A106228",
"A363809",
"A363810",
"A363811",
"A363812",
"A363813"
]
| null | Andrei Asinowski, Jun 23 2023 | 2024-01-16T17:31:57 | oeisdata/seq/A363/A363809.seq | bd5e6408ec90d702d17a40057c4be3ee |
A363810 | Number of permutations of [n] that avoid the patterns 2-41-3, 3-14-2, 2-14-3, and 4-5-3-1-2. | [
"1",
"1",
"2",
"6",
"21",
"79",
"306",
"1196",
"4681",
"18308",
"71564",
"279820",
"1095533",
"4298463",
"16913428",
"66769536",
"264526329",
"1051845461",
"4197832133",
"16813161765",
"67571221016",
"272448598737",
"1101876945673",
"4469106749281",
"18174503562880",
"74093063050412",
"302753929958872"
]
| [
"nonn"
]
| 18 | 0 | 3 | [
"A006012",
"A006318",
"A033321",
"A078482",
"A106228",
"A363809",
"A363810",
"A363811",
"A363812",
"A363813"
]
| null | Andrei Asinowski, Jun 23 2023 | 2024-01-16T17:20:51 | oeisdata/seq/A363/A363810.seq | d3418919dac86de1db6805a761d8528e |
A363811 | Number of permutations of [n] that avoid the patterns 2-41-3, 3-14-2, 2-1-3-5-4, and 4-5-3-1-2. | [
"1",
"1",
"2",
"6",
"22",
"88",
"362",
"1488",
"6034",
"24024",
"93830",
"359824",
"1357088",
"5043260",
"18501562",
"67120024",
"241169322",
"859450004",
"3041415520",
"10699090888",
"37448249502",
"130518538696",
"453276141238",
"1569476495000",
"5420784841936",
"18683861676756",
"64286814548706"
]
| [
"nonn",
"easy"
]
| 21 | 0 | 3 | [
"A006012",
"A006318",
"A033321",
"A078482",
"A106228",
"A363809",
"A363810",
"A363811",
"A363812",
"A363813"
]
| null | Andrei Asinowski, Jun 23 2023 | 2024-01-16T17:31:49 | oeisdata/seq/A363/A363811.seq | 7e085bd7819e2e9b8af6955b9d2ee19d |
A363812 | Number of permutations of [n] that avoid the patterns 2-41-3, 3-14-2, 2-1-4-3, and 3-41-2. | [
"1",
"1",
"2",
"6",
"20",
"69",
"243",
"870",
"3159",
"11611",
"43130",
"161691",
"611065",
"2325739",
"8907360",
"34304298",
"132770564",
"516164832",
"2014739748",
"7892775473",
"31022627947",
"122304167437",
"483513636064",
"1916394053725",
"7613498804405",
"30313164090695"
]
| [
"nonn",
"easy"
]
| 20 | 0 | 3 | [
"A006012",
"A006318",
"A033321",
"A078482",
"A106228",
"A363809",
"A363810",
"A363811",
"A363812",
"A363813"
]
| null | Andrei Asinowski, Jun 23 2023 | 2024-01-16T17:31:53 | oeisdata/seq/A363/A363812.seq | c4fca194069c398add40398f5a6d998c |
A363813 | Number of permutations of [n] that avoid the patterns 2-41-3, 3-14-2, 2-1-4-3, and 4-5-3-1-2. | [
"1",
"1",
"2",
"6",
"21",
"78",
"295",
"1114",
"4166",
"15390",
"56167",
"202738",
"724813",
"2570276",
"9052494",
"31702340",
"110503497",
"383691578",
"1328039043",
"4584708230",
"15793983638",
"54315199642",
"186526735307",
"639831906594",
"2192754259993",
"7509139583560",
"25699765092254",
"87913948206096"
]
| [
"nonn",
"easy"
]
| 21 | 0 | 3 | [
"A006012",
"A006318",
"A033321",
"A078482",
"A106228",
"A363809",
"A363810",
"A363811",
"A363812",
"A363813"
]
| null | Andrei Asinowski, Jun 23 2023 | 2024-01-16T17:21:03 | oeisdata/seq/A363/A363813.seq | c366b616bf7426717dffd86c9d183409 |
A363814 | Intersection of A126706 and A055932. | [
"12",
"18",
"24",
"36",
"48",
"54",
"60",
"72",
"90",
"96",
"108",
"120",
"144",
"150",
"162",
"180",
"192",
"216",
"240",
"270",
"288",
"300",
"324",
"360",
"384",
"420",
"432",
"450",
"480",
"486",
"540",
"576",
"600",
"630",
"648",
"720",
"750",
"768",
"810",
"840",
"864",
"900",
"960",
"972",
"1050",
"1080",
"1152",
"1200",
"1260",
"1296",
"1350",
"1440",
"1458"
]
| [
"nonn",
"easy"
]
| 22 | 1 | 1 | [
"A002110",
"A003586",
"A003592",
"A003593",
"A007947",
"A013929",
"A024619",
"A055932",
"A056808",
"A126706",
"A363814",
"A364710"
]
| null | Michael De Vlieger, Dec 18 2023 | 2024-02-01T01:24:30 | oeisdata/seq/A363/A363814.seq | 7c4473e2879d9d551023ba3e98621ed9 |
A363815 | Number of minors in the n X n knight graph. | [
"1",
"4",
"100",
"2760466"
]
| [
"nonn",
"more",
"hard"
]
| 8 | 1 | 2 | null | null | Eric W. Weisstein, Oct 18 2023 | 2025-02-16T08:34:05 | oeisdata/seq/A363/A363815.seq | 0530151f0105bb0334da6cf20b2db028 |
A363816 | G.f. satisfies A(x) = (1 + x/A(x))/(1 - x)^2. | [
"1",
"3",
"2",
"8",
"-9",
"62",
"-230",
"1054",
"-4753",
"22208",
"-105419",
"508396",
"-2482284",
"12248430",
"-60980860",
"305955372",
"-1545397447",
"7852100312",
"-40105277621",
"205798130624",
"-1060467961487",
"5485199090834",
"-28469067353663",
"148220323891484",
"-773892318396664",
"4051261817405034"
]
| [
"sign"
]
| 28 | 0 | 2 | [
"A162477",
"A363816",
"A363817",
"A363818",
"A364629",
"A364630",
"A366356",
"A366363"
]
| null | Seiichi Manyama, Oct 18 2023 | 2023-10-20T06:45:01 | oeisdata/seq/A363/A363816.seq | 4bf4d710100d46c069d993b888e51536 |
A363817 | G.f. satisfies A(x) = (1 + x/A(x))/(1 - x)^3. | [
"1",
"4",
"5",
"15",
"-5",
"111",
"-402",
"2172",
"-10892",
"57362",
"-305756",
"1656560",
"-9083341",
"50328219",
"-281324174",
"1584578882",
"-8984740332",
"51242962422",
"-293772467974",
"1691974930794",
"-9785378133066",
"56805049768410",
"-330880419984556",
"1933299689139664",
"-11328101469158229"
]
| [
"sign"
]
| 10 | 0 | 2 | [
"A363816",
"A363817",
"A366363"
]
| null | Seiichi Manyama, Oct 18 2023 | 2023-10-18T09:58:37 | oeisdata/seq/A363/A363817.seq | 9462180389e8416bde89e307bb40b18f |
A363818 | G.f. satisfies A(x) = (1 + x/A(x)^2)/(1 - x)^2. | [
"1",
"3",
"-1",
"24",
"-125",
"924",
"-6895",
"54181",
"-438737",
"3639655",
"-30769033",
"264122781",
"-2296010693",
"20171456222",
"-178818115155",
"1597550237324",
"-14369097515939",
"130010781029079",
"-1182520161325459",
"10806114831458755",
"-99163805247182631",
"913441732959868748"
]
| [
"sign"
]
| 19 | 0 | 2 | [
"A162477",
"A363816",
"A363818",
"A363819",
"A364629",
"A364630",
"A366364"
]
| null | Seiichi Manyama, Oct 18 2023 | 2023-10-18T11:35:40 | oeisdata/seq/A363/A363818.seq | f53c6c0f386255b0565a4c33da3f73ba |
A363819 | G.f. satisfies A(x) = (1 + x/A(x)^2)/(1 - x)^3. | [
"1",
"4",
"1",
"38",
"-193",
"1697",
"-14298",
"127836",
"-1175835",
"11078851",
"-106354266",
"1036575329",
"-10230191020",
"102031153812",
"-1026763493315",
"10412602349343",
"-106308046392516",
"1091783632303656",
"-11271378486953873",
"116907289944782853",
"-1217649336037820058"
]
| [
"sign"
]
| 11 | 0 | 2 | [
"A363818",
"A363819",
"A366364"
]
| null | Seiichi Manyama, Oct 18 2023 | 2023-10-18T09:58:29 | oeisdata/seq/A363/A363819.seq | f5fcfae2f87d6f470f3e8cf8efe08b59 |
A363820 | Moving the rightmost digit of a number to place it furthest to the left adds 9 to the number. | [
"12",
"23",
"34",
"45",
"56",
"67",
"78",
"89",
"101",
"212",
"323",
"434",
"545",
"656",
"767",
"878",
"989",
"1101",
"2212",
"3323",
"4434",
"5545",
"6656",
"7767",
"8878",
"9989",
"11101",
"22212",
"33323",
"44434",
"55545",
"66656",
"77767",
"88878",
"99989",
"111101",
"222212",
"333323",
"444434",
"555545",
"666656",
"777767",
"888878",
"999989"
]
| [
"base",
"nonn"
]
| 20 | 1 | 1 | [
"A010785",
"A228157",
"A363820",
"A363823"
]
| null | Eric Angelini, Oct 18 2023 | 2023-10-22T15:14:08 | oeisdata/seq/A363/A363820.seq | 49d3cb91703215701f2e1971114c559e |
A363821 | Lesser of 2 successive squarefree semiprimes (k, k+4) sandwiching 3 consecutive nonsquarefree numbers. | [
"1923",
"2573",
"2823",
"3427",
"3574",
"3869",
"3949",
"4474",
"4849",
"4911",
"5191",
"5489",
"5633",
"5947",
"6927",
"7153",
"7323",
"7397",
"7405",
"7441",
"7747",
"7985",
"8223",
"8347",
"8403",
"8917",
"9249",
"9385",
"9557",
"9773",
"10042",
"10447",
"10673",
"10681",
"11659",
"12219",
"13349",
"13423",
"13849",
"14209",
"14273",
"16323",
"16973"
]
| [
"nonn"
]
| 18 | 1 | 1 | [
"A006881",
"A013929",
"A363821"
]
| null | Massimo Kofler, Oct 18 2023 | 2023-11-22T22:15:14 | oeisdata/seq/A363/A363821.seq | c4369e2526110e06fa405dcfde836bf6 |
A363822 | a(n) is the conjectured number of stable distinct centroidal Voronoi tessellations (CVTs) of a unit disk with n generators (seeds). | [
