id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A199391
[ 6, 4, 1, 1, 1, 9, 3, 6, 3, 7, 7, 9, 7, 5, 0, 6, 6, 4, 3, 8, 3, 1, 3, 2, 0, 4, 6, 0, 5, 7, 2, 6, 0, 2, 2, 8, 8, 3, 8, 4, 5, 3, 4, 0, 9, 1, 0, 2, 7, 9, 8, 9, 6, 9, 2, 1, 4, 9, 7, 2, 2, 8, 3, 0...
[ "nonn", "cons" ]
A338954
[ 6.877444661497821e+25, 5.523164445430505e+42, 5.448873034189827e+54, 1.0956401461402942e+64 ]
[ "nonn", "easy" ]
A331918
[ 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 0, 0, 0, 0, 0, 0, 0, 2, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 0, 0, 0, 0, 0, 0, 0, 2, 6, 0, 0, 0, 0...
[ "nonn", "look" ]
A007034
[ 0, 0, 0, 0, 0, 0, 1, 2, 8, 35, 168, 999, 6340, 43133, 305271, 2231377 ]
[ "nonn" ]
A156770
[ 1, 3, 7, 9, 11, 17, 21, 29, 39, 43, 49, 51, 53, 81, 91, 99, 103, 123, 127, 133, 153, 191, 227, 231, 241, 249, 253, 273, 281, 291, 293, 311, 323, 333, 337, 339, 341, 347, 359, 377, 387, 397, 427, 429, 431, 441, 443, 453, ...
[ "nonn", "base" ]
A075949
[ 0, 2047, 129055, 131040, 932067, 933660, 1032444, 1033987, 3299692, 3301011, 3383667, 3384972, 3957135, 3958384, 4037008, 4038255, 5548725, 5549386, 5591722, 5592405, 5935702, 5936553, 5990985, 5991862, 6747097, 6747174 ]
[ "nonn" ]
A070059
[ 1, 6, 7, 2, 6, 2, 1, 9, 2 ]
[ "cons", "nonn" ]
A083603
[ 32788, 120459, 141899, 255945, 255946, 266894, 365783, 378301, 663429, 707038, 740956, 802226, 821500, 969110, 973525, 973670, 1084126, 1189427, 1247619, 1295214, 1312579, 1672127, 1876791, 2003018, 2030728, 2136234, 2170463 ]
[ "base", "nonn" ]
A324054
[ 1, 3, 4, 7, 6, 12, 13, 15, 8, 18, 24, 28, 31, 39, 40, 31, 12, 24, 32, 42, 48, 72, 78, 60, 57, 93, 124, 91, 156, 120, 121, 63, 14, 36, 48, 56, 72, 96, 104, 90, 96, 144, 192, 168, 248, 234, 240, 124, 133, 171, 228, 2...
[ "nonn" ]
A332575
[ 2, 9, 4, 12, 24, 185, 114, 1649, 692, 4977, 1412, 416345, 22624, 72233, 199892, 25262152, 1351880, 130824185, 16305324, 1688906313, 9412730, 10393378914, 721753400 ]
[ "nonn", "more" ]
A373091
[ 1, 1, 1, 3, 7, 15, 29, 54, 102, 197, 375, 687, 1226, 2182, 3885, 6827, 11757, 19920, 33339, 55012, 88980, 140141, 213535, 311997, 428578, 527659, 506451, 118728, -1180673, -4546846, -12344870, -29279209, -64481947, -135339292, -274463246, -542210...
[ "sign" ]
A383886
[ 0, 0, 1, 8, 84, 2660, 609797, 1831687022, 52966239062973, 12417282095522918000, 2.65307032892523e+25, 1.0088600980935478e+33, 1.3782884139946053e+42, 3.6959929418354254e+52, 1.479996898222624e+64 ]
[ "nonn" ]
A107911
[ 12, 19, 24, 25, 28, 35, 38, 39, 44, 48, 49, 50, 51, 52, 56, 57, 60, 67, 70, 71, 75, 76, 77, 78, 79, 83, 88, 89, 92, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 108, 112, 113, 114, 115, 116, 120, 121, 124, 131, 134, ...
[ "nonn", "base" ]
A130561
[ 1, 1, 2, 1, 6, 6, 1, 24, 24, 12, 12, 1, 120, 120, 120, 60, 60, 20, 1, 720, 720, 720, 360, 360, 720, 120, 120, 180, 30, 1, 5040, 5040, 5040, 5040, 2520, 5040, 2520, 2520, 840, 2520, 840, 210, 420, 42, 1, 40320, 40320, 40320...
