id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A222602
[ 1, 1, 3, 0, 2, 5, 13, 55, 21, 987, 8, 89, 233, 377, 34, 1597, 28657, 6765, 144, 610, 17711, 196418, 514229, 2584, 4181, 10946, 121393, 317811, 3524578, 46368, 1346269, 1836311903, 75025, 5702887, 24157817, 102334155, 165580141, 832040, 1493...
[ "nonn", "tabf" ]
A229956
[ 1, 17, 1, 1, 65, 33, 33, 17, 1, 145, 73, 1, 73, 1105, 1, 1, 257, 129, 24465, 65, 129, 97, 2737, 33, 1, 401, 201, 57889, 353, 1, 32929, 161, 105, 609, 41, 1, 577, 1, 193, 145, 481, 97, 142809601, 28985, 2497, 337, 385, 1, ...
[ "nonn" ]
A183199
[ 3, 6, 11, 18, 27, 38, 51, 66, 83, 102, 123, 146, 171, 198, 227, 258, 291, 326, 363, 402, 443, 486, 531, 578, 627, 678, 731, 786, 843, 902, 963, 1026, 1091, 1158, 1227, 1298, 1371, 1446, 1523, 1602, 1683, 1766, 1851, 1938, 2027, ...
[ "nonn" ]
A344853
[ 0, 0, 0, 2, 2, 2, 4, 4, 4, 8, 8, 8, 10, 10, 10, 12, 12, 12, 16, 16, 16, 18, 18, 18, 20, 20, 20, 26, 26, 26, 28, 28, 28, 30, 30, 30, 34, 34, 34, 36, 36, 36, 38, 38, 38, 42, 42, 42, 44, 44, 44, 46, 46, 46, 52, ...
[ "base", "easy", "nonn" ]
A304381
[ 32, 168, 412, 764, 1224, 1792, 2468, 3252, 4144, 5144, 6252, 7468, 8792, 10224, 11764, 13412, 15168, 17032, 19004, 21084, 23272, 25568, 27972, 30484, 33104, 35832, 38668, 41612, 44664, 47824, 51092, 54468, 57952, 61544, 65244, 69052, 72968, 7...
[ "nonn", "easy" ]
A110720
[ 5, 23, 353637, 18192021, 7576777879, 67891011, 71727374757677, 1.212121312141215e+31, 5678910111213, 1.1941195119611971e+39 ]
[ "base", "hard", "nonn" ]
A256427
[ 3, 2, 1, 2, 3, 3, 3, 2, 2, 2, 3, 5, 5, 3, 2, 1, 2, 3, 3, 3, 3, 2, 2, 3, 2, 1, 3, 2, 1, 2, 3, 3, 3, 2, 2, 2, 3, 5, 5, 3, 2, 1, 2, 3, 3, 3, 3, 2, 2, 3, 2, 1, 3, 2, 1, 2, 3, 3, 3, 2, 2, 2, 3, 5...
[ "nonn" ]
A045898
[ 1, 2, 1, 3, 1, 2, 4, 5, 1, 2, 1, 3, 1, 5, 4, 3, 1, 2, 1, 3, 1, 2, 4, 5, 1, 2, 4, 3, 1, 5, 4, 5, 1, 2, 1, 3, 1, 2, 4, 5, 1, 2, 1, 3, 1, 5, 4, 3, 1, 2, 1, 3, 1, 5, 4, 5, 1, 2, 4, 3, 1, 5, 4, 3...
[ "nonn" ]
A014825
[ 1, 6, 27, 112, 453, 1818, 7279, 29124, 116505, 466030, 1864131, 7456536, 29826157, 119304642, 477218583, 1908874348, 7635497409, 30541989654, 122167958635, 488671834560, 1954687338261, 7818749353066 ]
[ "nonn", "easy" ]
A037821
[ 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 0...
[ "nonn", "base" ]
A117583
[ 0, 1, 3, 7, 9, 16, 22, 29, 35, 39, 50, 57, 68, 84, 100, 112, 127, 151, 167 ]
[ "nonn", "hard", "more" ]
A380395
[ 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2...
[ "nonn", "easy", "mult" ]
A128427
[ 5, 6, 7, 8, 10, 11, 13, 14, 15, 17, 18, 20, 21, 23, 24, 26, 27, 28, 30, 31, 33, 34, 36, 37, 39, 40, 41, 43, 44, 46, 47, 49, 50, 51, 53, 54, 56, 57, 59, 60, 62, 63, 64, 66, 67, 69, 70, 72, 73, 75, 76, 77, 79, 80...