"1",
"1",
"1",
"1",
"2",
"2",
"2",
"2",
"3",
"3",
"3",
"3",
"4",
"5",
"6",
"6",
"5",
"5",
"5",
"6",
"9",
"10"
]
| [
"nonn",
"hard",
"more"
]
| 28 | 0 | 5 | [
"A363822",
"A366544"
]
| null | Denis Ivanov, Oct 18 2023 | 2023-12-06T14:27:26 | oeisdata/seq/A363/A363822.seq | 42b8944574a011f05faf764b0a489ea9 |
A363823 | Moving the rightmost digit of a number to place it furthest to the left adds 18 to the number. | [
"13",
"24",
"35",
"46",
"57",
"68",
"79",
"202",
"313",
"424",
"535",
"646",
"757",
"868",
"979",
"1091",
"2202",
"3313",
"4424",
"5535",
"6646",
"7757",
"8868",
"9979",
"11091",
"22202",
"33313",
"44424",
"55535",
"66646",
"77757",
"88868",
"99979",
"111091",
"222202",
"333313",
"444424",
"555535",
"666646",
"777757",
"888868",
"999979"
]
| [
"base",
"nonn"
]
| 24 | 1 | 1 | [
"A010785",
"A363820",
"A363823"
]
| null | Eric Angelini, Oct 18 2023 | 2023-10-22T15:13:54 | oeisdata/seq/A363/A363823.seq | 88bc94518c3dfe038d4f41437ca480e6 |
A363824 | a(0) = 0; for n > 0, a(n) is the total number of other numbers, being constructed on a square spiral, that are visible from a(n-1) that equal a(n-1). | [
"0",
"0",
"1",
"0",
"2",
"0",
"2",
"0",
"3",
"0",
"3",
"1",
"1",
"2",
"2",
"3",
"2",
"2",
"5",
"0",
"3",
"2",
"4",
"0",
"5",
"0",
"4",
"1",
"3",
"3",
"4",
"1",
"3",
"4",
"1",
"3",
"5",
"1",
"4",
"1",
"5",
"2",
"5",
"2",
"6",
"0",
"4",
"2",
"7",
"0",
"4",
"5",
"4",
"4",
"5",
"3",
"6",
"1",
"5",
"3",
"5",
"4",
"9",
"0",
"4",
"6",
"1",
"8",
"0",
"9",
"1",
"7",
"0",
"10",
"0",
"10",
"0",
"9",
"2",
"7",
"2",
"6",
"3",
"6",
"3",
"6",
"1",
"7",
"2",
"9",
"1",
"7",
"3",
"6",
"4",
"7",
"2",
"8",
"0"
]
| [
"nonn",
"look"
]
| 16 | 0 | 5 | [
"A331400",
"A347357",
"A347358",
"A357985",
"A357991",
"A363824"
]
| null | Scott R. Shannon, Oct 19 2023 | 2023-10-20T01:51:39 | oeisdata/seq/A363/A363824.seq | 3576ef915ab398baaa8ad5381dee612b |
A363825 | The number of infinitary divisors of n that are exponentially odd numbers (A268335). | [
"1",
"2",
"2",
"1",
"2",
"4",
"2",
"3",
"1",
"4",
"2",
"2",
"2",
"4",
"4",
"1",
"2",
"2",
"2",
"2",
"4",
"4",
"2",
"6",
"1",
"4",
"3",
"2",
"2",
"8",
"2",
"3",
"4",
"4",
"4",
"1",
"2",
"4",
"4",
"6",
"2",
"8",
"2",
"2",
"2",
"4",
"2",
"2",
"1",
"2",
"4",
"2",
"2",
"6",
"4",
"6",
"4",
"4",
"2",
"4",
"2",
"4",
"2",
"1",
"4",
"8",
"2",
"2",
"4",
"8",
"2",
"3",
"2",
"4",
"2",
"2",
"4",
"8",
"2",
"2",
"1",
"4",
"2",
"4",
"4",
"4",
"4"
]
| [
"nonn",
"easy",
"mult"
]
| 11 | 1 | 2 | [
"A000005",
"A000120",
"A005117",
"A037445",
"A077609",
"A268335",
"A295878",
"A358260",
"A363825"
]
| null | Amiram Eldar, Oct 19 2023 | 2023-10-21T01:50:04 | oeisdata/seq/A363/A363825.seq | 793f227b30bcd4e3ff35c565e24f0496 |
A363826 | Triangular array, read by rows: T(n,k) = coefficients of the polynomial (-1)^(n+1)/(n+1)! N(x), where N(x) is the numerator of the (n-1)st derivative of 1/(1-x-x^2), for k = 1..n. | [
"1",
"1",
"2",
"2",
"3",
"3",
"3",
"8",
"6",
"4",
"1",
"3",
"4",
"2",
"1",
"8",
"30",
"45",
"40",
"15",
"6",
"13",
"56",
"105",
"105",
"70",
"21",
"7",
"21",
"104",
"224",
"280",
"210",
"112",
"28",
"8",
"34",
"189",
"468",
"672",
"630",
"378",
"168",
"36",
"9",
"11",
"68",
"189",
"312",
"336",
"252",
"126",
"48",
"9",
"2",
"89",
"605",
"1870",
"3465",
"4290",
"3696",
"2310",
"990"
]
| [
"nonn",
"tabl"
]
| 13 | 1 | 3 | [
"A094440",
"A363826"
]
| null | Clark Kimberling, Nov 26 2023 | 2023-12-23T14:41:36 | oeisdata/seq/A363/A363826.seq | 56daede79c8586e533629a6033a3f0be |
A363827 | Highest power of 2 dividing n which is <= sqrt(n). | [
"1",
"1",
"1",
"2",
"1",
"2",
"1",
"2",
"1",
"2",
"1",
"2",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"8",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"8",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"8",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"8",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"8",
"1",
"2",
"1",
"4"
]
| [
"easy",
"nonn"
]
| 21 | 1 | 4 | [
"A006519",
"A007814",
"A033676",
"A102572",
"A135517",
"A363827",
"A363828"
]
| null | Ilya Gutkovskiy, Oct 19 2023 | 2023-10-22T15:05:49 | oeisdata/seq/A363/A363827.seq | 07e88c42b6da653b066f8cf425b43b47 |
A363828 | Highest power of 2 dividing n which is < sqrt(n), for n >= 2; a(1) = 1. | [
"1",
"1",
"1",
"1",
"1",
"2",
"1",
"2",
"1",
"2",
"1",
"2",
"1",
"2",
"1",
"2",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"8",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"8",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"8",
"1",
"2",
"1",
"4",
"1",
"2",
"1",
"8",
"1",
"2",
"1",
"4"
]
| [
"nonn"
]
| 12 | 1 | 6 | [
"A006519",
"A033676",
"A135517",
"A363827",
"A363828"
]
| null | Ilya Gutkovskiy, Oct 19 2023 | 2023-10-22T17:01:15 | oeisdata/seq/A363/A363828.seq | 44af2113b78e24045a1731f899f8469b |
A363829 | Sum of the divisors of A000129(n) (Pell numbers). | [
"1",
"3",
"6",
"28",
"30",
"144",
"183",
"1080",
"1188",
"3780",
"5742",
"52416",
"33462",
"131760",
"251100",
"1290096",
"1145124",
"5702400",
"6804204",
"42336000",
"50176404",
"146352096",
"226041700",
"2333111040",
"1357893000",
"4818528000",
"9395060400",
"47385112320",
"44560482150",
"251337038400",
"264178169640"
]
| [
"nonn"
]
| 24 | 1 | 2 | [
"A000129",
"A000203",
"A272040",
"A363829",
"A363831",
"A363833",
"A364818",
"A364820"
]
| null | Tyler Busby, Oct 19 2023 | 2023-10-22T11:51:00 | oeisdata/seq/A363/A363829.seq | 7d96d4058d305f313a7b4d67c52b2d68 |
A363830 | Lesser of 2 successive sphenic numbers (k, k+4) sandwiching 3 consecutive nonsquarefree numbers. | [
"602",
"1374",
"2274",
"2522",
"3122",
"3282",
"4202",
"4922",
"4958",
"4974",
"5822",
"5885",
"6874",
"7298",
"7674",
"9062",
"9422",
"9474",
"10322",
"11222",
"12590",
"13074",
"15531",
"15722",
"16818",
"18766",
"19131",
"19745",
"20447",
"21535",
"22922",
"24774",
"24938",
"25323",
"25622",
"26522",
"26738",
"27978",
"28034",
"28074",
"28222"
]
| [
"nonn"
]
| 12 | 1 | 1 | [
"A007304",
"A013929",
"A363830"
]
| null | Massimo Kofler, Oct 19 2023 | 2023-11-22T22:15:39 | oeisdata/seq/A363/A363830.seq | 534921999928744ae8e846a2fcb4b1f8 |
A363831 | Number of divisors of A000129(n) (Pell numbers). | [
"1",
"2",
"2",
"6",
"2",
"8",
"3",
"16",
"4",
"8",
"2",
"72",
"2",
"12",
"12",
"40",
"4",
"32",
"4",
"96",
"12",
"16",
"4",
"384",
"8",
"16",
"16",
"144",
"2",
"288",
"8",
"96",
"8",
"32",
"12",
"1536",
"8",
"16",
"16",
"1024",
"2",
"288",
"4",
"384",
"96",
"32",
"4",
"3840",
"12",
"64",
"32",
"192",
"2",
"256",
"32",
"768",
"32",
"8",
"2",
"41472",
"8",
"64",
"96",
"896",
"64",
"256",
"4"
]
| [
"nonn"
]
| 17 | 1 | 2 | [
"A000005",
"A000129",
"A272040",
"A363829",
"A363831"
]
| null | Tyler Busby, Oct 19 2023 | 2023-10-21T23:38:57 | oeisdata/seq/A363/A363831.seq | 8fe2890498d1640743727a20e2142ad7 |
A363832 | Number of digits left of the radix point of n when written in base e using a greedy algorithm representation. | [
"1",
"1",
"1",
"2",
"2",
"2",
"2",
"2",
"3",
"3",
"3",
"3",
"3",
"3",
"3",
"3",
"3",
"3",
"3",
"3",
"3",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"4",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5",
"5"
]
| [
"nonn",
"base"
]
| 21 | 0 | 4 | [
"A001113",
"A055642",
"A105116",
"A362692",
"A363832",
"A366721"
]
| null | Paolo Xausa, Oct 19 2023 | 2023-10-24T04:07:21 | oeisdata/seq/A363/A363832.seq | 02398ba7fe8260292af5cf295d18c2df |
A363833 | Number of prime factors of A000129(n) (Pell numbers) (counted with multiplicity). | [
"0",
"1",
"1",
"3",
"1",
"3",
"2",
"5",
"2",
"3",
"1",
"7",
"1",
"4",
"4",
"7",
"2",
"5",
"2",
"7",
"4",
"4",
"2",
"10",
"3",
"4",
"4",
"8",
"1",
"9",
"3",
"9",
"3",
"5",
"4",
"12",
"3",
"4",
"4",
"11",
"1",
"9",
"2",
"9",
"7",
"5",
"2",
"14",
"4",
"6",
"5",
"8",
"1",
"8",
"5",
"11",
"5",
"3",
"1",
"17",
"3",
"6",
"7",
"13",
"6",
"8",
"2",
"10",
"4",
"9",
"3",
"17",
"2",