[ "nonn", "tabf", "easy" ]
A093081
[ 1, 2, 4, 6, 9, 27, 30, 52, 97, 193, 243, 317, 750, 911 ]
[ "nonn" ]
A096706
[ 211, 263, 349, 397, 409, 439, 709, 751, 787, 827, 1153, 1187, 1259, 1487, 1523, 1531, 2281, 2287, 2347, 2621, 3037, 3109, 3313, 3329, 3539, 3673, 4357, 4397, 4493, 4951, 4969, 4987, 5189, 5303, 5347, 5857, 6323, 6337, 7583, 7907, 7933, ...
[ "nonn" ]
A303599
[ 4, 2, 1, 1, 1, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1...
[ "nonn" ]
A211478
[ 9, 23, 59, 145, 351, 835, 1971, 4625, 10831, 25349, 59387, 139365, 327791, 772867, 1826897, 4329065, 10282271, 24474781, 58370829, 139453231, 333678255, 799483191, 1917764183, 4604847317, 11066414301, 26614313429, 64046049399 ]
[ "nonn" ]
A290606
[ 1, 2, 4, 4, 40, 136, 8080, 17331120 ]
[ "nonn", "more" ]
A356067
[ 0, 0, 0, 0, 0, 1, 0, 3, 2, 5, 4, 11, 7, 18, 16, 26, 27, 43, 41, 65, 65, 92, 100, 137, 142, 194, 210, 270, 295, 379, 410, 519, 571, 699, 782, 947, 1046, 1267, 1414, 1673, 1870, 2213, 2465, 2897, 3230, 3757, 4210, 4871, 54...
[ "nonn" ]
A206617
[ 4035, 270869, 21744156, 1719525751, 135010973857, 10633148505553, 837071761231340, 65890955765683800, 5187056339251010000, 408327809631129400000, 3.214369185380437e+22, 2.5303673827632275e+24 ]
[ "nonn" ]
A102219
[ 9, 16, 24, 27, 28, 32, 40, 42, 49, 52, 56, 60, 70, 72, 76, 78, 80, 81, 88, 91, 98, 100, 104, 105, 114, 124, 126, 130, 132, 133, 136, 140, 148, 150, 152, 154, 169, 172, 175, 176, 180, 182, 184, 186, 190, 192, 195, 200, 20...
[ "nonn" ]
A220654
[ 0, 3, 9, 7, 17, 23, 34, 15, 33, 39, 55, 47, 66, 88, 72, 31, 65, 71, 103, 79, 133, 111, 152, 95, 130, 136, 215, 176, 277, 144, 273, 63, 129, 135, 199, 143, 443, 207, 284, 159, 261, 280, 239, 223, 588, 260, 264, 191, 258, ...
[ "nonn", "base" ]
A369242
[ 0, 0, 0, 0, 0, 2, 1, 3, 11, 24, 53, 176, 339, 1510, 2573, 8323, 29029, 75349, 236111, 974524, 3097327, 11024996 ]
[ "nonn", "hard", "more" ]
A014689
[ 1, 1, 2, 3, 6, 7, 10, 11, 14, 19, 20, 25, 28, 29, 32, 37, 42, 43, 48, 51, 52, 57, 60, 65, 72, 75, 76, 79, 80, 83, 96, 99, 104, 105, 114, 115, 120, 125, 128, 133, 138, 139, 148, 149, 152, 153, 164, 175, 178, 179, 182,...
[ "nonn", "easy", "nice" ]
A347116
[ 4, 10, 5, 30, 118, 12, 236, 90, 64, 240, 594, 36, 830, 480, -116, 270, 1428, 132, 1784, 720, 1076, 1200, 2622, 108, 144, 1680, 458, 1440, 4178, -228, 4772, 810, 1242, 2880, 2752, 396, 6810, 3600, 2318, 2160, 8364, 2160, 9200, 3600...
[ "sign" ]
A102554
[ 4, 6, 8, 9, 10, 12, 14, 16, 18, 20, 21, 22, 24, 25, 26, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 52, 54, 55, 56, 57, 58, 60, 62, 64, 65, 66, 68, 69, 70, 72, 74, 75, 76, 77, 78, 80, 81...