[ "nonn" ]
A214884
[ 0, -2, 1, -9, 15, -50, 118, -324, 831, -2195, 5725, -15012, 39276, -102854, 269245, -704925, 1845483, -4831574, 12649186, -33116040, 86698875, -226980647, 594243001, -1555748424, 4073002200, -10663258250, 27916772473, -73087059249, 191344405191 ]
[ "sign", "easy" ]
A187395
[ 7, 14, 21, 28, 35, 42, 50, 57, 64, 71, 78, 85, 93, 100, 107, 114, 121, 128, 136, 143, 150, 157, 164, 171, 179, 186, 193, 200, 207, 214, 222, 229, 236, 243, 250, 257, 265, 272, 279, 286, 293, 300, 307, 315, 322, 329, 336, 3...
[ "nonn" ]
A327098
[ 1, 2, 8, 20, 21, 22, 23, 28, 29, 30, 31, 36, 37, 38, 39, 44, 45, 46, 47, 48, 49, 50, 51, 56, 57, 58, 59, 128, 260, 261, 262, 263, 272, 273, 276, 277, 278, 279, 280, 281, 284, 285, 286, 287, 292, 293, 294, 295, 300, 301...
[ "nonn" ]
A244107
[ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16796, 58786, 149226, 326876, 653752, 1225785, 2187185, 3749460, 6216210, 10015005, 7661738955, 54722507580, 395948080320, 1833749903700, 8617567868184, 32552623293036, 125052931581776, 418634577697116, 1427554615084576 ]
[ "nonn" ]
A054648
[ 360, 13230, 137760, 835380, 3679200, 13056120, 39584160, 106383420, 259819560, 586936350, 1242521280, 2489618040, 4758324480, 8728907040, 15446635200, 26477304840, 44114190120, 71649152190, 113722852320, 176771479500, 269590120800, 404035889400, 595897192800 ]
[ "nonn" ]
A031316
[ 2, 9, 19, 26, 28, 29, 30, 32, 34, 39, 49, 59, 69, 79, 89, 101, 116, 131, 142, 145, 146, 148, 151, 154, 161, 176, 191, 206, 221, 236, 251, 266, 281, 292, 295, 296, 298, 301, 304, 311, 326, 341, 356, 371, 386, 396, 399, 401,...
[ "nonn" ]
A017834
[ 1, 0, 0, 0, 1, 1, 1, 1, 2, 3, 4, 5, 7, 9, 13, 18, 25, 33, 45, 62, 86, 117, 159, 217, 298, 408, 558, 762, 1042, 1425, 1950, 2667, 3647, 4986, 6819, 9327, 12757, 17445, 23856, 32625, 44620, 61023, 83454, 114129 ]
[ "nonn", "easy" ]
A313320
[ 1, 4, 9, 16, 18, 23, 27, 34, 36, 47, 46, 50, 56, 63, 70, 70, 73, 79, 82, 96, 91, 110, 90, 116, 109, 128, 120, 125, 129, 134, 148, 147, 158, 146, 164, 165, 178, 174, 175, 181, 184, 204, 195, 218, 186, 228, 209, 238, 220, ...
[ "nonn" ]
A251600
[ 1, 0, 2, 5, 16, 20, 18, 43, 162, 190, 532, 916, 564, 3314, 3908, 10499, 30789, 53828, 153384, 62946, 278737, 364195, 629686, 3768344, 7827416, 9496221, 23159959, 184328920, 68035462, 92566977, 457932094, 370110663, 648634305, 4032924162, 7841376455...
[ "nonn" ]
A355623
[ 1, 29, 185, 1745, 16825, 317899, 2474777, 29803639, 134433224, 2925310919, 14459352454, 150413935274, 1841255744875, 15715280017394, 298973571352939, 2949399321185629, 16854427454794924, 303090351024681300, 3130972820121426400, 11582111864577268000, 140797308252987720000 ]
[ "nonn", "base", "frac" ]
A230763
[ 6, 1, 8, 5, 2, 7, 4, 10, 1, 2, 2, 3, 7, 10, 2, 1, 2, 6, 19, 8, 10, 2, 2, 2, 2, 2, 20, 2, 10, 2, 4, 7, 11, 8, 2, 2, 2, 2, 5, 10, 2, 4, 7, 1, 2, 5, 2, 2, 2, 10, 2, 5, 10, 11, 2, 8, 2, 1, 10, 1, 6, ...
[ "nonn", "word" ]
A099680
[ 1, 1, 21, 2689, 1162525, 1213162861, 2531581232565 ]
[ "nonn" ]
A229761
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 252, 676, 777, 838, 868, 919, 929, 939, 15451, 15851, 25152, 25252, 25352, 25452, 25552, 25652, 25752, 25852, 25952, 29592, 36563, 51415, 51815, 52125, 52225, 52325, 52425, 52525, 52625, 52725, 52825, 52925, ...