"7",
"10",
"10",
"6",
"10",
"4",
"15",
"7",
"5",
"2"
]
| [
"nonn"
]
| 20 | 1 | 4 | [
"A000129",
"A001222",
"A272040",
"A363829",
"A363831",
"A363833",
"A364818"
]
| null | Tyler Busby, Oct 19 2023 | 2023-10-21T15:00:31 | oeisdata/seq/A363/A363833.seq | 9111fa7fde825080efffc9c80adb6929 |
A363834 | Number of labeled digraphs (with self loops allowed) on [n] such that every strongly connected component of size at least 2 contains a vertex with a self loop. | [
"1",
"2",
"15",
"452",
"58023",
"31083662",
"66296957895",
"554842541248592",
"18340342731323665263",
"2411916363098805776251322",
"1266238008719333748929247025455",
"2657054767893996575723268008873476172",
"22295054304671836968688374028608806896204023"
]
| [
"nonn"
]
| 12 | 0 | 2 | [
"A003030",
"A070322",
"A363834",
"A365534"
]
| null | Geoffrey Critzer, Oct 19 2023 | 2023-10-21T06:17:21 | oeisdata/seq/A363/A363834.seq | 085583625a08a929f31b6de5118d718b |
A363835 | Numbers that are the concatenation of a square and a cube, and also the concatenation of a cube and a square. | [
"10",
"11",
"164",
"640",
"641",
"1441",
"1729",
"1961",
"6464",
"7290",
"7291",
"14096",
"40960",
"40961",
"64729",
"72964",
"115625",
"116641",
"125441",
"146656",
"148841",
"156250",
"156251",
"409664",
"466560",
"466561",
"644096",
"729729",
"1117649",
"1166464",
"1176490",
"1176491",
"1262144",
"1531441",
"1562564",
"1795664",
"2621440",
"2621441",
"4096729",
"4665664"
]
| [
"nonn",
"base"
]
| 12 | 1 | 1 | [
"A000290",
"A000578",
"A363835"
]
| null | Robert Israel, Oct 19 2023 | 2023-10-21T06:33:35 | oeisdata/seq/A363/A363835.seq | a47652f628c492d18aefa5dc73ad85ff |
A363836 | a(n) = smallest number m such that digitsum(m^n) < digitsum(m), or -1 if no such m exists. | [
"39",
"587",
"124499"
]
| [
"nonn",
"base",
"bref",
"hard",
"more"
]
| 20 | 2 | 1 | [
"A007953",
"A064209",
"A064399",
"A122484",
"A261439",
"A292832",
"A363836"
]
| null | Max Alekseyev, Oct 19 2023 | 2024-02-01T00:10:09 | oeisdata/seq/A363/A363836.seq | 62c49ce4f918c3589be6b0d0e57ca35b |
A363837 | Numbers k such that k-th Jacobsthal number A001045(k) is a semiprime. | [
"6",
"8",
"10",
"14",
"26",
"29",
"34",
"37",
"38",
"41",
"47",
"49",
"53",
"62",
"67",
"71",
"73",
"103",
"107",
"109",
"122",
"139",
"151",
"179",
"223",
"229",
"251",
"254",
"269",
"277",
"311",
"349",
"353",
"433",
"457",
"487",
"503",
"599",
"601",
"613",
"619",
"643",
"739",
"757",
"827",
"839",
"1031",
"1061",
"1117"
]
| [
"nonn",
"more"
]
| 18 | 1 | 1 | [
"A001045",
"A001358",
"A072381",
"A085726",
"A101757",
"A250292",
"A271314",
"A277356",
"A286567",
"A363837"
]
| null | Sean A. Irvine, Oct 19 2023 | 2025-02-16T08:34:05 | oeisdata/seq/A363/A363837.seq | 382b56ed7b928ac971e7fb9c71066650 |
A363838 | a(n) = Product_{b=2..n} b^gamma(n, b) where gamma(n, b) = Sum_{i>=1} floor(n/b^i). | [
"1",
"1",
"2",
"6",
"96",
"480",
"17280",
"120960",
"30965760",
"2508226560",
"250822656000",
"2759049216000",
"9535274090496000",
"123958563176448000",
"24295878382583808000",
"5466572636081356800000",
"179128652139113899622400000",
"3045187086364936293580800000",
"53278593263040925392489676800000"
]
| [
"nonn"
]
| 41 | 0 | 3 | [
"A153216",
"A363838"
]
| null | Michel Marcus, Oct 20 2023 | 2023-10-22T01:50:12 | oeisdata/seq/A363/A363838.seq | ab08a5e901bdec541dba62ff19489d28 |
A363839 | Numbers in the witch's multiplication table (German: "Hexeneinmaleins") in Goethe's Faust. | [
"1",
"10",
"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9",
"1",
"10",
"0",
"1"
]
| [
"nonn",
"word",
"fini",
"full"
]
| 28 | 1 | 2 | [
"A080992",
"A108579",
"A363839"
]
| null | Georg Fischer, Jun 23 2023 | 2023-06-24T05:43:34 | oeisdata/seq/A363/A363839.seq | df8c493606040b21188c721a91b18f39 |
A363840 | a(n) is the number of isomorphism classes of genus 2 hyperelliptic curves over the finite field of order prime(n). | [
"20",
"69",
"285",
"749",
"2813",
"4589",
"10149",
"14119",
"24907",
"49675",
"60613",
"102749",
"139613",
"160951",
"209947",
"300667",
"414357",
"457813",
"606151",
"721011",
"783511",
"992477",
"1150629",
"1418037",
"1834951",
"2071011",
"2196269",
"2461749",
"2602157",
"2898789",
"4113149",
"4513613",
"5161749",
"5390839",
"6638395",
"6909013",
"7764749"
]
| [
"nonn"
]
| 10 | 1 | 1 | [
"A362243",
"A363840",
"A363843"
]
| null | Robin Visser, Jun 23 2023 | 2023-06-25T08:13:44 | oeisdata/seq/A363/A363840.seq | 3b9aeaf69782ae795ca76fced3883f2d |
A363841 | Continued fraction expansion of Sum_{k>=0} 1/(k!)!^2. | [
"2",
"3",
"1",
"32399",
"4",
"1432456210278611587930429493084159999",
"1",
"3",
"32399",
"1",
"3"
]
| [
"nonn",
"cofr"
]
| 63 | 0 | 1 | [
"A001511",
"A336810",
"A363841",
"A363842"
]
| null | Daniel Hoyt, Jun 23 2023 | 2023-08-05T22:17:01 | oeisdata/seq/A363/A363841.seq | e1cb557d6bb4901ebc9039e5d046beef |
A363842 | Decimal expansion of Sum_{k>=0} 1/(k!)!^2. | [
"2",
"2",
"5",
"0",
"0",
"0",
"1",
"9",
"2",
"9",
"0",
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"9",
"0",
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"9",
"0",
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"9",
"0",
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"9",
"0",
"1",
"4",
"9",
"4",
"3",
"3",
"7",
"7",
"0",
"1",
"0",
"4",
"2",
"8",
"4",
"9",
"4",
"1",
"6",
"2",
"2",
"0",
"3",
"5",
"2",
"4",
"4",
"3",
"4",
"4",
"8",
"0",
"7",
"7",
"5",
"8",
"5",
"2",
"2",
"5"
]
| [
"nonn",
"cons"
]
| 12 | 1 | 1 | [
"A336686",
"A363841",
"A363842"
]
| null | Daniel Hoyt, Jun 23 2023 | 2023-06-25T08:13:17 | oeisdata/seq/A363/A363842.seq | 4acfa9e6f7576d54b7f3e251852b903d |
A363843 | a(n) is the number of isomorphism classes of genus 3 hyperelliptic curves over the finite field of order prime(n). | [
"76",
"526",
"6508",
"34228",
"324562",
"747004",
"2849576",
"4965266",
"12896050",
"41071144",
"57316082",
"138789292",
"231850328",
"294172382",
"458893426",
"836688844",
"1430252626",
"1689646684",
"2700843026",
"3609164734",
"4146921368",
"6155086706",
"7879211410",
"11169529016",
"17176506056",
"21022261804",
"23187646130"
]
| [
"nonn"
]
| 9 | 1 | 1 | [
"A362243",
"A363840",
"A363843"
]
| null | Robin Visser, Jun 23 2023 | 2023-06-25T08:13:48 | oeisdata/seq/A363/A363843.seq | 2a6de6e4ed99d58444a5f6bbb7188b7c |
A363844 | Number of k <= P(n) such that gcd(k,P(n)) > 1, yet there is a prime q | k that does not divide P(n), where P(n) = A002110(n). | [
"0",
"0",
"0",
"5",
"95",
"1548",
"23110",
"413508",
"8020826",
"186514437",
"5447473481",
"169902931273",
"6317112341154",
"260105450523376",
"11228680152402376",
"529602052783103298",
"28154196548377380922",
"1665532558381753842459",
"101854713853486313230170",
"6839699495691464491151135",
"486637286249491454965285898"
]
| [
"nonn",
"hard"
]
| 9 | 0 | 4 | [
"A000010",
"A002110",
"A005867",
"A243823",
"A363061",
"A363844"
]
| null | Michael De Vlieger, Jun 23 2023 | 2024-07-17T08:58:08 | oeisdata/seq/A363/A363844.seq | 6110036d45467dd7bae85f8bd200477a |
A363845 | Triangle read by rows: T(n,k) = number of connected n-node graphs with k nodes in distinguished bipartite block, k = 0..n. | [
"1",
"1",
"1",
"0",
"1",
"0",
"0",
"1",
"1",
"0",
"0",
"1",
"2",
"1",
"0",
"0",
"1",
"4",
"4",
"1",
"0",
"0",
"1",
"6",
"13",
"6",
"1",
"0",
"0",
"1",
"9",
"34",
"34",
"9",
"1",
"0",
"0",
"1",
"12",
"76",
"150",
"76",
"12",
"1",
"0",
"0",
"1",
"16",
"155",
"558",
"558",
"155",
"16",
"1",
"0",
"0",
"1",
"20",
"290",
"1824",
"3529",
"1824",
"290",
"20",
"1",
"0",
"0",
"1",
"25",
"510",
"5375",
"19687",
"19687",
"5375",
"510",
"25",
"1",
"0",
"0",
"1",
"30",
"853",
"14549",
"98726",
"194203",
"98726",
"14549",
"853",
"30",
"1",
"0"
]
| [
"nonn",
"tabl"
]
| 14 | 0 | 13 | [
"A002724",
"A028657",
"A363845",
"A363846"
]
| null | Max Alekseyev, Jun 24 2023 | 2023-06-24T16:02:40 | oeisdata/seq/A363/A363845.seq | 54f737269b7f670cda0adea0553ca5ef |