[ "nonn", "base" ]
A161721
[ 2, 3, 11, 101, 1021, 1201, 111211, 112111, 1000211, 1010201, 1020101, 1101211, 1102111, 1111021, 1112011, 1120001, 1121011, 1201111, 10011101, 10012001, 10021001, 10100201, 10111001, 10200101, 11012011, 11021011, 11100121, 12100111 ]
[ "base", "nonn" ]
A001195
[ 0, 2, 4, 7, 10, 13, 16, 20, 24, 27, 31, 36, 40, 44, 48, 53, 57, 62, 66, 71, 76, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 130, 136, 141, 146, 152, 157, 162, 168, 173, 179, 184, 190, 195, 201, 206, 212, 218, 223, 22...
[ "nonn" ]
A188791
[ 0, 24576, 3203232, 30437760, 125478336, 352052352, 794632800, 1558721152, 2770757712, 4578094656, 7148994304, 10672629120, 15359081712, 21439344832, 29165321376, 38809824384, 50666577040, 65050212672, 82296274752 ]
[ "nonn" ]
A278717
[ 1, 0, 7, -7, 0, 17, 0, -1, 0, 31, -23, 0, 0, 0, 49, 0, -17, 0, 23, 0, 71, -47, 0, -7, 0, 41, 0, 97, 0, -41, 0, 7, 0, 0, 0, 127, -79, 0, -31, 0, 0, 0, 89, 0, 161, 0, -73, 0, -17, 0, 47, 0, 119, 0, 199, -119,...
[ "sign", "tabl", "easy" ]
A199221
[ -1, 0, 1, 1, 4, 2, 2, 12, 18, 6, 3, 28, 83, 88, 24, 4, 55, 270, 575, 500, 120, 5, 96, 705, 2490, 4324, 3288, 720, 6, 154, 1582, 8330, 23828, 35868, 24696, 5040, 7, 232, 3178, 23296, 98707, 242872, 328236, 209088, 40320, 8, 3...
[ "sign", "tabl" ]
A347267
[ 1, 8, 10, 12, 13, 17, 22, 23, 27, 28, 29, 30, 36, 37, 38, 49, 50, 51, 64, 65, 66, 67, 71, 80, 84, 85, 86, 87, 89, 94, 95, 96, 103, 104, 106, 111, 113, 114, 115, 118, 119, 124, 125, 126, 136, 137, 138, 140, 141, 150, ...
[ "nonn" ]
A245012
[ 1, 1, 1, 3, 16, 125, 1296, 15967, 225184, 3573369, 63006400, 1222037531, 25856693424, 592684459237, 14630486811136, 386952126342615, 10916525199478336, 327220530559545700, 10385328804324012000, 347921328910693700000, 1.226925663386784e+22 ]
[ "nonn" ]
A321655
[ 1, 1, 1, 5, 5, 9, 29, 33, 53, 77, 225 ]
[ "nonn", "more" ]
A320046
[ 2, 2, 6, 6, 10, 6, 18, 12, 18, 10, 22, 12, 26, 18, 30, 30, 34, 18, 54, 30, 42, 22, 46, 24, 50, 26, 54, 42, 58, 30, 62, 32, 66, 34, 90, 42, 74, 54, 90, 60, 82, 42, 98, 66, 90, 46, 94, 60, 98, 50, 102, 90, 106, 5...
[ "nonn" ]
A259620
[ 6, 4, 1, 5, 6, 1, 6, 3, 7, 5, 7, 0, 0, 2, 4, 0, 2, 8, 2, 8, 3, 9, 8, 1, 4, 7, 1, 9, 0, 8, 7, 9, 2, 4, 0, 3, 8, 1, 0, 9, 0, 0, 0, 5, 6, 5, 2, 0, 7, 7, 2, 0, 7, 7, 8, 6, 7, 4, 9, 4, 7, 6, 2, 7...
[ "nonn", "cons", "easy" ]
A261276
[ 0, 1, 100, 297, 592, 985, 1476, 2065, 2752, 3537, 4420, 5401, 6480, 7657, 8932, 10305, 11776, 13345, 15012, 16777, 18640, 20601, 22660, 24817, 27072, 29425, 31876, 34425, 37072, 39817, 42660, 45601, 48640, 51777, 55012, 58345, 61776, 65305, ...
[ "nonn", "easy" ]
A070364
[ 1, 3, 9, 27, 34, 8, 24, 25, 28, 37, 17, 4, 12, 36, 14, 42, 32, 2, 6, 18, 7, 21, 16, 1, 3, 9, 27, 34, 8, 24, 25, 28, 37, 17, 4, 12, 36, 14, 42, 32, 2, 6, 18, 7, 21, 16, 1, 3, 9, 27, 34, 8, 24, 25, 28, 37, ...