[ "nonn", "easy", "base" ]
A307912
[ 0, 0, 1, 1, 3, 3, 4, 5, 5, 5, 7, 7, 9, 10, 10, 10, 12, 13, 14, 15, 15, 15, 17, 17, 18, 19, 19, 20, 22, 22, 23, 24, 25, 25, 26, 26, 27, 28, 29, 29, 31, 31, 33, 34, 34, 35, 37, 38, 38, 39, 39, 39, 41, 41, 41, ...
[ "nonn", "easy" ]
A065828
[ 1, 1, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0...
[ "nonn", "base" ]
A042668
[ 29, 59, 88, 147, 823, 970, 13433, 14403, 85448, 99851, 185299, 470449, 27471341, 55413131, 82884472, 138297603, 774372487, 912670090, 12639083657, 13551753747, 80397852392, 93949606139, 174347458531, 442644523201, 25847729804189, 52138104131579 ]
[ "nonn", "frac", "easy" ]
A249609
[ 0, 0, 0, 1, 2, 1, 1, 0, 0, 1, 1, 3, 1, 2, 7, 1, 2, 1, 1, 3, 1, 2, 2, 1, 1, 2, 2, 1, 2, 1, 1, 4, 5, 1, 1, 3, 1, 3, 2, 1, 1, 3, 4, 1, 2, 1, 1, 6, 1, 2, 6, 1, 2, 1, 1, 3, 3, 1, 1, 2, 1, 2, 6, 1...
[ "nonn", "base" ]
A100130
[ 1, -24, 300, -2624, 18126, -105504, 538296, -2471424, 10400997, -40674128, 149343012, -519045888, 1718732998, -5451292992, 16633756008, -49010118656, 139877936370, -387749049720, 1046413709980, -2754808758144, 7087483527072 ]
[ "sign" ]
A152590
[ 3, 7, 0, 0, 4, 3, 9, 7, 1, 8, 1, 4, 1, 0, 9, 2, 1, 6, 0, 3, 9, 6, 8, 1, 2, 6, 5, 4, 2, 5, 6, 6, 9, 4, 7, 3, 3, 6, 2, 8, 4, 3, 6, 4, 0, 1, 7, 9, 1, 0, 3, 7, 3, 6, 9, 5, 3, 8, 4, 6, 3, 5, 2, 5...
[ "nonn", "cons" ]
A019413
[ 2, 17, 19, 37, 43, 47, 59, 61, 83, 107, 109, 127, 137, 149, 157, 167, 173, 179, 181, 191, 193, 197, 211, 227, 257, 263, 269, 271, 281, 313, 317, 347, 383, 401, 443, 449, 479, 541, 547, 557, 571, 587, 599, 601, 613, 617, 619,...
[ "nonn" ]
A159736
[ 12, 126, 1176, 10290, 86436, 705894, 5647152, 44471322, 345888060, 2663338062, 20338217928, 154231485954, 1162668124884, 8720010936630, 65109414993504, 484251274014186, 3589156501516908, 26519878594541600, 195409631749253900 ]
[ "nonn" ]
A342130
[ 0, 1, 2, 4, 8, 16, 27, 32, 54, 64, 108, 128, 139, 165, 256, 512, 815, 1024, 1630, 2048, 2821, 3167, 3693, 3941, 4096, 4747, 5642, 6334, 7737, 7881, 8192, 9494, 10837, 11284, 12479, 13363, 16384, 18988, 22568, 24669, 24958, 27945, 31...
[ "nonn", "base" ]
A196463
[ 1, 4, 4, 7, 1, 5, 9, 3, 6, 6, 5, 1, 7, 2, 5, 9, 5, 1, 9, 2, 9, 1, 0, 9, 5, 3, 4, 3, 1, 9, 4, 4, 9, 2, 0, 1, 9, 9, 7, 3, 1, 8, 2, 8, 6, 8, 8, 5, 8, 0, 0, 7, 9, 6, 8, 0, 1, 7, 0, 0, 2, 6, 0, 6...
[ "nonn", "cons" ]
A105570
[ 0, 0, 0, 0, 4, 0, 0, 0, 8, 9, 0, 0, 12, 0, 0, 0, 16, 0, 18, 0, 20, 0, 0, 0, 24, 25, 0, 27, 28, 0, 0, 0, 32, 0, 0, 0, 36, 0, 0, 0, 40, 0, 0, 0, 44, 45, 0, 0, 48, 49, 50, 0, 52, 0, 54, 0, 56, 0, 0, 0,...
