id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A069955
[ 1, 3, 45, 175, 11025, 43659, 693693, 2760615, 703956825, 2807136475, 44801898141, 178837328943, 11425718238025, 45635265151875, 729232910488125, 2913690606794775, 2980705490751055000, 11912508103174631000, 190453061649520330000, 761284675790187900000 ]
[ "nonn", "frac", "easy" ]
A017939
[ 1, 4, 11, 37, 121, 402, 1331, 4415, 14641, 48559, 161051, 534146, 1771561, 5875604, 19487171, 64631635, 214358881, 710947979, 2357947691, 7820427767, 25937424601, 86024705430, 285311670611 ]
[ "nonn" ]
A329572
[ 0, 1, 2, 5, 6, 11, 12, 17, 26, 35, 36, 47, 24, 54, 77, 7, 43, 60, 13, 30, 96, 4, 67, 97, 16, 133, 34, 3, 40, 27, 63, 100, 10, 20, 171, 9, 8, 51, 21, 22, 52, 15, 32, 38, 75, 141, 56, 41, 71, 122, 152, 45, 68, 29, 59, 14, 39, 44, 50, 23, 53, 57, 74, 107, 170, 176, 93, 134, 137, 86, 177, 65, 476, 62, 87, 92, 101 ]
[ "nonn" ]
A270897
[ 1, 5, 5, 37, 4, 105, 20, 177, 17, 337, 36, 449, 12, 681, 60, 817, 40, 1169, 108, 1321, 56, 1777, 140, 2009, 156, 2425, 232, 2657, 140, 3249, 336, 3529, 316, 4185, 388, 4497, 316, 5281, 364, 5777, 460, 6465, 508, 6985, 448, 7793, 780, 8217, 688, 9177, 792 ]
[ "nonn", "easy" ]
A257329
[ 2, 11, 13, 25, 21, 37, 27, 10, 39, 20, 71, 24, 85, 32, 95, 107, 115, 121, 125, 46, 145, 151, 155, 99, 167, 105, 181, 117, 197, 205, 211, 141, 223, 147, 76, 159, 86, 263, 72, 259, 135, 289, 30, 311, 60, 301, 94, 337, 116, 341, 343, 110, 359, 112, 237, 122, 389 ]
[ "nonn" ]
A111175
[ 1, 2, 5, 6, 7, 8, 9, 11, 14, 18, 19, 20, 21, 22, 23, 25, 27, 33, 34, 35, 39, 40, 41, 43, 44, 46, 49, 51, 54, 58, 60, 61, 62, 65, 67, 71, 72, 74, 75, 76, 77, 78, 79, 84, 85, 89, 91, 93, 95, 99, 100, 102, 104, 106, 109, 110, 111, 112, 113, 117, 118, 119, 121, 123, 131, 134, 135 ]
[ "nonn" ]
A032337
[ 2, 2, 0, 0, 0, 720, 10080, 241920, 5080320, 108864000, 2474841600, 60833203200, 1569209241600, 42978897561600, 1265828788224000, 38916389191680000, 1280474741145600000, 44189183316934660000 ]
[ "nonn" ]
A093637
[ 1, 1, 2, 4, 9, 20, 49, 117, 297, 746, 1947, 5021, 13378, 35237, 95123, 254825, 694987, 1882707, 5184391, 14177587, 39289183, 108337723, 301997384, 837774846, 2347293253, 6546903307, 18417850843, 51617715836, 145722478875, 409964137081, 1161300892672 ]
[ "nonn" ]
A086990
[ 0, 1, -2, 3, -4, 6, -10, 15, -20, 30, -52, 78, -96, 144, -282, 423, -420, 630, -1660, 2490, -1304, 1956, -11332, 16998, 3896, -5844, -95240, 142860, 157160, -235740, -983610, 1475415, 2634300, -3951450, -11751660, 17627490, 38381160, -57571740 ]
[ "sign" ]
A075758
[ 2, 1, 2, 3, 5, 4, 7, 4, 4, 6, 2, 8, 14, 8, 8, 4, 17, 7, 26, 7, 6, 12, 6, 14, 14, 16, 2, 27, 6, 33, 6, 36, 26, 7, 33, 18, 2, 18, 6, 36, 2, 18, 14, 20, 25, 14, 25, 0, 22, 24, 34, 16, 46, 61, 18, 7, 25, 38, 47, 47, 54, 79, 157, 97, 28, 23, 7, 137, 24, 46, 36, 25, 2, 214, 94, 40, 2, 96 ]
[ "nonn" ]
A272881
[ 1, 2, 4, 4, 7, 8, 8, 8, 13, 16, 16, 16, 16, 16, 16, 16, 31, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 61, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 127, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128, 128 ]
[ "nonn" ]
A280500