A363846 | Number of connected bipartite graphs on 2n nodes with a marked bipartite set of size n. | [
"1",
"1",
"2",
"13",
"150",
"3529",
"194203",
"29350896",
"13668966399",
"20662731749804",
"103588456044907944",
"1744955436868541083098",
"99859125842603176324368784",
"19611138475504485904873456937288",
"13340730475029359536419515017040194246",
"31706419735128559894860278029259121951682970",
"265351742295121848168241791689670791068746978140331"
]
| [
"nonn"
]
| 12 | 0 | 3 | [
"A002724",
"A028657",
"A123549",
"A363845",
"A363846"
]
| null | Max Alekseyev, Jun 24 2023 | 2023-06-25T08:13:31 | oeisdata/seq/A363/A363846.seq | 2560e824e8869fe3edf60bd662b6584b |
A363847 | Numbers k such that Omega(m*(m+1)) < Omega(k*(k+1)) for all m < k, where Omega(k) is the number of prime divisors of k counted with multiplicity (A001222). | [
"1",
"2",
"3",
"7",
"8",
"15",
"32",
"63",
"224",
"255",
"512",
"3968",
"4095",
"14336",
"32768",
"65535",
"180224",
"262143",
"1048575",
"14680064",
"16777215",
"134217728",
"268435455",
"1073741823",
"8589934592",
"12884901887",
"34359738368",
"68719476735",
"1099511627775",
"4398046511103",
"17592186044415",
"35184372088832"
]
| [
"nonn"
]
| 8 | 1 | 2 | [
"A001222",
"A002378",
"A059958",
"A075088",
"A076550",
"A363847"
]
| null | Amiram Eldar, Jun 24 2023 | 2023-07-09T02:43:46 | oeisdata/seq/A363/A363847.seq | 39b87145a8b43498430c8219c56c6610 |
A363848 | Decimal expansion of the arithmetic mean of the isoperimetric quotient of ellipses when expressed in terms of their eccentricity. | [
"9",
"3",
"3",
"1",
"7",
"4",
"6",
"5",
"3",
"4",
"9",
"8",
"4",
"6",
"2",
"6",
"4",
"4",
"0",
"1",
"5",
"5",
"4",
"4",
"5",
"3",
"5",
"2",
"4",
"8",
"4",
"6",
"1",
"0",
"6",
"1",
"0",
"8",
"6",
"7",
"7",
"3",
"8",
"5",
"6",
"2",
"0",
"1",
"9",
"3",
"4",
"9",
"4",
"3",
"5",
"9",
"0",
"1",
"0",
"3",
"7",
"9",
"9",
"8",
"2",
"3",
"6",
"3",
"0",
"9",
"4",
"1",
"8",
"6",
"5",
"4",
"2",
"6",
"2",
"0",
"3",
"4",
"4",
"7",
"5",
"1",
"9",
"6"
]
| [
"nonn",
"cons"
]
| 43 | 0 | 1 | [
"A091476",
"A363848",
"A363874",
"A363876"
]
| null | Tian Vlasic, Jun 24 2023 | 2023-07-31T16:56:26 | oeisdata/seq/A363/A363848.seq | 77b18531440119d62e159b494ec6467c |
A363849 | Triangular array read by rows. T(n,k) is the number of Green's H-classes of rank k in the semigroup of partial transformations, n >= 0, 0 <= k <= n. | [
"1",
"1",
"1",
"1",
"6",
"1",
"1",
"21",
"18",
"1",
"1",
"60",
"150",
"40",
"1",
"1",
"155",
"900",
"650",
"75",
"1",
"1",
"378",
"4515",
"7000",
"2100",
"126",
"1",
"1",
"889",
"20286",
"59535",
"36750",
"5586",
"196",
"1",
"1",
"2040",
"84700",
"435120",
"486570",
"148176",
"12936",
"288",
"1",
"1",
"4599",
"335880",
"2864820",
"5358150",
"2876202",
"493920",
"27000",
"405",
"1"
]
| [
"nonn",
"tabl"
]
| 23 | 0 | 5 | [
"A000012",
"A000169",
"A002411",
"A007318",
"A008277",
"A066524",
"A090683",
"A101818",
"A134055",
"A363849"
]
| null | Geoffrey Critzer, Jun 24 2023 | 2023-06-25T12:48:18 | oeisdata/seq/A363/A363849.seq | 6ab34475d1f865c2fab3337051af2705 |
A363850 | Number of divisors of 7*n-3 of form 7*k+1. | [
"1",
"1",
"1",
"1",
"2",
"1",
"1",
"1",
"2",
"1",
"1",
"1",
"3",
"1",
"1",
"1",
"2",
"1",
"1",
"1",
"3",
"1",
"1",
"2",
"2",
"1",
"1",
"1",
"3",
"1",
"1",
"1",
"2",
"1",
"2",
"1",
"3",
"1",
"2",
"1",
"2",
"1",
"1",
"1",
"3",
"2",
"1",
"1",
"2",
"1",
"1",
"1",
"3",
"2",
"1",
"1",
"4",
"1",
"1",
"1",
"3",
"1",
"1",
"1",
"2",
"1",
"1",
"2",
"4",
"1",
"1",
"1",
"2",
"1",
"2",
"1",
"3",
"1",
"3",
"1",
"2",
"1",
"1",
"2",
"3",
"1",
"1",
"1",
"2",
"2",
"1",
"1",
"4",
"1",
"1",
"1",
"2",
"1",
"2",
"1"
]
| [
"nonn"
]
| 14 | 1 | 5 | [
"A279061",
"A363806",
"A363850"
]
| null | Seiichi Manyama, Jun 24 2023 | 2023-06-25T10:39:22 | oeisdata/seq/A363/A363850.seq | ab9df09e7f7e675664c8eedd61a12bec |
A363851 | Number of divisors of 7*n-4 of form 7*k+1. | [
"1",
"1",
"1",
"2",
"1",
"1",
"2",
"1",
"1",
"2",
"1",
"2",
"2",
"1",
"1",
"2",
"1",
"1",
"2",
"2",
"1",
"3",
"1",
"1",
"2",
"1",
"1",
"3",
"1",
"1",
"2",
"2",
"1",
"2",
"1",
"2",
"3",
"1",
"1",
"2",
"1",
"2",
"2",
"2",
"1",
"2",
"1",
"1",
"2",
"1",
"1",
"5",
"1",
"2",
"2",
"1",
"1",
"2",
"1",
"2",
"2",
"2",
"1",
"2",
"1",
"1",
"3",
"2",
"1",
"2",
"2",
"2",
"2",
"1",
"1",
"4",
"1",
"1",
"2",
"1",
"1",
"4",
"1",
"2",
"2",
"1",
"1",
"3",
"1",
"1",
"2",
"3",
"1",
"2",
"1",
"1",
"3",
"2",
"1",
"4"
]
| [
"nonn"
]
| 15 | 1 | 4 | [
"A279061",
"A363805",
"A363851"
]
| null | Seiichi Manyama, Jun 24 2023 | 2023-06-25T09:43:47 | oeisdata/seq/A363/A363851.seq | 17d1646a15f087162d0fab79ecc2068b |
A363852 | Number of divisors of 7*n-5 of form 7*k+1. | [
"1",
"1",
"2",
"1",
"2",
"1",
"2",
"1",
"2",
"1",
"3",
"1",
"2",
"1",
"2",
"1",
"2",
"1",
"3",
"2",
"2",
"1",
"2",
"1",
"2",
"1",
"3",
"1",
"3",
"1",
"2",
"1",
"2",
"1",
"4",
"1",
"2",
"2",
"2",
"1",
"2",
"1",
"3",
"1",
"2",
"1",
"3",
"1",
"2",
"2",
"4",
"1",
"2",
"1",
"2",
"2",
"2",
"1",
"3",
"1",
"2",
"1",
"2",
"1",
"4",
"1",
"4",
"1",
"2",
"1",
"2",
"1",
"3",
"2",
"3",
"1",
"2",
"1",
"2",
"2",
"2",
"1",
"5",
"1",
"2",
"1",
"2",
"1",
"2",
"1",
"3",
"2",
"2",
"1",
"4",
"2",
"2",
"1",
"4",
"1"
]
| [
"nonn"
]
| 16 | 1 | 3 | [
"A279061",
"A363795",
"A363852"
]
| null | Seiichi Manyama, Jun 24 2023 | 2023-06-25T09:43:01 | oeisdata/seq/A363/A363852.seq | 47cbed22f13b601b9594087ec319fbbc |
A363853 | Number of divisors of 7*n-6 of form 7*k+1. | [
"1",
"2",
"2",
"2",
"2",
"2",
"2",
"2",
"2",
"3",
"2",
"2",
"2",
"2",
"2",
"2",
"2",
"4",
"2",
"2",
"2",
"2",
"2",
"2",
"2",
"4",
"2",
"2",
"2",
"2",
"2",
"2",
"3",
"4",
"2",
"2",
"2",
"2",
"2",
"2",
"2",
"4",
"2",
"2",
"2",
"2",
"2",
"4",
"2",
"4",
"2",
"2",
"2",
"2",
"2",
"2",
"2",
"4",
"2",
"2",
"2",
"2",
"4",
"2",
"2",
"4",
"2",
"2",
"2",
"3",
"2",
"2",
"2",
"4",
"2",
"2",
"2",
"4",
"2",
"2",
"2",
"4",
"2",
"2",
"2",
"2",
"2",
"2",
"2",
"4",
"2",
"4",
"4",
"2",
"2",
"2",
"2",
"4",
"2",
"2"
]
| [
"nonn"
]
| 13 | 1 | 2 | [
"A279061",
"A359212",
"A359238",
"A359309",
"A363853"
]
| null | Seiichi Manyama, Jun 24 2023 | 2023-06-25T09:42:51 | oeisdata/seq/A363/A363853.seq | 75da0376684e3de74f0bce25099769b4 |
A363854 | Number of divisors of 7*n-2 of form 7*k+6. | [
"0",
"1",
"0",
"1",
"0",
"1",
"0",
"2",
"0",
"1",
"0",
"1",
"0",
"2",
"0",
"1",
"1",
"1",
"0",
"2",
"0",
"1",
"0",
"1",
"0",
"3",
"0",
"1",
"0",
"2",
"0",
"2",
"0",
"1",
"1",
"1",
"0",
"2",
"0",
"1",
"0",
"1",
"1",
"3",
"0",
"2",
"0",
"1",
"0",
"2",
"0",
"1",
"1",
"1",
"0",
"3",
"0",
"1",
"0",
"1",
"0",
"4",
"0",
"1",
"0",
"2",
"0",
"2",
"1",
"1",
"1",
"1",
"0",
"2",
"0",
"1",
"0",
"2",
"0",
"3",
"0",
"2",
"0",
"1",
"0",
"3",
"0",
"1",
"2",
"1",
"0",
"2",
"0",
"2",
"1",
"1",
"0",
"3",
"0",
"1"
]
| [
"nonn"
]
| 17 | 1 | 8 | [
"A361691",
"A363795",
"A363808",
"A363854",
"A363855",
"A363856",
"A363857",
"A363858"
]
| null | Seiichi Manyama, Jun 24 2023 | 2023-06-25T09:42:20 | oeisdata/seq/A363/A363854.seq | d8a5873fe72f089c33ac8b8bf0d9c26e |
A363855 | Number of divisors of 7*n-3 of form 7*k+6. | [
"0",
"0",
"1",
"0",
"0",
"1",
"0",
"0",
"2",
"0",
"0",
"1",
"0",
"0",
"2",
"0",
"0",
"1",
"1",
"0",
"2",
"0",
"0",
"1",
"0",
"0",
"2",
"0",
"1",
"1",
"0",
"1",
"2",
"0",
"0",
"1",
"0",
"0",
"3",
"0",
"0",
"1",
"0",
"0",
"3",
"0",
"0",
"1",
"2",
"0",
"2",
"0",
"0",
"1",
"0",
"0",
"2",
"1",
"1",
"1",
"0",
"0",
"2",
"0",
"0",
"2",
"0",
"0",
"4",
"0",
"1",
"1",
"0",
"0",
"2",
"0",
"0",
"1",
"1",
"0",
"2",
"0",
"1",
"2",
"0",
"0",
"2",
"0",
"2",
"1",
"0",
"0",
"3",
"0",
"0",
"1",
"1",
"0",
"3",
"1"
]
| [
"nonn"
]
| 15 | 1 | 9 | [
"A361691",
"A363805",
"A363808",
"A363854",
"A363855",
"A363856",
"A363857",
"A363858"
]
| null | Seiichi Manyama, Jun 24 2023 | 2023-06-25T09:41:43 | oeisdata/seq/A363/A363855.seq | fcf62b43452d00fc32daa80a2421016d |
A363856 | Number of divisors of 7*n-4 of form 7*k+6. | [