[ "easy", "nonn" ]
A188846
[ 12, 144, 908, 5711, 32204, 181557, 1001368, 5521489, 30306759, 166323490, 911899467, 4999341631, 27402344925, 150194353126, 823189068247, 4511728088822, 24727593668449, 135525199872089, 742775009335794 ]
[ "nonn" ]
A342164
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 15, 17, 19, 16, 23, 18, 27, 30, 27, 22, 27, 24, 39, 41, 44, 28, 47, 50, 41, 52, 56, 50, 56, 56, 56, 50, 56, 53, 72, 42, 75, 54, 80, 80, 76, 83, 80, 85, 92, 90, 80, 54...
[ "nonn", "base" ]
A148833
[ 1, 1, 3, 8, 27, 88, 330, 1233, 4757, 19087, 77084, 318057, 1332943, 5633800, 24135510, 104270601, 453822577, 1992313735, 8796237670, 39076873799, 174584332753, 783445597358, 3532945065726, 15995372227192, 72689772282113, 331560783129859, 1517023330197527, 696286...
[ "nonn", "walk" ]
A217133
[ 1, 95, 335, 3155, 28651, 91135 ]
[ "nonn", "more" ]
A049442
[ 14353, 18572, 22876, 25212, 26799, 27803, 28752, 30510, 32011, 32423, 32515, 35137, 37055 ]
[ "fini", "full", "nonn", "base" ]
A075340
[ 1, 2, 9, 19, 20, 41, 42, 43, 44, 89, 90, 181, 182, 547, 548, 1097, 1098, 7687, 7688, 15377, 15378, 30757, 30758, 276823, 276824, 553649, 553650, 2768251, 2768252, 8304757, 8304758, 99657097, 99657098, 199314197, 199314198, 3189027169 ]
[ "nonn" ]
A087023
[ 3, 2, 4, 2, 2, 2, 2, 3, 3, 5, 2, 2, 2, 2, 2, 4, 3, 3, 3, 2, 2, 2, 2, 3, 3, 3, 5, 2, 2, 2, 5, 2, 7, 2, 3, 2, 2, 5, 3, 4, 2, 3, 2, 2, 2, 3, 3, 2, 6, 2, 3 ]
[ "nonn", "more", "hard" ]
A182410
[ 1, 1, 2, 2, 4, 4, 7, 7, 11, 11, 15, 17, 24, 25, 31, 34, 45, 48, 59, 64, 77, 83, 99, 109, 131, 138, 164, 175, 204, 222, 252, 274, 317, 332, 385, 403, 466, 500, 563, 592, 674, 720, 799, 854, 957, 994, 1131, 1196, 1328, 1...
[ "nonn" ]
A251107
[ 147, 810, 3616, 15281, 67518, 304870, 1369052, 6118942, 27356256, 122402144, 547700666, 2450461705, 10963429165, 49051483677, 219461893981, 981894966609, 4393096675995, 19655164658898, 87939229945039, 393449138915943 ]
[ "nonn" ]
A324385
[ 0, 1, 1, 1, 1, 5, 1, 1, 7, 1, 1, 1, 1, 1, 1, 11, 17, 1, 1, 1, 13, 11, 11, 19, 17, 13, 1, 23, 1, 1, 13, 17, 17, 13, 17, 1, 17, 1, 1, 23, 17, 17, 17, 1, 19, 83, 37, 23, 17, 23, 1, 43, 19, 1, 19, 43, 19, 3...
[ "nonn" ]
A105436
[ 2, 3, 2, 2, 13, 3, 29, 7, 17, 17, 3, 3, 2, 3, 197, 5, 13, 173, 2, 13, 53, 73, 199, 2, 23, 73, 599, 239, 547, 59, 409, 1009, 1277, 19, 3, 383, 137, 13, 653, 103, 139, 227, 19, 127, 359, 193, 1123, 3, 97, 1447, 839, ...
[ "nonn", "base" ]
A229962
[ 2, 1, 1, 9, 8, 5, 2, 8, 0, 0, 0, 0, 3, 8, 3, 2, 3, 8, 8, 7, 3, 9, 4, 4, 1, 0, 8, 5, 9, 0, 8, 5, 4, 7, 4, 7, 2, 0, 6, 1, 3, 9, 5, 2, 7, 8, 8, 6, 3, 6, 2, 4, 6, 9, 6, 9, 8, 0, 0, 0, 3, 4, 3, 4...