[ "nonn", "easy" ]
A176000
[ 6, 4, 6, 5, 0, 3, 1, 9, 9, 2, 9, 8, 5, 7, 7, 9, 4, 4, 5, 3, 4, 1, 6, 3, 6, 2, 9, 7, 9, 3, 3, 0, 1, 7, 5, 4, 9, 0, 9, 7, 4, 3, 1, 9, 9, 1, 9, 1, 2, 2, 6, 0, 0, 6, 1, 9, 2, 1, 9, 2, 0, 7, 5, 3...
[ "cons", "nonn" ]
A206365
[ 383021, 643832706, 1197873588223, 2216692870846655, 4089300179444311600 ]
[ "nonn" ]
A363064
[ 1, 1, 2, 5, 12, 37, 94, 280, 912, 3164, 8424 ]
[ "nonn", "hard", "more" ]
A210833
[ 3, 33, 798, 39272, 3683671, 640787121, 204615573204, 119576103350570, 127795340782521810, 249802991080797470000 ]
[ "nonn" ]
A129596
[ 1, 2, 4, 3, 9, 6, 4, 8, 27, 16, 5, 25, 15, 125, 10, 6, 18, 12, 54, 45, 24, 7, 49, 35, 343, 21, 175, 14, 8, 16, 81, 32, 625, 162, 2401, 64, 9, 27, 18, 81, 75, 36, 245, 243, 54, 10, 50, 30, 250, 20, 90, 63, 1250, ...
[ "nonn", "tabl" ]
A104849
[ 72407663, 40766303, 54759457, 57138217, 20030599, 98807531, 15738341, 83418793, 34884167, 84167509, 22648001, 10753907, 20695517, 38606261, 82656029, 29760673, 13200709, 27443747, 74704723, 69772093, 92836819 ]
[ "nonn", "base" ]
A381395
[ 0, 0, 8, 4, 1, 9, 6, 6, 8, 5, 0, 3, 0, 9, 6, 3, 3, 2, 4, 2, 3, 9, 6, 8, 5, 7, 9, 7, 1, 4, 6, 7, 0, 6, 5, 0, 6, 3, 6, 9, 1, 7, 8, 7, 5, 0, 6, 3, 9, 5, 8, 0, 9, 2, 2, 7, 2, 5, 7, 4, 5, 1, 6, 6...
[ "nonn", "cons" ]
A286389
[ 0, 1, 2, 2, 3, 4, 4, 5, 6, 7, 8, 8, 9, 10, 10, 11, 12, 13, 14, 14, 15, 16, 16, 17, 18, 18, 19, 20, 20, 21, 22, 23, 24, 24, 25, 26, 26, 27, 28, 29, 30, 30, 31, 32, 32, 33, 34, 34, 35, 36, 36, 37, 38, 39, 40, ...
[ "nonn" ]
A104245
[ 0, 0, 1, 0, 1, 1, 0, 1, 2, 2, 0, 1, 3, 2, 1, 0, 1, 4, 2, 4, 2, 0, 1, 5, 2, 9, 3, 1, 0, 1, 6, 2, 16, 4, 8, 3, 0, 1, 7, 2, 25, 5, 27, 3, 2, 0, 1, 8, 2, 36, 6, 64, 3, 4, 2, 0, 1, 9, 2, 49, 7, 125, ...
[ "easy", "nonn", "tabl" ]
A351008
[ 1, 0, 0, 1, 1, 2, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 23, 28, 34, 41, 50, 60, 71, 85, 102, 120, 142, 168, 197, 231, 271, 316, 369, 429, 497, 577, 668, 770, 888, 1023, 1175, 1348, 1545, 1767, 2020, 2306, 2626, 2990, 3401, ...
[ "nonn", "easy" ]
A174966
[ 1, 1, 1, 1, -2, 1, 1, -19, -19, 1, 1, -74, -324, -74, 1, 1, -223, -2708, -2708, -223, 1, 1, -594, -16659, -45884, -16659, -594, 1, 1, -1475, -85839, -531011, -531011, -85839, -1475, 1, 1, -3506, -394388, -4852814, -10777040, -4852814,...
[ "sign", "tabl", "uned" ]
A141570
[ 83, 293, 503, 1553, 1973, 2393, 3023, 3863, 4073, 4283, 4493, 4703, 5333, 6173, 6803, 7013, 7433, 7643, 7853, 8273, 8693, 9323, 9533, 9743, 10163, 11003, 11213, 11423, 11633, 12263, 12473, 12893, 13103, 13313, 13523, 14153, 14783, 15413, 16...