"0",
"0",
"0",
"1",
"0",
"0",
"0",
"1",
"0",
"1",
"0",
"1",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"1",
"1",
"1",
"0",
"1",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"2",
"0",
"2",
"0",
"1",
"0",
"0",
"0",
"2",
"0",
"0",
"1",
"1",
"0",
"1",
"1",
"1",
"0",
"0",
"0",
"3",
"0",
"1",
"0",
"1",
"0",
"1",
"0",
"2",
"0",
"0",
"0",
"2",
"1",
"0",
"0",
"1",
"0",
"2",
"0",
"2",
"1",
"0",
"0",
"3",
"0",
"0",
"0",
"1",
"0",
"1",
"0",
"1",
"0",
"1",
"1",
"3",
"0",
"0",
"0",
"2",
"0",
"1",
"0",
"1",
"1",
"1",
"1",
"2"
]
| [
"nonn"
]
| 15 | 1 | 16 | [
"A361691",
"A363806",
"A363808",
"A363854",
"A363855",
"A363856",
"A363857",
"A363858"
]
| null | Seiichi Manyama, Jun 24 2023 | 2023-06-25T09:40:32 | oeisdata/seq/A363/A363856.seq | 3fdbab97418179ea28b33ff28d8b3876 |
A363857 | Number of divisors of 7*n-5 of form 7*k+6. | [
"0",
"0",
"0",
"0",
"1",
"0",
"0",
"0",
"0",
"1",
"1",
"0",
"0",
"0",
"1",
"0",
"1",
"0",
"0",
"1",
"0",
"0",
"2",
"0",
"1",
"0",
"0",
"0",
"1",
"1",
"0",
"0",
"0",
"0",
"3",
"1",
"0",
"0",
"0",
"1",
"1",
"0",
"0",
"0",
"1",
"0",
"2",
"0",
"1",
"1",
"0",
"0",
"1",
"0",
"2",
"0",
"0",
"0",
"2",
"1",
"0",
"1",
"0",
"0",
"2",
"0",
"0",
"0",
"0",
"1",
"2",
"0",
"0",
"1",
"3",
"0",
"1",
"0",
"0",
"1",
"0",
"0",
"2",
"0",
"1",
"0",
"0",
"1",
"1",
"1",
"0",
"0",
"1",
"0",
"4",
"0",
"0",
"0",
"0",
"1"
]
| [
"nonn"
]
| 15 | 1 | 23 | [
"A361691",
"A363807",
"A363808",
"A363854",
"A363855",
"A363856",
"A363857",
"A363858"
]
| null | Seiichi Manyama, Jun 24 2023 | 2023-06-25T10:42:28 | oeisdata/seq/A363/A363857.seq | 29fa42be95a83b141182e18bdd63515e |
A363858 | Number of divisors of 7*n-6 of form 7*k+6. | [
"0",
"0",
"0",
"0",
"0",
"1",
"0",
"0",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"0",
"0",
"2",
"1",
"0",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"0",
"0",
"2",
"0",
"2",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"0",
"0",
"2",
"0",
"0",
"2",
"0",
"0",
"2",
"0",
"0",
"0",
"1",
"0",
"2",
"0",
"0",
"0",
"2",
"0",
"2",
"0",
"0",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"0",
"2",
"4",
"0",
"0",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"0",
"0",
"4",
"0",
"0",
"0",
"0",
"0",
"2",
"0",
"2",
"0",
"0"
]
| [
"nonn"
]
| 15 | 1 | 12 | [
"A359239",
"A359241",
"A359327",
"A361691",
"A363808",
"A363854",
"A363855",
"A363856",
"A363857",
"A363858"
]
| null | Seiichi Manyama, Jun 24 2023 | 2023-06-25T10:42:08 | oeisdata/seq/A363/A363858.seq | 68e6ba78909c9a50536193047911d8be |
A363859 | Number of divisors of 7*n-1 of form 7*k+2. | [
"1",
"0",
"1",
"1",
"1",
"0",
"2",
"0",
"1",
"1",
"1",
"0",
"3",
"0",
"1",
"1",
"1",
"0",
"2",
"0",
"1",
"2",
"2",
"0",
"2",
"0",
"1",
"1",
"1",
"0",
"3",
"0",
"2",
"1",
"1",
"0",
"2",
"0",
"2",
"2",
"1",
"0",
"3",
"0",
"1",
"1",
"1",
"0",
"3",
"0",
"1",
"1",
"2",
"0",
"3",
"1",
"1",
"2",
"1",
"0",
"2",
"0",
"2",
"1",
"1",
"0",
"3",
"0",
"1",
"1",
"2",
"0",
"4",
"0",
"1",
"2",
"1",
"0",
"3",
"0",
"1",
"1",
"2",
"0",
"3",
"0",
"2",
"1",
"1",
"1",
"2",
"0",
"2",
"2",
"1",
"0",
"2",
"0",
"1",
"1"
]
| [
"nonn"
]
| 10 | 1 | 7 | [
"A363795",
"A363805",
"A363859"
]
| null | Seiichi Manyama, Jun 24 2023 | 2023-06-25T10:41:09 | oeisdata/seq/A363/A363859.seq | a906ac50aac26c2f453a10eee449e6e7 |
A363860 | Number of divisors of 7*n-1 of form 7*k+4. | [
"0",
"0",
"1",
"0",
"0",
"0",
"1",
"1",
"0",
"0",
"1",
"0",
"1",
"0",
"1",
"0",
"0",
"1",
"2",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"1",
"1",
"0",
"1",
"2",
"0",
"1",
"0",
"1",
"0",
"0",
"1",
"1",
"0",
"1",
"0",
"3",
"0",
"0",
"0",
"1",
"1",
"1",
"0",
"1",
"1",
"1",
"0",
"2",
"0",
"0",
"1",
"1",
"0",
"0",
"0",
"3",
"0",
"0",
"0",
"3",
"2",
"0",
"0",
"1",
"0",
"1",
"1",
"1",
"0",
"0",
"1",
"2",
"0",
"0",
"0",
"2",
"0",
"2",
"0",
"2",
"1",
"0",
"0",
"2",
"0",
"2",
"0",
"1",
"1",
"0",
"1",
"1",
"0"
]
| [
"nonn"
]
| 10 | 1 | 19 | [
"A363806",
"A363807",
"A363860"
]
| null | Seiichi Manyama, Jun 24 2023 | 2023-06-25T10:40:59 | oeisdata/seq/A363/A363860.seq | 6df6395a001e3e06c1e85ee1f109bea6 |
A363861 | Sequence related to chains in type D noncrossing partitions. | [
"4",
"6",
"64",
"100",
"1296",
"2058",
"32768",
"52488",
"1000000",
"1610510",
"35831808",
"57921708",
"1475789056",
"2392031250",
"68719476736",
"111612119056",
"3570467226624",
"5808378560022",
"204800000000000",
"333597619564020",
"12855002631049216",
"20961814674106394",
"876488338465357824",
"1430511474609375000",
"64509974703297150976"
]
| [
"nonn",
"easy"
]
| 9 | 3 | 1 | [
"A078707",
"A152291",
"A363861"
]
| null | F. Chapoton, Jun 25 2023 | 2023-07-15T05:49:53 | oeisdata/seq/A363/A363861.seq | 0e881f5a7477be0563378286310bac69 |
A363862 | Number of equivalence classes of unimodular n X n matrices with elements {0, 1}. | [
"1",
"2",
"7",
"49",
"831",
"39637",
"5593528",
"2363927011"
]
| [
"nonn",
"hard",
"more"
]
| 7 | 1 | 2 | [
"A306837",
"A363862"
]
| null | Brendan McKay, Jun 25 2023 | 2023-06-25T05:58:59 | oeisdata/seq/A363/A363862.seq | 3a2b00ae84fd4a9e7bc23078562efea5 |
A363863 | Numbers expressible as j^2 - k^2, 1 <= k <= j-2 ("squares with a square hole"). | [
"8",
"12",
"15",
"16",
"20",
"21",
"24",
"27",
"28",
"32",
"33",
"35",
"36",
"39",
"40",
"44",
"45",
"48",
"51",
"52",
"55",
"56",
"57",
"60",
"63",
"64",
"65",
"68",
"69",
"72",
"75",
"76",
"77",
"80",
"81",
"84",
"85",
"87",
"88",
"91",
"92",
"93",
"95",
"96",
"99",
"100",
"104",
"105",
"108",
"111",
"112",
"115",
"116",
"117",
"119",
"120",
"123",
"124",
"125",
"128",
"129",
"132",
"133",
"135",
"136"
]
| [
"easy",
"nonn"
]
| 45 | 1 | 1 | [
"A016825",
"A024352",
"A080257",
"A363863"
]
| null | Thomas A. Fisher, Jun 25 2023 | 2024-05-31T22:06:55 | oeisdata/seq/A363/A363863.seq | bbec7480d778f425b38a54d71d0dbff7 |
A363864 | a(n) = A143007(2*n,n). | [
"1",
"13",
"661",
"46705",
"3833941",
"342981013",
"32443313449",
"3191377294153",
"323158664855125",
"33461619685494025",
"3526747995762849661",
"377103695616260979313",
"40807220545026078297961",
"4460530114068960956304865",
"491780450707942086338993761",
"54624008737670717933342875705"
]
| [
"nonn",
"easy"
]
| 18 | 0 | 2 | [
"A005259",
"A108625",
"A143007",
"A363864",
"A363865",
"A363871"
]
| null | Peter Bala, Jun 25 2023 | 2024-10-18T11:42:49 | oeisdata/seq/A363/A363864.seq | b2ae3249e65b8c951729ab2ba3505aa8 |
A363865 | a(n) = A143007(3*n,n). | [
"1",
"25",
"2773",
"430081",
"77620661",
"15276834025",
"3180268712125",
"688612022804773",
"153504724110658741",
"34994264014955310181",
"8120680975872203708773",
"1911897036160037674700065",
"455553725980571500127902109"
]
| [
"nonn",
"easy"
]
| 10 | 0 | 2 | [
"A005259",
"A143007",
"A363864",
"A363865",
"A363871"
]
| null | Peter Bala, Jun 25 2023 | 2023-06-30T08:18:42 | oeisdata/seq/A363/A363865.seq | 48461863ff431cb873d63fd52eb92c8f |
A363866 | a(n) = A143007(3*n,2*n). | [
"1",
"253",
"494341",
"1403375905",
"4684608730309",
"17126002734202253",
"66366682204430084569",
"267832273159817887638881",
"1113652383352571992799711941",
"4737943697041408831021629805753",
"20526206833382185439454748049996341"
]
| [
"nonn",
"easy"
]
| 9 | 0 | 2 | [
"A005259",
"A143007",
"A363864",
"A363866",
"A363871"
]
| null | Peter Bala, Jun 25 2023 | 2023-06-30T08:18:47 | oeisdata/seq/A363/A363866.seq | 5becd266095412f3617368563fb2159a |
A363867 | a(n) = A108625(n,2*n). | [
"1",
"5",
"61",
"923",
"15421",
"272755",
"5006275",
"94307855",
"1811113021",
"35301145037",
"696227550811",
"13863654392945",
"278264498108611",
"5622746346645953",
"114268249446672151",
"2333733620675302423",
"47868774493665731645",
"985608360056821004233",
"20362035153323824192645"
]
| [
"nonn",
"easy"
]
| 23 | 0 | 2 | [
"A005258",
"A099601",
"A108625",
"A363864",
"A363867",
"A363871"
]
| null | Peter Bala, Jun 27 2023 | 2024-04-26T12:09:18 | oeisdata/seq/A363/A363867.seq | b53818fa82c188aff06bbd7768ea259b |