[ "nonn", "cons" ]
A265584
[ 1, 1, 2, 0, 4, 3, 0, 6, 9, 4, 0, 10, 24, 16, 5, 0, 16, 66, 60, 25, 6, 0, 26, 180, 228, 120, 36, 7, 0, 42, 492, 864, 580, 210, 49, 8, 0, 68, 1344, 3276, 2800, 1230, 336, 64, 9, 0, 110, 3672, 12420, 13520, 7200, 2310...
[ "nonn", "tabl", "easy" ]
A285985
[ 0, 9, 225, 14400, 278784, 16769025, 322382025, 19356600384, 372051201600, 22337675375625, 429347532814209, 25777663981977600, 495466706924481600, 29747402099825120000, 571768151330225300000, 3.432847625240639e+22, 6.598199511985018e+23, 3.961503184810833e+25, 7.614316519159432e+2...
[ "nonn", "easy" ]
A080227
[ 0, 0, 1, 3, 13, 65, 391, 2737, 21897, 197073, 1970731, 21678041, 260136493, 3381774409, 47344841727, 710172625905, 11362762014481, 193166954246177, 3477005176431187, 66063098352192550, 1321261967043851000, 27746501307920870000, 610423028774259100000 ]
[ "easy", "nonn" ]
A268419
[ 1, 2, 5, 14, 44, 147, 505, 1750, 6065, 20950, 72052, 246715, 841345, 2858714, 9682221, 32700942, 110173948, 370393059, 1242869721, 4163561358, 13927246329, 46526402422, 155249799428, 517505902283, 1723457914689, 5734951039346 ]
[ "nonn" ]
A033090
[ 1, 2, 3, 5, 308, 432, 28422, 156382, 267314, 453294, 11504931, 849955263, 2349980289, 3588031780, 8600404591, 15621034283, 90715138279, 119126758227, 383059989914 ]
[ "nonn", "hard" ]
A387728
[ 2, 4, 5, 6, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 23, 24, 25, 26, 27, 28, 29, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 47, 48, 49, 50, 52, 53, 54, 56, 57, 58, 59, 60, 61, 62, 63, 64, ...
[ "nonn" ]
A151417
[ 1, 1, 2, 5, 14, 40, 122, 380, 1217, 3967, 13137, 44053, 149321, 510735, 1760687, 6111171, 21338857, 74906438, 264192659, 935757437, 3327107090, 11870683108, 42486960839, 152506832992, 548875377127, 1980241926132, 7160483990345, 25946243999559, 94199923539220, ...
[ "nonn", "walk" ]
A182778
[ 4, 9, 14, 18, 23, 28, 33, 37, 42, 47, 52, 56, 61, 66, 70, 75, 80, 85, 89, 94, 99, 104, 108, 113, 118, 123, 127, 132, 137, 141, 146, 151, 156, 160, 165, 170, 175, 179, 184, 189, 194, 198, 203, 208, 212, 217, 222, 227, 231...
[ "nonn" ]
A193207
[ 1, 1, 1, 2, 11, 126, 2383, 65847, 2484405, 122300214, 7600462726, 581393350442, 53649579705613, 5874521948167920, 752862908769402200, 111616832101497420000, 1.895212647727014e+22, 3.6535371969959394e+24, 7.935461215251817e+26 ]
[ "nonn" ]
A155011
[ 2, 3, 5, 89, 233, 1.0597999265301492e+106 ]
[ "nonn" ]
A204426
[ 1, 1, 9, 34, 132, 1032, 6936, 51912, 530712, 5005152, 53529984, 707802624, 8714718720, 119716185600, 1938416832000, 29588291712000, 496487584512000, 9509523337728000, 173318541516288000, 3434389946233344000 ]
[ "nonn" ]
A377861
[ 1, 2, 15, 206, 4193, 113904, 3882511, 159475280, 7672503681, 423360926720, 26362968645071, 1829066086810368, 139929538526047580, 11703312997355442000, 1.0624236005154792e+21, 1.0404238990171541e+23, 1.0933256593926589e+25, 1.2272012352669546e+27 ]
[ "nonn" ]
A298893
[ 0, 13, 11, 80, 579, 2963, 12224, 72620, 426475, 2284203, 12768382, 72904621, 409673880, 2298677918, 13008113489, 73461302729, 414141245069, 2338885431088, 13210876247129, 74582366744334, 421146376787631, 2378532739728979 ]
[ "nonn" ]
A007856
[ 1, 3, 12, 52, 236, 1109, 5366, 26639, 135300, 701269, 3700400, 19834973, 107784622, 592705377, 3292970302, 18458954896, 104276682820, 593056996445, 3392898090908, 19512100041995, 112729617387020, 653965783541960, 3807766434556940 ]
[ "nonn" ]
A154469
[ 1, 2, 0, 1, 0, 8, 6, 7, 5, 1, 3, 6, 6, 4, 3, 9, 8, 4, 8, 5, 8, 3, 7, 2, 7, 7, 1, 0, 7, 1, 2, 6, 0, 9, 2, 8, 6, 1, 8, 3, 0, 2, 8, 4, 8, 7, 3, 6, 3, 0, 6, 1, 9, 5, 3, 6, 1, 9, 8, 2, 3, 7, 6, 0...