[ "nonn" ]
A202551
[ 1, 1, -1, 0, -1, 1, -1, 1, 1, -1, -1, 3, -2, -1, 1, 0, 2, -5, 3, 1, -1, 1, -2, -2, 7, -4, -1, 1, 1, -5, 7, 1, -9, 5, 1, -1, 0, -3, 12, -15, 1, 11, -6, -1, 1, -1, 3, 3, -21, 26, -4, -13, 7, 1, -1 ]
[ "sign", "tabl" ]
A207627
[ 1, 2, 3, 4, 4, 10, 8, 5, 18, 28, 16, 6, 28, 64, 72, 32, 7, 40, 120, 200, 176, 64, 8, 54, 200, 440, 576, 416, 128, 9, 70, 308, 840, 1456, 1568, 960, 256, 10, 88, 448, 1456, 3136, 4480, 4096, 2176, 512, 11, 108, 624, 235...
[ "nonn", "tabf" ]
A274430
[ 3, 5, 8, 9, 12, 13, 17, 18, 19, 23, 24, 25, 30, 31, 32, 33, 38, 39, 40, 41, 47, 48, 49, 50, 51, 57, 58, 59, 60, 61, 68, 69, 70, 71, 72, 73, 80, 81, 82, 83, 84, 85, 93, 94, 95, 96, 97, 98, 99, 107, 108, 109, 110, ...
[ "nonn", "easy" ]
A173341
[ 2, 23, 199, 201, 408, 575, 603, 1354, 1628, 4995, 5745, 7320, 7994, 12634, 42637, 44217, 45962, 67132, 82131, 82351, 91116, 91134, 146521, 177682, 229863, 359373, 394826, 458908, 462763, 512012, 665719, 728982, 1009965, 1156978, 1450803 ]
[ "nonn" ]
A368993
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 9, 9, 10, 11, 12, 13, 14, 15, 16, 16, 17, 17, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 28, 28, 29, 29, 29, 30, 30, 30, 30, 30, 30, 31, 31, 31, 32, 33, 33, 34, 35, 35, 36, 37,...
[ "nonn" ]
A021469
[ 0, 0, 2, 1, 5, 0, 5, 3, 7, 6, 3, 4, 4, 0, 8, 6, 0, 2, 1, 5, 0, 5, 3, 7, 6, 3, 4, 4, 0, 8, 6, 0, 2, 1, 5, 0, 5, 3, 7, 6, 3, 4, 4, 0, 8, 6, 0, 2, 1, 5, 0, 5, 3, 7, 6, 3, 4, 4, 0, 8, 6, 0, 2, 1...
[ "nonn", "cons" ]
A198733
[ 4, 6, 9, 0, 3, 6, 1, 8, 0, 3, 9, 5, 3, 9, 4, 1, 7, 1, 9, 1, 6, 9, 5, 6, 7, 7, 6, 7, 6, 7, 7, 3, 0, 7, 4, 6, 0, 8, 9, 1, 1, 5, 1, 8, 4, 1, 9, 4, 7, 9, 0, 9, 4, 7, 4, 6, 2, 8, 4, 8, 4, 5, 2, 7...
[ "nonn", "cons" ]
A019113
[ 0, 0, 5, 1, 0, 30, 38, 64, 292, 580, 1226, 3708, 9212, 22012, 58668, 152984, 385024, 999368, 2642518, 6894484, 18053902, 47927004, 126960038, 336077694, 896143310, 2393590070, 6393495678, 17141225138 ]
[ "nonn", "more" ]
A028435
[ 5, 10, 15, 20, 26, 31, 36, 41, 46, 51, 56, 61, 66, 71, 76, 81, 86, 91, 96, 101, 106, 111, 116, 121, 635, 660, 685, 710, 735, 760, 785, 810, 835, 860, 885, 910, 935, 960, 985, 1010, 1035, 1060, 1085, 1110, 1135, 1160, 1185, ...
[ "nonn", "base", "easy" ]
A267034
[ 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
[ "nonn", "tabf", "easy" ]
A219859
[ 1, 1, 0, 2, 2, 0, 6, 18, 3, 0, 24, 144, 84, 4, 0, 120, 1200, 1500, 300, 5, 0, 720, 10800, 23400, 10800, 930, 6, 0, 5040, 105840, 352800, 294000, 63210, 2646, 7, 0, 40320, 1128960, 5362560, 7056000, 2857680, 324576, 7112, 8, 0, ...