A363868 | a(n) = A108625(3*n, n). | [
"1",
"13",
"505",
"24691",
"1337961",
"76869013",
"4586370139",
"280973874215",
"17552736006121",
"1113134497824901",
"71437216036404505",
"4629194489296980715",
"302391678415222922475",
"19886936616891022422159",
"1315438146193644502479255",
"87445220568000089973356191",
"5838332204000163260729138153"
]
| [
"nonn",
"easy"
]
| 19 | 0 | 2 | [
"A005258",
"A099601",
"A108625",
"A363864",
"A363868",
"A363871"
]
| null | Peter Bala, Jun 27 2023 | 2024-02-26T09:14:19 | oeisdata/seq/A363/A363868.seq | 43662d2340fffa5cd335cf574efea340 |
A363869 | a(n) = A108625(3*n, 2*n). | [
"1",
"55",
"12559",
"3685123",
"1205189519",
"418856591055",
"151353475289275",
"56193989426243199",
"21283943385478109071",
"8185785098679048061837",
"3186604888590691870779559",
"1252744279186835597251089055",
"496508748101370063304243706939",
"198134918989716743103591120933103"
]
| [
"nonn",
"easy"
]
| 18 | 0 | 2 | [
"A005258",
"A099601",
"A108625",
"A363864",
"A363869",
"A363871"
]
| null | Peter Bala, Jun 27 2023 | 2024-04-27T07:58:19 | oeisdata/seq/A363/A363869.seq | 72db1a68c4c2c04a024a2b2a28e328e8 |
A363870 | a(n) = A108625(n, 3*n). | [
"1",
"7",
"127",
"2869",
"71631",
"1894007",
"51978529",
"1464209383",
"42050906191",
"1225778575021",
"36156060825127",
"1076772406867549",
"32324178587781393",
"976893529756053501",
"29693248490460447747",
"907027175886637081619",
"27826656707376811715663",
"856949305975908664414097"
]
| [
"nonn",
"easy"
]
| 18 | 0 | 2 | [
"A005258",
"A099601",
"A108625",
"A363864",
"A363870",
"A363871"
]
| null | Peter Bala, Jun 27 2023 | 2024-02-26T09:14:15 | oeisdata/seq/A363/A363870.seq | e3baebb08debce561321a76b7cbddc65 |
A363871 | a(n) = A108625(2*n, 3*n). | [
"1",
"37",
"5321",
"980407",
"201186025",
"43859522037",
"9939874413899",
"2314357836947571",
"549694303511409641",
"132569070434503802605",
"32360243622138480889321",
"7977001183875449759759807",
"1982402220908671654519130731",
"496031095735572731850517509727"
]
| [
"nonn",
"easy"
]
| 17 | 0 | 2 | [
"A005258",
"A099601",
"A108625",
"A363864",
"A363870",
"A363871"
]
| null | Peter Bala, Jun 27 2023 | 2024-02-26T09:14:11 | oeisdata/seq/A363/A363871.seq | 2282db4070a64c8c146dd7db0d23dd40 |
A363872 | Lexicographically earliest sequence of distinct terms > 0 such that n is a substring of a(n) + a(n+1). | [
"1",
"9",
"3",
"10",
"4",
"11",
"5",
"2",
"6",
"13",
"87",
"23",
"89",
"24",
"90",
"25",
"91",
"26",
"92",
"27",
"93",
"28",
"94",
"29",
"95",
"30",
"96",
"31",
"97",
"32",
"98",
"33",
"99",
"34",
"100",
"35",
"101",
"36",
"102",
"37",
"103",
"38",
"104",
"39",
"105",
"40",
"106",
"41",
"7",
"42",
"8",
"43",
"109",
"44",
"110",
"45",
"111",
"46",
"12",
"47",
"113",
"48",
"14",
"49",
"15"
]
| [
"base",
"nonn"
]
| 19 | 1 | 2 | [
"A299952",
"A363872"
]
| null | Eric Angelini, Jul 03 2023 | 2023-08-02T11:52:52 | oeisdata/seq/A363/A363872.seq | 8433c9de39bdf5af74e7f7b17b3dfec7 |
A363873 | Least k such that 2^k begins with n but is not exactly n. | [
"4",
"8",
"5",
"12",
"9",
"6",
"46",
"13",
"53",
"10",
"50",
"7",
"17",
"47",
"77",
"14",
"34",
"54",
"84",
"11",
"31",
"51",
"61",
"81",
"8",
"18",
"38",
"48",
"68",
"78",
"98",
"15",
"25",
"35",
"45",
"55",
"75",
"85",
"95",
"12",
"22",
"32",
"42",
"145",
"52",
"62",
"72",
"82",
"92",
"102",
"9",
"19",
"29",
"39",
"142",
"49",
"59",
"162",
"69",
"79",
"89",
"192",
"99",
"109",
"16",
"119",
"26",
"36",
"139",
"46"
]
| [
"nonn",
"base"
]
| 25 | 1 | 1 | [
"A000079",
"A018856",
"A363873"
]
| null | Robert G. Wilson v, Jul 03 2023 | 2023-08-06T01:42:02 | oeisdata/seq/A363/A363873.seq | e0552a18f837794d07e10d683b823347 |
A363874 | Decimal expansion of the harmonic mean of the isoperimetric quotient of ellipses when expressed in terms of their eccentricity. | [
"8",
"7",
"8",
"9",
"2",
"0",
"6",
"5",
"0",
"8",
"2",
"9",
"6",
"0",
"4",
"1",
"2",
"4",
"6",
"2",
"0",
"2",
"9",
"7",
"3",
"2",
"0",
"0",
"5",
"3",
"0",
"7",
"8",
"4",
"1",
"6",
"0",
"2",
"4",
"9",
"3",
"3",
"6",
"4",
"8",
"6",
"4",
"2",
"2",
"9",
"7",
"7",
"8",
"0",
"2",
"0",
"8",
"9",
"5",
"7",
"7",
"3",
"5",
"2",
"7",
"1",
"5",
"0",
"7",
"2",
"5",
"3",
"7",
"1",
"5",
"9",
"8",
"8",
"1",
"9",
"1",
"8",
"1",
"8",
"2",
"8",
"4",
"3",
"6"
]
| [
"nonn",
"cons"
]
| 15 | 0 | 1 | [
"A091476",
"A363848",
"A363874",
"A363876"
]
| null | Tian Vlasic, Jun 25 2023 | 2023-09-03T10:19:20 | oeisdata/seq/A363/A363874.seq | 460dc039d2ca09a6e53e973faac262ab |
A363875 | Numbers k such that there is no odd number whose aliquot sequence contains k. | [
"2",
"28",
"52",
"88",
"96",
"120",
"124",
"146",
"162",
"188",
"206",
"208",
"210",
"216",
"238",
"246",
"248",
"250",
"262",
"268",
"276",
"288",
"290",
"292",
"298",
"304",
"306",
"322",
"324",
"326",
"336",
"342",
"362",
"372",
"388",
"396",
"406",
"408",
"412",
"426",
"428",
"430",
"438",
"448",
"452",
"472",
"474",
"478",
"486",
"494",
"498",
"508",
"516"
]
| [
"nonn"
]
| 15 | 1 | 1 | [
"A001065",
"A005114",
"A238382",
"A283152",
"A284147",
"A284156",
"A284187",
"A363875"
]
| null | Jinyuan Wang, Jun 25 2023 | 2023-07-21T15:29:21 | oeisdata/seq/A363/A363875.seq | f5fd7aeabc592dbe6dec0501edace0bf |
A363876 | Decimal expansion of the geometric mean of the isoperimetric quotient of ellipses when expressed in terms of their eccentricity. | [
"9",
"1",
"6",
"8",
"1",
"6",
"9",
"2",
"3",
"3",
"8",
"2",
"1",
"6",
"8",
"2",
"4",
"8",
"1",
"7",
"5",
"4",
"6",
"2",
"5",
"3",
"8",
"5",
"7",
"2",
"3",
"7",
"0",
"4",
"0",
"4",
"5",
"6",
"7",
"3",
"5",
"3",
"2",
"9",
"4",
"9",
"9",
"3",
"7",
"3",
"6",
"2",
"4",
"4",
"3",
"3",
"7",
"8",
"4",
"0",
"1",
"6",
"6",
"5",
"1",
"9",
"8",
"9",
"0",
"1",
"3",
"8",
"4",
"8",
"1",
"5",
"9",
"1",
"0",
"1",
"0",
"3",
"4",
"9",
"0",
"0",
"0",
"4"
]
| [
"nonn",
"cons"
]
| 14 | 0 | 1 | [
"A102753",
"A363848",
"A363874",
"A363876"
]
| null | Tian Vlasic, Jun 25 2023 | 2023-09-03T10:19:33 | oeisdata/seq/A363/A363876.seq | 4db4f2da3d48b4219e5be66d3c124c9a |
A363877 | Number of divisors of 7*n-2 of form 7*k+3. | [
"0",
"1",
"0",
"0",
"1",
"1",
"0",
"1",
"0",
"1",
"1",
"0",
"0",
"2",
"0",
"1",
"1",
"1",
"0",
"1",
"0",
"1",
"1",
"0",
"0",
"3",
"1",
"0",
"1",
"1",
"0",
"1",
"0",
"1",
"1",
"1",
"0",
"3",
"0",
"0",
"1",
"1",
"0",
"2",
"0",
"2",
"1",
"0",
"1",
"2",
"0",
"0",
"1",
"1",
"0",
"2",
"0",
"1",
"1",
"1",
"1",
"3",
"0",
"0",
"1",
"2",
"0",
"1",
"0",
"1",
"2",
"0",
"0",
"2",
"0",
"1",
"1",
"2",
"0",
"2",
"0",
"2",
"1",
"0",
"0",
"4",
"0",
"0",
"1",
"1",
"0",
"1",
"1",
"1",
"2",
"1",
"0",
"3",
"0",
"0"
]
| [
"nonn"
]
| 11 | 1 | 14 | [
"A353806",
"A363805",
"A363877"
]
| null | Seiichi Manyama, Jun 25 2023 | 2023-06-25T10:40:51 | oeisdata/seq/A363/A363877.seq | 1be427cb5b3a1a317fe5aa76ad4db32d |
A363878 | Number of divisors of 7*n-4 of form 7*k+2. | [
"0",
"1",
"0",
"1",
"0",
"1",
"1",
"1",
"0",
"1",
"0",
"2",
"0",
"1",
"0",
"2",
"1",
"1",
"0",
"1",
"0",
"2",
"0",
"1",
"1",
"1",
"1",
"2",
"0",
"1",
"0",
"2",
"0",
"2",
"0",
"1",
"1",
"1",
"0",
"2",
"0",
"2",
"1",
"2",
"0",
"1",
"1",
"1",
"0",
"1",
"0",
"4",
"0",
"1",
"0",
"1",
"1",
"1",
"0",
"2",
"1",
"2",
"1",
"2",
"0",
"1",
"1",
"1",
"0",
"2",
"0",
"2",
"0",
"1",
"0",
"3",
"1",
"1",
"1",
"1",
"0",
"3",
"0",
"1",
"0",
"2",
"1",
"3",
"0",
"1",
"0",
"3",
"0",
"1",
"0",
"1",
"2",
"1",
"0",
"2"
]
| [
"nonn"
]
| 11 | 1 | 12 | [
"A363795",
"A363807",
"A363878"
]
| null | Seiichi Manyama, Jun 25 2023 | 2023-06-25T10:40:36 | oeisdata/seq/A363/A363878.seq | 9c08ce85aece542350040ff508f9e672 |
A363879 | Number of divisors of 7*n-6 of form 7*k+2. | [
"0",
"1",
"0",
"1",
"0",
"2",
"0",
"1",
"0",
"2",
"0",
"1",
"0",
"2",
"1",
"1",
"0",
"2",
"0",
"1",
"0",
"2",
"0",
"2",
"0",
"3",
"0",
"1",
"0",
"2",
"0",
"1",
"1",
"2",
"0",
"1",
"1",
"2",
"0",
"1",
"0",
"4",
"0",