[ "nonn", "cons" ]
A200170
[ 2, 2276, 57992, 631638, 3687480, 15586972, 50917674, 141509152, 344941886, 762917274, 1552478008, 2969607490, 5365606152, 9271467482, 15395275250 ]
[ "nonn" ]
A252483
[ 127, 15667, 16447, 19739, 28559, 32771, 39343, 46633, 46663, 117619, 117643, 117763, 125003, 131071, 137791, 147419, 156253, 156257, 156259, 229373, 248839, 262139, 262147, 279967, 294829, 295247, 326617, 466553, 466561, 466567, 585643, 592763, 649529,...
[ "nonn", "base" ]
A003269
[ 0, 1, 1, 1, 1, 2, 3, 4, 5, 7, 10, 14, 19, 26, 36, 50, 69, 95, 131, 181, 250, 345, 476, 657, 907, 1252, 1728, 2385, 3292, 4544, 6272, 8657, 11949, 16493, 22765, 31422, 43371, 59864, 82629, 114051, 157422, 217286, 299915, 413966, ...
[ "nonn", "easy" ]
A200841
[ 64, 529, 2356, 7587, 19930, 45465, 93472, 177381, 315844, 533929, 864436, 1349335, 2041326, 3005521, 4321248, 6083977, 8407368, 11425441, 15294868, 20197387, 26342338, 33969321, 43350976, 54795885, 68651596, 85307769, 105199444 ]
[ "nonn" ]
A240067
[ 2, 2, 0, 0, 0, 0, 0, 0, 2, 1, 1, 1, 1, 0, 0, 0, 2, 1, 1, 1, 0, 1, 0, 0, 2, 1, 1, 1, 0, 0, 1, 0, 2, 1, 1, 1, 0, 0, 0, 1, 2, 1, 1, 1, 0, 0, 0, -1, 2, 1, 1, 1, 0, 0, -1, 0, 2, 1, 1, 1, 0, -1, 0, ...
[ "sign" ]
A323337
[ 0, 1, 9, 4624 ]
[ "nonn", "more" ]
A160419
[ 1, 2, 2, 2, 2, 2, 4, 8 ]
[ "more", "nonn" ]
A291863
[ 5, 47, 271818611111, 1.7182641242822908e+21, 5.87440310636042e+27, 8.025258571166733e+53, 1.7343773367030268e+70 ]
[ "nonn" ]
A158634
[ 45, 183, 413, 735, 1149, 1655, 2253, 2943, 3725, 4599, 5565, 6623, 7773, 9015, 10349, 11775, 13293, 14903, 16605, 18399, 20285, 22263, 24333, 26495, 28749, 31095, 33533, 36063, 38685, 41399, 44205, 47103, 50093, 53175, 56349, 59615, 62973, 66...
[ "nonn", "easy" ]
A340735
[ 6, 14, 32, 90, 140, 200, 294, 1832, 1070, 888, 1130, 2180, 2478, 2972, 4298, 5592, 1328, 9552, 30594, 19334, 16142, 15684, 81464, 28230, 31908, 19610, 35618, 82074, 44294, 43332, 34062, 89690, 162144, 134514, 173360, 31398, 404598, 212702, ...
[ "nonn" ]
A306667
[ 1, 6, 32760, 51001180160, 5.453044440521755e+43, 1.3382115604460092e+44, 4.22740414758243e+49, 4.894964343056044e+64 ]
[ "nonn", "hard" ]
A232865
[ 2, 97, 14293, 247997, 7979737, 15749303, 344468591, 25934255929, 40224745543, 16495569405383, 53941465463489, 84897825837611, 244949151647509, 757938163218799, 1594375071689591, 1674528348898463, 5347819657753523, 6152744788157173, 47008163075851816 ]
[ "nonn", "more", "hard" ]
A332934
[ 1, 4, 6, 12, 12, 24, 20, 35, 33, 47, 37, 74, 48, 75, 75, 99, 71, 127, 84, 144, 121, 143, 111, 215, 137, 184, 173, 231, 157, 289, 174, 280, 232, 272, 238, 393, 226, 321, 297, 420, 264, 463, 283, 443, 404, 426, 323, 612, 3...