[ "nonn", "tabl" ]
A233020
[ 3, 15, 81, 435, 2337, 12555, 67449, 362355, 1946673, 10458075, 56183721, 301834755, 1621541217, 8711375595, 46799960409, 251422553235, 1350712686993, 7256408541435, 38983468081161, 209430157488675, 1125117723605697 ]
[ "nonn" ]
A285339
[ 1, 0, 0, 3, 0, 0, 3, 7, 0, 1, 21, 11, 0, 21, 54, 15, 7, 96, 122, 19, 74, 311, 217, 44, 351, 768, 367, 209, 1227, 1663, 591, 989, 3402, 3225, 1156, 3609, 8289, 5815, 3053, 11096, 18015, 10176, 9466, 29593, 36249, 18454, 28960...
[ "nonn" ]
A251111
[ 23334, 304870, 3097574, 32006770, 336432413, 3656310083, 39932445704, 430092324035, 4617478843871, 49985974667101, 543485113236728, 5894858128220951, 63806925550744936, 691312819246393700 ]
[ "nonn" ]
A122548
[ 3, 57, 111, 3171, 92329, 313741, 4347535, 96167717, 379838997, 1011031071, 9113127131, 137139149151, 1571631671731, 79181191193197, 199211223227229, 2332392412512572, 63269271277281280, 293307311313317300 ]
[ "base", "nonn" ]
A207209
[ 25, 625, 11047, 192640, 3375548, 59151458, 1037800112, 18215805862, 319825973303, 5615850283553, 98614829798053, 1731697303682807, 30409166647098496, 533994742590497200, 9377124049344199000 ]
[ "nonn" ]
A220228
[ 1, 19, 115, 694, 4244, 25771, 156627, 952152, 5791155, 35212909, 214118912, 1302044409, 7917515074, 48145113993, 292763221173, 1780247911592, 10825410249051, 65827639273982, 400287647868551, 2434086938990655 ]
[ "nonn" ]
A048072
[ 0, 0, 1, 2, 6, 13, 21, 45, 91, 154, 322, 645, 1125, 2325, 4651, 8301, 17061, 34123, 61915, 126763, 253527, 465746, 950818, 1901637, 3527109, 7184421, 14368843, 26855641, 54604081, 109208163, 205390163, 416990563, 833981127 ]
[ "nonn" ]
A204964
[ 166, 1001, 6086, 36522, 219755, 1323027, 7962992, 47928592, 288482790, 1736374118, 10451212777, 62905729186, 378628840855, 2278962509607, 13717048411662, 82562752244975, 496944229784914, 2991101444785801 ]
[ "nonn" ]
A221183
[ 0, 1, 2, 5, 3, 11, 5, 7, 19, 5, 29, 7, 43, 31, 7, 5, 17, 13, 43, 11, 13, 37, 29, 19, 67, 17, 101, 73, 19, 37, 31, 11, 53, 13, 79, 19, 13, 5, 23, 17, 19, 11, 41, 31, 103, 79, 29, 137, 101, 113, 109, 331, 257, 13...
[ "nonn" ]
A220963
[ 1, 1, 1, 2, 2, 1, 6, 2, 3, 1, 1, 4, 2, 4, 1, 30, 1, 3, 2, 5, 1, 1, 12, 1, 12, 2, 6, 1, 42, 1, 6, 1, 2, 2, 7, 1, 1, 12, 1, 24, 1, 12, 2, 8, 1, 30, 1, 9, 1, 15, 1, 3, 2, 9, 1, 1, 20, 1, 2, 1, 10, ...
[ "nonn", "tabf", "frac" ]
A269205
[ 1024, 132300, 8314020, 555862380, 34838403756, 2135938293684, 128136007344516, 7568312936979972, 441444334269067260, 25489789190515708000, 1.4595854575540752e+21, 8.299454812618796e+22 ]
[ "nonn" ]
A149440
[ 1, 1, 4, 13, 47, 178, 717, 2931, 12206, 51725, 222382, 965695, 4229004, 18663791, 82908381, 370362024, 1662456328, 7494619832, 33916523818, 154011480462, 701493894387, 3204032461602, 14671001493623, 67330937214095, 309654418218959, 1426834603648238, 65862497620982...
[ "nonn", "walk" ]
A210407
[ 78, 2520, 80496, 2574592, 82334080, 2633043200, 84204544256, 2692856218368, 86117376515328, 2754028420465408, 88073659990146300, 2816590245285823500, 90074383313881530000, 2.880573254472884e+21, 9.212055602389368e+22 ]
[ "nonn" ]
A195209
[ 0, 0, 0, 2, 0, 72, 0, 2704, 0, 268128, 0, 17621496, 0, 4974281208, 0, 549790303712, 0, 245357774621280, 0, 67684833350266500, 0, 36434223374991413000, 0, 1.0781900341537812e+22, 0, 1.4585451990785852e+25, 0, 4.7061121221065416e+27, 0, 5.607912482098967e+30, ...