"1",
"0",
"2",
"0",
"2",
"0",
"2",
"1",
"1",
"0",
"2",
"0",
"1",
"0",
"3",
"1",
"3",
"0",
"2",
"0",
"1",
"0",
"2",
"0",
"1",
"1",
"3",
"0",
"1",
"0",
"3",
"0",
"1",
"0",
"4",
"0",
"1",
"1",
"2",
"1",
"1",
"0",
"2",
"1",
"1",
"0",
"3",
"0",
"2",
"0",
"2",
"0",
"3",
"0",
"2",
"0",
"1"
]
| [
"nonn"
]
| 11 | 1 | 6 | [
"A363795",
"A363806",
"A363879"
]
| null | Seiichi Manyama, Jun 25 2023 | 2023-06-25T10:40:21 | oeisdata/seq/A363/A363879.seq | 50c006288d5c4cba0696a323aa261c7b |
A363880 | Number of divisors of 7*n-6 of form 7*k+3. | [
"0",
"0",
"1",
"0",
"0",
"1",
"0",
"1",
"1",
"0",
"0",
"1",
"1",
"0",
"1",
"0",
"0",
"3",
"0",
"0",
"1",
"0",
"1",
"1",
"0",
"0",
"1",
"2",
"0",
"2",
"0",
"0",
"2",
"0",
"0",
"1",
"0",
"2",
"1",
"0",
"0",
"2",
"1",
"0",
"1",
"0",
"1",
"3",
"0",
"0",
"1",
"0",
"1",
"2",
"0",
"0",
"1",
"2",
"0",
"1",
"0",
"0",
"2",
"1",
"0",
"3",
"0",
"2",
"1",
"0",
"0",
"1",
"1",
"0",
"1",
"0",
"0",
"4",
"0",
"0",
"2",
"0",
"1",
"1",
"1",
"0",
"1",
"2",
"0",
"3",
"0",
"0",
"2",
"0",
"0",
"1",
"0",
"3",
"1",
"0"
]
| [
"nonn"
]
| 11 | 1 | 18 | [
"A363805",
"A363807",
"A363880"
]
| null | Seiichi Manyama, Jun 25 2023 | 2023-06-25T10:39:52 | oeisdata/seq/A363/A363880.seq | ea97d0866da23cbe7dec5336c3ae5cc2 |
A363881 | Number of partitions of [n] such that no block contains its size as an element. | [
"1",
"0",
"0",
"1",
"3",
"13",
"50",
"230",
"1110",
"5787",
"32335",
"191950",
"1206247",
"7997702",
"55733468",
"406952888",
"3105706421",
"24710573792",
"204547052598",
"1758110677909",
"15663244043627",
"144412976181189",
"1375896762258868",
"13528184875421816",
"137098357090429007",
"1430440534060723253"
]
| [
"nonn"
]
| 35 | 0 | 5 | [
"A000110",
"A326493",
"A363881",
"A364277"
]
| null | Alois P. Heinz, Jul 17 2023 | 2023-07-17T11:01:59 | oeisdata/seq/A363/A363881.seq | 48433d047c318c1e5246f77d985cb438 |
A363882 | Take 2 copies of Pascal's triangle. One copy has one inch between the terms of each row and the other copy has two inches between the terms of each row. Put one on top of the other so that the 1's at the very top of each copy coincide. Sequence is a triangle giving the differences between the overlapping terms. | [
"0",
"1",
"1",
"0",
"2",
"0",
"1",
"3",
"3",
"1",
"0",
"4",
"4",
"4",
"0",
"1",
"5",
"10",
"10",
"5",
"1",
"0",
"6",
"12",
"20",
"12",
"6",
"0",
"1",
"7",
"21",
"35",
"35",
"21",
"7",
"1",
"0",
"8",
"24",
"56",
"64",
"56",
"24",
"8",
"0",
"1",
"9",
"36",
"84",
"126",
"126",
"84",
"36",
"9",
"1",
"0",
"10",
"40",
"120",
"200",
"252",
"200",
"120",
"40",
"10",
"0",
"1",
"11",
"55",
"165",
"330",
"462",
"462",
"330",
"165",
"55",
"11",
"1"
]
| [
"tabl",
"nonn",
"easy"
]
| 33 | 0 | 5 | [
"A007318",
"A363882"
]
| null | J. Lowell, Jun 25 2023 | 2023-08-02T14:07:40 | oeisdata/seq/A363/A363882.seq | 1644a5758cb90d01abf61b08d06c9ef7 |
A363883 | a(n) is the least prime p such that p^n - 2*n is prime, or -1 if there is no such p. | [
"5",
"3",
"2",
"3",
"3",
"13",
"127",
"-1",
"11",
"3",
"41",
"5",
"3",
"-1",
"307",
"79",
"5",
"-1",
"211",
"-1",
"41",
"991",
"83",
"61",
"439",
"-1",
"17",
"-1",
"5",
"199",
"859",
"-1",
"149",
"5",
"431",
"251",
"883",
"-1",
"18353",
"31",
"2969",
"991",
"229",
"-1",
"7",
"137",
"5987",
"-1",
"1321",
"-1",
"2711",
"43",
"6653",
"1901",
"3",
"-1",
"587",
"197",
"7001",
"-1",
"1213",
"-1",
"367",
"839",
"1217",
"73",
"7",
"-1"
]
| [
"sign"
]
| 7 | 1 | 1 | [
"A363796",
"A363883"
]
| null | Robert Israel, Jun 25 2023 | 2023-07-07T05:47:25 | oeisdata/seq/A363/A363883.seq | 78d238cc6b99f2da8f68255f5dcabead |
A363884 | Number of connected bipartite graphs on 2n nodes with a distinguished partite set of size n and with a unimodular reduced adjacency matrix. | [
"1",
"1",
"5",
"41",
"777",
"38749",
"5552904",
"2358289931"
]
| [
"nonn",
"more",
"hard"
]
| 12 | 1 | 3 | [
"A306837",
"A363846",
"A363862",
"A363884"
]
| null | Max Alekseyev, Jun 25 2023 | 2023-07-04T09:51:18 | oeisdata/seq/A363/A363884.seq | 6238e183f15a41ba3b8b9dabc0aab73b |
A363885 | Number of divisors of 7*n-3 of form 7*k+2. | [
"1",
"0",
"2",
"0",
"2",
"0",
"2",
"0",
"2",
"0",
"2",
"1",
"2",
"0",
"2",
"0",
"2",
"0",
"2",
"0",
"4",
"0",
"2",
"0",
"2",
"0",
"2",
"0",
"2",
"2",
"2",
"0",
"2",
"0",
"2",
"0",
"3",
"0",
"4",
"0",
"2",
"0",
"2",
"0",
"2",
"0",
"2",
"2",
"2",
"0",
"2",
"0",
"4",
"0",
"2",
"0",
"4",
"0",
"2",
"0",
"2",
"0",
"2",
"0",
"2",
"2",
"2",
"0",
"4",
"0",
"2",
"0",
"2",
"0",
"4",
"1",
"2",
"0",
"2",
"0",
"2",
"0",
"2",
"2",
"4",
"0",
"2",
"0",
"2",
"0",
"2",
"0",
"4",
"0",
"2",
"0",
"2",
"0",
"4",
"0"
]
| [
"nonn"
]
| 13 | 1 | 3 | [
"A363795",
"A363850",
"A363855",
"A363885",
"A363886"
]
| null | Seiichi Manyama, Jun 26 2023 | 2023-06-26T06:33:22 | oeisdata/seq/A363/A363885.seq | 30c5cdd8b08bdbc79abcd1205a601b33 |
A363886 | Number of divisors of 7*n-3 of form 7*k+5. | [
"0",
"0",
"0",
"1",
"0",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"0",
"2",
"0",
"1",
"0",
"0",
"2",
"0",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"2",
"2",
"0",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"0",
"2",
"2",
"0",
"0",
"0",
"2",
"0",
"0",
"1",
"0",
"2",
"0",
"0",
"2",
"0",
"2",
"0",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"0",
"4",
"0",
"2",
"0",
"0",
"2",
"0",
"0",
"0",
"0",
"2",
"0",
"2",
"0",
"0",
"2",
"0",
"0",
"0",
"0",
"2",
"2",
"0",
"0",
"2",
"2",
"0",
"0",
"1",
"0",
"2",
"0"
]
| [
"nonn"
]
| 12 | 1 | 9 | [
"A363807",
"A363850",
"A363855",
"A363885",
"A363886"
]
| null | Seiichi Manyama, Jun 26 2023 | 2023-06-26T06:33:10 | oeisdata/seq/A363/A363886.seq | 76ca8635d88b3bf6c90df35fe76264a3 |
A363887 | Number of divisors of 7*n-5 of form 7*k+3. | [
"0",
"1",
"0",
"0",
"2",
"0",
"0",
"2",
"0",
"0",
"2",
"0",
"0",
"2",
"1",
"0",
"2",
"0",
"0",
"2",
"0",
"0",
"2",
"0",
"2",
"2",
"0",
"0",
"2",
"0",
"0",
"2",
"0",
"0",
"4",
"0",
"0",
"2",
"0",
"0",
"2",
"1",
"0",
"2",
"2",
"0",
"2",
"0",
"0",
"2",
"0",
"0",
"2",
"0",
"2",
"2",
"0",
"0",
"4",
"0",
"0",
"2",
"0",
"0",
"4",
"0",
"0",
"2",
"0",
"0",
"2",
"0",
"0",
"2",
"2",
"2",
"2",
"0",
"0",
"2",
"0",
"0",
"3",
"0",
"2",
"2",
"0",
"0",
"2",
"0",
"0",
"2",
"2",
"0",
"4",
"0",
"0",
"2",
"0",
"0"
]
| [
"nonn"
]
| 11 | 1 | 5 | [
"A363805",
"A363852",
"A363857",
"A363887",
"A363888"
]
| null | Seiichi Manyama, Jun 26 2023 | 2023-06-26T06:33:16 | oeisdata/seq/A363/A363887.seq | 6f0875e27ddf16a892836205be87b1e7 |
A363888 | Number of divisors of 7*n-5 of form 7*k+4. | [
"0",
"0",
"1",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"2",
"0",
"0",
"1",
"2",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"2",
"0",
"2",
"0",
"2",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"2",
"2",
"0",
"0",
"2",
"0",
"0",
"0",
"3",
"0",
"0",
"0",
"4",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"2",
"0",
"0",
"2",
"2",
"0",
"2",
"0",
"2",
"0",
"0",
"0",
"2",
"0",
"2",
"0",
"2",
"0",
"0",
"0",
"2",
"0",
"0",
"0",
"4",
"2",
"0",
"0",
"2",
"0",
"0",
"1",
"2",
"0",
"0",
"0",
"4",
"0",
"0",
"0",
"2",
"0"
]
| [
"nonn"
]
| 11 | 1 | 7 | [
"A363806",
"A363852",
"A363857",
"A363887",
"A363888"
]
| null | Seiichi Manyama, Jun 26 2023 | 2023-06-26T06:33:45 | oeisdata/seq/A363/A363888.seq | 5f849e71512fec0f51223e338e117566 |
A363889 | Sum of divisors of 3*n-2 of form 3*k+1. | [
"1",
"5",
"8",
"11",
"14",
"21",
"20",
"23",
"26",
"40",
"32",
"35",
"38",
"55",
"44",
"47",
"57",
"70",
"56",
"59",
"62",
"85",
"68",
"88",
"74",
"100",
"80",
"83",
"86",
"115",
"112",
"95",
"98",
"140",
"104",
"107",
"110",
"168",
"116",
"119",
"122",
"160",
"128",
"154",
"160",
"175",
"140",
"143",
"146",
"190",
"152",
"184",
"158",
"231",
"164",
"167",
"183",
"220",
"208",
"179",
"182",
"235",
"188"
]
| [
"nonn"
]
| 16 | 1 | 2 | [
"A078181",
"A359212",
"A363514",
"A363889",
"A363890",
"A363891"
]