[ "nonn" ]
A291754
[ 1, 3, 7, 15, 30, 61, 123, 247, 495, 991, 1983, 3967, 7934, 15869, 31739, 63479, 126959, 253919, 507839, 1015678, 2031357, 4062715, 8125431, 16250863, 32501727, 65003455, 130006911, 260013822, 520027645, 1040055291, 2080110583, 4160221167, 8320442335, ...
[ "nonn" ]
A300648
[ 1, 1, 2, 1, 2, 2, 2, 1, 6, 2, 2, 2, 2, 2, 12, 1, 2, 6, 2, 2, 14, 2, 2, 2, 8, 2, 68, 2, 2, 12, 2, 1, 18, 2, 16, 6, 2, 2, 20, 2, 2, 14, 2, 2, 644, 2, 2, 2, 10, 8, 24, 2, 2, 68, 20, 2, 26, 2, 2, 12, ...
[ "nonn", "look" ]
A332878
[ 1, 2, 4, 3, 6, 9, 12, 8, 16, 5, 10, 15, 18, 20, 24, 25, 21, 27, 28, 32, 30, 36, 35, 33, 39, 42, 40, 45, 44, 48, 54, 50, 52, 56, 55, 51, 57, 60, 65, 63, 64, 7, 14, 66, 68, 72, 78, 76, 80, 84, 70, 88, 75, 92, 9...
[ "nonn" ]
A051388
[ 1729, 2457, 4104, 4914, 4977, 8001, 8216, 10773, 13832, 15561, 16263, 19656, 20683, 32832, 39312, 39816, 40033, 46683, 64008, 64232, 65728, 66339, 80236, 86184, 110656, 110808, 124336, 124488, 127062, 130104, 132678, 132867, 134379, 149389, 157248,...
[ "nonn" ]
A214551
[ 1, 1, 1, 2, 3, 4, 3, 2, 3, 2, 2, 5, 7, 9, 14, 3, 4, 9, 4, 2, 11, 15, 17, 28, 43, 60, 22, 65, 25, 47, 112, 137, 184, 37, 174, 179, 216, 65, 244, 115, 36, 70, 37, 73, 143, 180, 253, 36, 6, 259, 295, 301, 80, 75, ...
[ "nonn", "nice" ]
A092808
[ 1, 0, 3, 1, 11, 5, 43, 21, 171, 85, 683, 341, 2731, 1365, 10923, 5461, 43691, 21845, 174763, 87381, 699051, 349525, 2796203, 1398101, 11184811, 5592405, 44739243, 22369621, 178956971, 89478485, 715827883, 357913941, 2863311531, 1431655765 ]
[ "easy", "nonn" ]
A283450
[ 2, 2, 3, 2, 19, 2, 5, 17, 13, 7, 1129, 59, 47, 7, 19, 7, 31, 79, 11, 37, 199, 5, 907, 43, 5, 43, 3, 13, 919, 2, 13, 2, 263, 127, 241, 3, 131, 71, 11, 421, 223, 2, 31, 3, 7, 89, 3673, 61, 293, 5, 131, 919, 3, 3,...
[ "nonn" ]
A193981
[ 0, 0, 0, 2, 23, 127, 468, 1352, 3310, 7190, 14260, 26330, 45885, 76237, 121688, 187712, 281148, 410412, 585720, 819330, 1125795, 1522235, 2028620, 2668072, 3467178, 4456322, 5670028, 7147322, 8932105, 11073545, 13626480, 16651840, 20217080 ]
[ "nonn" ]
A235187
[ 0, 0, 1, 1, 2, 1, 1, 2, 2, 3, 2, 3, 2, 1, 2, 2, 2, 3, 1, 2, 5, 5, 2, 5, 3, 2, 5, 2, 1, 6, 2, 4, 4, 1, 5, 3, 4, 3, 6, 6, 3, 5, 5, 2, 9, 3, 3, 7, 2, 4, 7, 6, 3, 6, 7, 5, 4, 4, 4, 12, 3, 2, 5, ...
[ "nonn" ]
A165513
[ 5, 7, 9, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 6...