[ "nonn" ]
A340392
[ 5, 31, 283, 3413, 50069, 17650823, 10405071317, 449317973725128500, 18895749970915967000, 18896062057839747000, 846136323944176500000, 4.019254439002889e+22, 4.0192544398944995e+22, 4.019254439924069e+22, 2.084924134437041e+44 ]
[ "nonn" ]
A192591
[ 1, 3, 11, 19, 131 ]
[ "nonn", "fini", "full" ]
A136036
[ 0, 0, 0, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1...
[ "nonn" ]
A045891
[ 1, 1, 3, 7, 16, 36, 80, 176, 384, 832, 1792, 3840, 8192, 17408, 36864, 77824, 163840, 344064, 720896, 1507328, 3145728, 6553600, 13631488, 28311552, 58720256, 121634816, 251658240, 520093696, 1073741824, 2214592512, 4563402752 ]
[ "easy", "nonn", "nice" ]
A303508
[ 4, 20, 78, 420, 2088, 9916, 49740, 245904, 1204720, 5966528, 29461128, 145208512, 717277504, 3540859200, 17473224048, 86264173904, 425824598480, 2101839903376, 10375467545712, 51215782794640, 252809675084016, 1247933698121232 ]
[ "nonn" ]
A169600
[ 4, 25, 35, 56, 66, 87, 97, 118, 128, 149, 159, 180, 190, 211, 221, 242, 252, 273, 283, 304, 314, 335, 345, 366, 376, 397, 407, 428, 438, 459, 469, 490, 500, 521, 531, 552, 562, 583, 593, 614, 624, 645, 655, 676, 686, 707, 71...
[ "nonn", "easy" ]
A124196
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 10, 16, 17, 18, 19, 20, 21, 22, 23, 24, 15, 26, 27, 28, 29, 30, 31, 32, 33, 34, 20, 36, 37, 38, 39, 40, 41, 42, 43, 44, 25, 46, 47, 48, 49, 25, 21, 17, 13, 9,...
[ "sign", "base", "less" ]
A245399
[ 6, 6, 6, 6, 6, 6, 12, 12, 12, 18, 18, 24, 30, 36, 42, 48, 60, 72, 84, 102, 126, 150, 180, 216, 258, 312, 372, 444, 534, 642, 768, 924, 1110, 1332, 1596, 1914, 2298, 2760, 3312, 3972, 4770, 5724, 6864, 8238, 9888, 11862, 1423...
[ "nonn", "base" ]
A099276
[ 0, 1, 18, 361, 7200, 143641, 2865618, 57168721, 1140508800, 22753007281, 453919636818, 9055639729081, 180658874944800, 3604121859166921, 71901778308393620, 1434431444308705500, 28616727107865715000 ]
[ "nonn", "easy" ]
A269858
[ 1, 2, 3, 4, 5, 6, 11, 8, 7, 9, 31, 10, 127, 18, 13, 14, 709, 12, 5381, 15, 19, 45, 52711, 16, 17, 165, 23, 27, 648391, 21, 9737333, 22, 29, 856, 41, 20, 174440041, 6185, 61, 24, 3657500101, 28, 88362852307, 63, 43, 58644, 24...
[ "nonn" ]
A019769
[ 3, 6, 2, 4, 3, 7, 5, 7, 7, 1, 2, 7, 8, 7, 2, 6, 9, 8, 0, 4, 8, 0, 3, 8, 3, 2, 9, 5, 1, 3, 6, 8, 8, 3, 3, 3, 0, 3, 4, 2, 9, 9, 6, 1, 2, 4, 9, 3, 3, 2, 7, 9, 4, 3, 3, 2, 8, 9, 2, 9, 0, 1, 7, 0...
[ "nonn", "cons" ]
A385272
[ 1, 1, 2, 4, 13, 38, 141, 515, 2043, 8176, 33706, 140471, 593705, 2531933, 10893811, 47202599, 205843902, 902644191, 3977976135, 17609163491 ]
[ "nonn", "hard", "more" ]
A249085
[ 22, 243, 22, 1324, 243, 22, 5005, 1944, 243, 22, 14586, 8805, 2844, 243, 22, 36247, 28366, 15493, 4136, 243, 22, 78448, 84067, 55318, 27213, 5964, 243, 22, 154689, 202628, 195519, 108018, 47645, 8504, 243, 22, 281470, 429069, 525960, 4544...