| null | Seiichi Manyama, Jun 26 2023 | 2023-06-27T07:05:37 | oeisdata/seq/A363/A363889.seq | 6552cf3f83e1759f985da257c4202cef |
A363890 | Sum of divisors of 3*n-1 of form 3*k+2. | [
"2",
"5",
"10",
"11",
"16",
"17",
"27",
"23",
"28",
"29",
"42",
"40",
"40",
"41",
"57",
"47",
"57",
"53",
"80",
"59",
"64",
"70",
"87",
"71",
"76",
"88",
"115",
"83",
"88",
"89",
"117",
"100",
"114",
"101",
"140",
"107",
"128",
"113",
"147",
"136",
"124",
"130",
"170",
"131",
"136",
"137",
"216",
"154",
"148",
"149",
"200",
"160",
"160",
"184",
"207",
"167",
"194",
"173",
"241",
"179",
"224",
"190",
"237"
]
| [
"nonn"
]
| 18 | 1 | 1 | [
"A078182",
"A359211",
"A363514",
"A363889",
"A363890",
"A363891"
]
| null | Seiichi Manyama, Jun 26 2023 | 2023-06-27T09:17:03 | oeisdata/seq/A363/A363890.seq | 5ae43edb03e1bb0976ae9afac4421325 |
A363891 | Sum of divisors of 3*n-2 of form 3*k+2. | [
"0",
"2",
"0",
"7",
"0",
"10",
"0",
"13",
"5",
"16",
"0",
"19",
"0",
"35",
"0",
"25",
"0",
"28",
"16",
"31",
"0",
"42",
"0",
"56",
"0",
"40",
"0",
"43",
"22",
"65",
"0",
"49",
"0",
"77",
"0",
"55",
"0",
"80",
"28",
"61",
"11",
"64",
"0",
"98",
"0",
"95",
"0",
"73",
"34",
"76",
"0",
"104",
"0",
"147",
"0",
"85",
"0",
"88",
"40",
"91",
"0",
"125",
"28",
"140",
"0",
"114",
"0",
"103",
"46",
"140",
"0",
"109",
"0",
"192",
"0",
"115",
"0"
]
| [
"nonn"
]
| 20 | 1 | 2 | [
"A078182",
"A359239",
"A363514",
"A363889",
"A363890",
"A363891"
]
| null | Seiichi Manyama, Jun 26 2023 | 2023-06-27T09:16:53 | oeisdata/seq/A363/A363891.seq | a55d1ff5a5c3a59aae855c5ade168add |
A363892 | Maximum likelihood degree of X(3, n). | [
"1",
"2",
"26",
"1272",
"188112",
"74570400"
]
| [
"nonn",
"more"
]
| 4 | 4 | 2 | null | null | Michel Marcus, Jun 26 2023 | 2023-06-26T14:46:34 | oeisdata/seq/A363/A363892.seq | 5237da9eb80fc176ad4e6ffca42fe848 |
A363893 | Number of weakly connected components of an addsub configuration graph with respect to integers mod n over a path with two vertices. | [
"1",
"2",
"1",
"4",
"2",
"3",
"1",
"5",
"4",
"4",
"2",
"6",
"3",
"11",
"1",
"11",
"5",
"6",
"4",
"12",
"4",
"7",
"2",
"13",
"6",
"14",
"3",
"10",
"11",
"25",
"1",
"29",
"11",
"18",
"5",
"12",
"6",
"21",
"4",
"25",
"12",
"34",
"4",
"32",
"7",
"13",
"2",
"17",
"13",
"48",
"6",
"16",
"14",
"25",
"3",
"47",
"10",
"16",
"11",
"18",
"25",
"87",
"1",
"95",
"29",
"18",
"11",
"32",
"18",
"19",
"5"
]
| [
"nonn"
]
| 24 | 2 | 2 | [
"A340631",
"A346197",
"A346401",
"A363893"
]
| null | Patrick G. Cesarz, Eugene Fiorini, Charles Gong, Kyle A. Kelley, Philip Thomas, and Andrew Woldar, Jun 26 2023 | 2023-09-27T15:52:39 | oeisdata/seq/A363/A363893.seq | 7f28fbad49d6a31759ed734a2fab26f5 |
A363894 | Number of weakly connected components of a halved addsub configuration graph with respect to integers mod n over a path with two vertices. | [
"1",
"2",
"1",
"8",
"2",
"3",
"1",
"5",
"8",
"4",
"2",
"18",
"3",
"33",
"1",
"19",
"5",
"6",
"8",
"20",
"4",
"7",
"2",
"39",
"18",
"14",
"3",
"32",
"33",
"25",
"1",
"29",
"19",
"58",
"5",
"42",
"6",
"75",
"8",
"91",
"20",
"34",
"4",
"108",
"7",
"13",
"2",
"17",
"39",
"164",
"18",
"58",
"14",
"83",
"3",
"47",
"32",
"16",
"33",
"66",
"25",
"167",
"1",
"365",
"29",
"18",
"19",
"56",
"58",
"19",
"5"
]
| [
"nonn"
]
| 20 | 2 | 2 | [
"A340631",
"A346197",
"A346401",
"A363893",
"A363894"
]
| null | Patrick G. Cesarz, Eugene Fiorini, Charles Gong, Kyle A. Kelley, Philip Thomas, and Andrew Woldar, Jul 23 2023 | 2023-09-27T15:53:02 | oeisdata/seq/A363/A363894.seq | 85abf44da1bb5866605756a573303726 |
A363895 | Floor of the average of the distinct prime factors of n. | [
"2",
"3",
"2",
"5",
"2",
"7",
"2",
"3",
"3",
"11",
"2",
"13",
"4",
"4",
"2",
"17",
"2",
"19",
"3",
"5",
"6",
"23",
"2",
"5",
"7",
"3",
"4",
"29",
"3",
"31",
"2",
"7",
"9",
"6",
"2",
"37",
"10",
"8",
"3",
"41",
"4",
"43",
"6",
"4",
"12",
"47",
"2",
"7",
"3",
"10",
"7",
"53",
"2",
"8",
"4",
"11",
"15",
"59",
"3",
"61",
"16",
"5",
"2",
"9",
"5",
"67",
"9",
"13",
"4",
"71",
"2",
"73",
"19",
"4",
"10",
"9",
"6",
"79"
]
| [
"easy",
"nonn"
]
| 48 | 2 | 1 | [
"A001221",
"A008472",
"A078174",
"A126594",
"A323171",
"A323172",
"A363895"
]
| null | Darío Clavijo, Jun 26 2023 | 2023-07-01T09:31:27 | oeisdata/seq/A363/A363895.seq | 2cf3096d0e0c9533dbd5b0b9b435c099 |
A363896 | Numbers k such that the sum of primes dividing k (with repetition) is equal to Euler's totient function of k. | [
"9",
"15",
"16",
"42"
]
| [
"nonn",
"more"
]
| 51 | 1 | 1 | [
"A000010",
"A001414",
"A173327",
"A237798",
"A257048",
"A280936",
"A363896"
]
| null | Darío Clavijo, Jun 26 2023 | 2023-08-07T14:54:10 | oeisdata/seq/A363/A363896.seq | eeb970b4898f03505bde4e6b9e4c3ddd |
A363897 | Expansion of Sum_{k>0} k * x^k / (1 - x^(5*k)). | [
"1",
"2",
"3",
"4",
"5",
"7",
"7",
"8",
"9",
"10",
"12",
"14",
"13",
"14",
"15",
"17",
"17",
"21",
"19",
"20",
"22",
"24",
"23",
"28",
"25",
"27",
"27",
"28",
"29",
"35",
"32",
"34",
"36",
"34",
"35",
"43",
"37",
"38",
"39",
"40",
"42",
"51",
"43",
"48",
"45",
"47",
"47",
"59",
"49",
"50",
"52",
"54",
"53",
"63",
"60",
"57",
"57",
"58",
"59",
"70",
"62",
"64",
"66",
"68",
"65",
"84",
"67",
"68",
"69",
"70",
"72",
"86",
"73",
"74",
"75",
"77",
"84",
"94"
]
| [
"nonn"
]
| 18 | 1 | 2 | [
"A001876",
"A002131",
"A050460",
"A284097",
"A326399",
"A363897",
"A363898",
"A363899",
"A363900"
]
| null | Seiichi Manyama, Jun 27 2023 | 2023-06-29T11:50:29 | oeisdata/seq/A363/A363897.seq | 5cc9576c3cb76b8d0d15220e851777c2 |
A363898 | Expansion of Sum_{k>0} k * x^(2*k) / (1 - x^(5*k)). | [
"0",
"1",
"0",
"2",
"0",
"3",
"1",
"4",
"0",
"5",
"0",
"7",
"0",
"9",
"0",
"8",
"1",
"9",
"0",
"10",
"3",
"12",
"0",
"14",
"0",
"13",
"1",
"18",
"0",
"15",
"0",
"17",
"0",
"19",
"5",
"21",
"1",
"19",
"0",
"20",
"0",
"28",
"0",
"24",
"0",
"23",
"1",
"28",
"7",
"25",
"3",
"27",
"0",
"29",
"0",
"36",
"1",
"29",
"0",
"35",
"0",
"32",
"9",
"34",
"0",
"36",
"1",
"38",
"0",
"45",
"0",
"43",
"0",
"39",
"0",
"38",
"12",
"39",
"0",
"40",
"3",
"42",
"0",
"63",
"5",
"43",
"1"
]
| [
"nonn"
]
| 18 | 1 | 4 | [
"A001877",
"A284280",
"A363897",
"A363898",
"A363899",
"A363900"
]
| null | Seiichi Manyama, Jun 27 2023 | 2023-06-29T13:22:00 | oeisdata/seq/A363/A363898.seq | 0a224de60dc3de80c4764b2321a855e3 |
A363899 | Expansion of Sum_{k>0} k * x^(3*k) / (1 - x^(5*k)). | [
"0",
"0",
"1",
"0",
"0",
"2",
"0",
"1",
"3",
"0",
"0",
"4",
"1",
"0",
"5",
"2",
"0",
"7",
"0",
"0",
"7",
"0",
"1",
"11",
"0",
"2",
"9",
"1",
"0",
"10",
"0",
"4",
"12",
"0",
"0",
"14",
"0",
"1",
"16",
"5",
"0",
"14",
"1",
"0",
"15",
"2",
"0",
"23",
"0",
"0",
"17",
"4",
"1",
"21",
"0",
"9",
"19",
"1",
"0",
"20",
"0",
"0",
"22",
"8",
"5",
"24",
"0",
"1",
"26",
"0",
"0",
"37",
"1",
"0",
"25",
"2",
"0",
"33",
"0",
"10",
"27",
"0",
"1",
"31",
"0",
"2",
"29",
"12",
"0"
]
| [
"nonn"
]
| 18 | 1 | 6 | [
"A001878",
"A284281",
"A363897",
"A363898",
"A363899",
"A363900"
]
| null | Seiichi Manyama, Jun 27 2023 | 2023-06-29T13:22:03 | oeisdata/seq/A363/A363899.seq | 95c0a8edbe9b6593618f22f848cf748f |
A363900 | Expansion of Sum_{k>0} k * x^(4*k) / (1 - x^(5*k)). | [
"0",
"0",
"0",
"1",
"0",
"0",
"0",
"2",
"1",
"0",
"0",
"3",
"0",
"1",
"0",
"4",
"0",
"2",
"1",
"5",
"0",
"0",
"0",
"7",
"0",
"0",
"3",
"9",
"1",
"0",
"0",
"8",
"0",
"1",
"0",
"13",
"0",
"2",
"1",
"10",
"0",
"3",
"0",
"12",
"5",
"0",
"0",
"14",
"1",
"0",
"0",
"13",
"0",
"7",
"0",
"18",
"3",
"2",
"1",
"15",
"0",
"0",
"7",
"17",
"0",
"0",
"0",
"19",
"1",
"5",
"0",
"29",
"0",
"1",
"0",
"23",
"0",
"2",
"1",
"20",
"9",
"0",
"0",
"28",
"0",
"0",
"3",
"24",
"1",
"10",
"0",
"23",
"0",
"1",
"5",
"28",
"0"
]
| [
"nonn"
]
| 18 | 1 | 8 | [
"A001899",
"A284103",
"A363897",
"A363898",
"A363899",
"A363900"
]
| null | Seiichi Manyama, Jun 27 2023 | 2023-06-29T11:22:43 | oeisdata/seq/A363/A363900.seq | 50702ececf0f86c9652977691c25ef3b |
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