[ "easy", "nonn" ]
A060776
[ 1, 1, 2, 4, 10, 24, 70, 192, 576, 1890, 6300, 21600, 78848, 294840, 1143072, 4572288, 18849600, 79968000, 348566400, 1559376000, 7147140000, 33522128640, 160758097500, 787652812800, 3938264064000, 20080974513600, 104348440350000, 552160113120000 ]
[ "nonn" ]
A241294
[ 1, 1, 1, 1, 0, 2, 8, 8, 0, 8, 1, 7, 9, 9, 9, 7, 4, 4, 5, 2, 8, 6, 1, 7, 8, 2, 7, 4, 1, 8, 6, 0, 5, 7, 5, 4, 5, 1, 6, 7, 3, 4, 6, 5, 2, 0, 5, 9, 6, 2, 7, 2, 1, 5, 4, 7, 3, 3, 3, 8, 6, 7, 4, 5...
[ "nonn", "cons", "fini" ]
A127896
[ 1, -2, 1, 3, -7, 4, 10, -25, 16, 33, -89, 63, 108, -316, 245, 350, -1119, 943, 1121, -3952, 3598, 3539, -13920, 13625, 10971, -48897, 51256, 33208, -171287, 191694, 97265, -598325, 713161, 271388, -2083934 ]
[ "easy", "sign" ]
A044591
[ 23, 87, 151, 191, 215, 279, 343, 407, 471, 535, 599, 663, 703, 727, 791, 855, 919, 983, 1047, 1111, 1175, 1215, 1239, 1303, 1367, 1431, 1535, 1559, 1623, 1687, 1727, 1751, 1815, 1879, 1943, 2007, 2071, 2135, 2199, 2239, 2263 ]
[ "nonn", "base" ]
A064733
[ 9, 1, 0, 7, 7, 5, 5, 3, 6, 1, 6, 1, 2, 6, 3, 9, 3, 5, 6, 4, 4, 1, 2, 8, 8, 5, 7, 6, 3, 2, 6, 8, 6, 5, 5, 0, 1, 6, 0, 4, 8, 5, 9, 1, 6, 9, 4, 6, 3, 4, 0, 7, 3, 8, 1, 7, 6, 8, 1, 3, 1, 6, 8, 8...
[ "nonn", "base" ]
A238484
[ 1, 2, 3, 4, 5, 7, 8, 11, 15, 17, 24, 32, 38, 51, 68, 81, 109, 138, 169, 220, 278, 336, 431, 536, 654, 816, 1007, 1221, 1511, 1843, 2225, 2718, 3295, 3954, 4793, 5760, 6886, 8271, 9885, 11759, 14030, 16668, 19738, 23407, 27676, ...
[ "nonn", "easy" ]
A360739
[ 6, 38, 51, 123, 146, 291, 326, 731, 843, 1227, 1371, 1766, 1851, 2306, 2603, 2811, 2918, 3027, 3602, 4227, 4358, 4763, 5186, 5331, 5627, 6243, 6891, 7058, 7571, 8102, 8651, 9411, 13227, 14163, 15627, 17426, 17691, 18227, 18771, 19883, 2...
[ "nonn", "easy" ]
A167996
[ 13, 14, 28, 41, 51, 61, 72, 82, 92, 103, 113, 123, 133, 134, 144, 154, 164, 175, 185, 195, 206, 216, 226, 237, 247, 257, 268, 278, 288, 298, 309, 319, 329, 341, 351, 361, 371, 381, 391, 401, 411, 421, 431, 441, 451, 461, 471...
[ "base", "nonn" ]
A323549
[ 0, 0, 0, 36, 480, 36, 10, 16, 84, 2704, 46736, 324, 80, 4, 19776, 144 ]
[ "nonn", "more" ]
A194464
[ 5, 10, 13, 14, 15, 18, 19, 20, 26, 31, 34, 35, 36, 39, 40, 41, 47, 52, 68, 73, 89, 94, 99, 102, 103, 104, 107, 108, 109, 115, 120, 123, 124, 125, 128, 129, 130, 136, 141, 157, 162, 178, 183, 188, 191, 192, 193, 196, 197,...
[ "nonn" ]
A103673
[ 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1...
[ "nonn", "base" ]
A237074
[ 8613338, 12551185804, 12159520038142, 14967248359057988, 17922505416903365000, 2.2189788076602238e+22, 2.7496427403161483e+25, 3.4262932388030026e+28, 4.273612513084499e+31 ]
[ "nonn" ]
A189120
[ 1, 1, 1, 17, 1, 37, 1, 81, 82, 101, 1, 197, 1, 197, 226, 337, 1, 442, 1, 517, 442, 485, 1, 837, 626, 677, 811, 997, 1, 1262, 1, 1361, 1090, 1157, 1226, 1898, 1, 1445, 1522, 2181, 1, 2438, 1, 2437, 2332, 2117, 1, 3397, 24...
[ "nonn", "easy" ]