[ "nonn", "tabl" ]
A173119
[ 1, 1, 1, 1, 5, 1, 1, 6, 6, 1, 1, 7, 12, 7, 1, 1, 8, 28, 28, 8, 1, 1, 9, 36, 56, 36, 9, 1, 1, 10, 45, 119, 119, 45, 10, 1, 1, 11, 55, 164, 238, 164, 55, 11, 1, 1, 12, 66, 219, 483, 483, 219, 66, 12, 1, 1, ...
[ "nonn", "tabl", "easy", "less" ]
A228357
[ 1, 5, 6, 11, 12, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 41, 42, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 7...
[ "nonn", "easy" ]
A262782
[ 9, 36, 279, 2466, 179613, 1773936, 130914099, 1293175566, 95436354393, 68725813719276, 686399210003223, 450970305101000600, 36923966682271785000, 365180934076808900000, 2.695399529303431e+22, 1.9410199662973056e+25, 1.4149796291401708e+28, 1.4132327111705032e+29 ]
[ "nonn", "easy" ]
A273779
[ 4, 8, 8, 16, 8, 32, 8, 32, 8, 64, 8, 32, 40, 96, -24, 64, 8, 128, 8, 32, 104, 160, -88, 128, 8, 128, 136, 32, 104, 288, -216, 128, 8, 256, 8, 32, 232, 288, -216, 256, 8, 128, 392, 32, 104, 544, -472, 128, 136, 384, -...
[ "sign", "easy" ]
A277187
[ 2, 3, 4, 5, 7, 8, 9, 11, 13, 17, 19, 23, 25, 27, 29, 31, 36, 37, 41, 43, 47, 49, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 121, 125, 127, 131, 137, 139, 149, 151, 157, 163, 167, 169, 173, 179, ...
[ "nonn", "easy" ]
A029266
[ 1, 0, 0, 1, 1, 0, 1, 1, 1, 2, 2, 1, 3, 3, 2, 3, 4, 3, 5, 5, 5, 6, 7, 6, 8, 8, 8, 10, 11, 10, 13, 13, 13, 15, 16, 15, 19, 19, 19, 22, 24, 22, 26, 27, 27, 30, 32, 31, 36, 37, 37, 40, 43, 42, 47, 48, 49, 5...
[ "nonn", "easy" ]
A070901
[ 1, 3, 8, 85, 103, 349, 361, 429, 500, 505, 1832, 1895, 1996, 2195, 2202, 2290, 2531, 2575, 2688, 3040, 3189, 3280, 3792, 5103, 5151, 7712, 21398, 21914, 22472, 22603, 22814, 23184, 23375, 24368, 24370, 24545, 24812, 25015, 25262, 25613, ...
[ "easy", "nonn" ]
A343123
[ 3, 13, 17, 19, 239, 269, 457, 751, 1091, 1319, 1871, 2129, 2141, 2341, 2549, 2683, 2969, 3167, 3359, 3671, 3821, 4091, 4799, 5437, 5843, 6299, 6551, 6779, 7559, 8387, 8999, 9239, 9419, 10529, 11057, 11717, 11777, 12071, 13309, 13901, 17...
[ "nonn" ]
A205674
[ 2, 2, 5, 7, 2, 5, 11, 7, 13, 2, 5, 11, 17, 2, 5, 11, 17, 23, 7, 13, 19, 7, 13, 19, 31, 2, 5, 11, 17, 23, 29, 7, 13, 19, 31, 37, 2, 5, 11, 17, 23, 29, 41, 2, 5, 11, 17, 23, 29, 41, 47, 2, 5, 11, 17, 23, 29...
[ "nonn" ]
A115407
[ 0, 2, 4, 1, 0, 1, 0, 6, 8, 3, 10, 2, 3, 12, 2, 1, 0, 14, 1, 0, 16, 18, 5, 20, 22, 4, 24, 26, 28, 30, 5, 32, 34, 4, 36, 3, 38, 2, 40, 42, 44, 1, 0, 3, 46, 2, 48 ]
[ "nonn" ]
A339296
[ 1, 1, 2, 4, 9, 23, 60, 170, 496, 1505, 4665, 14772, 47415, 154093, 505394, 1671009, 5561274, 18615687, 62624016, 211605003, 717823582, 2443711716, 8345934897, 28587110560, 98181058020, 338029066457, 1166451261583, 4033596172701, 13975467586797, 4850987217387...
[ "nonn" ]