[ 1, 0, 2, 0, 1, 3, 0, 0, 0, 4, 0, 0, 1, 2, 5, 0, 0, 0, 0, 0, 6, 0, 0, 0, 1, 3, 3, 7, 0, 0, 0, 0, 0, 2, 0, 8, 0, 0, 0, 0, 1, 0, 0, 4, 9, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, 0, 0, 0, 0, 0, 1, 0, 2, 7, 5, 11, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0, 12, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 6, 13, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 4, 0, 14, 0, 0, 0, 0, 0, 0, 0, 1, 3, 3, 0, 3, 0, 7, 15 ]
[ "nonn", "tabl" ]
A102178
[ 5, 9, 11, 16, 17, 18, 20, 30, 31, 41, 43, 54, 68, 69, 84, 135, 139, 174, 188, 191, 203, 207, 243, 301, 356 ]
[ "nonn", "more", "less", "base" ]
A226386
[ 5, 10, 13, 15, 17, 19, 20, 21, 26, 29, 30, 33, 34, 35, 37, 38, 39, 40, 41, 42, 45, 51, 52, 53, 55, 57, 58, 60, 61, 63, 65, 66, 68, 69, 70, 73, 74, 76, 77, 78, 80, 82, 84, 85, 87, 89, 90, 91, 93, 95, 97, 101, 102, 104, 105, 106, 109, 110, 111, 113, 114, 115 ]
[ "nonn" ]
A252425
[ 641, 688, 1810, 7575, 85563, 1190037, 10924203, 384953455, 14875741975, 235391624751, 26396547463733, 2950331202467754, 75986516939085810, 27838867253853704000, 9.086935218480182e+21 ]
[ "nonn" ]
A321781
[ 0, 2, 3, 5, 3, 2, 2, 4, 6, 10, 4, 5, 2, 3, 11, 3, 10, 8, 6, 2, 27, 11, 4, 6, 3, 7, 5, 2, 2, 19, 5, 7, 12, 4, 3, 9, 3, 7, 2, 42, 35, 11, 6, 5, 21, 8, 19, 5, 3, 2, 15, 9, 10, 7, 12, 16, 26, 24, 40, 7, 36, 2, 5, 4, 14, 12, 4, 9, 6, 26, 8, 11, 18, 13, 2, 3, 12, 7, 21, 10, 15, 11, 4, 5, 23, 13, 6, 12, 2, 18, 3 ]
[ "nonn", "tabl" ]
A281112
[ 1, 6, 8, 8, 9, 2, 4, 1, 1, 0, 7, 6, 9, 1, 6, 5, 2, 0, 6, 6, 8, 6, 3, 5, 9, 6, 4, 3, 7, 1, 9, 8, 3, 3, 6, 0, 8, 9, 6, 1, 4, 6, 2, 6, 4, 6, 6, 1, 6, 6, 7, 2, 1, 9, 1, 6, 4, 5, 6, 6, 3, 5, 6, 6, 6, 4, 0, 8, 9, 2, 9, 4, 3, 8, 6, 0, 4, 8, 4, 5, 9, 7, 5, 6, 9, 4 ]
[ "nonn", "cons" ]
A147757
[ 1, 11, 101, 1001, 10101, 101101, 1011101, 10111101, 101111101, 1011111101, 10111111101, 101111111101, 1011111111101, 10111111111101, 101111111111101, 1011111111111101, 10111111111111100, 101111111111111100 ]
[ "base", "easy", "nonn" ]
A220273
[ 2, 7, 17, 24, 25, 38, 41, 58, 59, 64, 65, 73, 95, 97, 103, 106, 107, 108, 138, 143, 143, 157, 169, 169, 174, 179, 182, 214, 227, 238, 239, 242, 248, 267, 267, 268, 269, 269, 329, 330, 333, 336, 343, 348, 353, 368, 379, 379, 383, 389, 392, 432, 437, 437, 444 ]
[ "nonn" ]
A352456
[ 1, 4, 14, 49, 301, 1589, 9761, 51529, 452411, 3041573, 23140153, 143573641, 1260538619, 8474639717, 64474684537 ]
[ "nonn", "more" ]
A276856
[ 2, 2, 3, 2, 3, 2, 3, 2, 3, 2, 2, 3, 2, 3, 2, 3, 2, 3, 2, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 2, 3, 2, 3, 2, 3, 2, 3, 2, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 2, 3, 2, 3, 2, 3, 2, 3, 2, 2, 3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 2, 3, 2, 3, 2, 3, 2, 3, 2, 2, 3, 2, 3, 2, 3, 2 ]
[ "nonn", "easy" ]
A151571
[ 1, 2, 3, 5, 3, 5, 8, 8, 3, 5, 8, 8, 8, 13, 16, 11, 3, 5, 8, 8, 8, 13, 16, 11, 8, 13, 16, 16, 21, 29, 27, 14, 3, 5, 8, 8, 8, 13, 16, 11, 8, 13, 16, 16, 21, 29, 27, 14, 8, 13, 16, 16, 21, 29, 27, 19, 21, 29, 32, 37, 50, 56, 41, 17, 3, 5, 8, 8, 8, 13, 16, 11, 8, 13, 16, 16, 21, 29, 27, 14, 8, 13 ]
[ "nonn" ]
A143998
[ 0, 1, 1, 2, 3, 2, 3, 4, 4, 3, 3, 6, 6, 6, 3, 4, 7, 9, 9, 7, 4, 5, 9, 11, 12, 11, 9, 5, 6, 10, 13, 15, 15, 13, 10, 6, 6, 12, 15, 18, 18, 18, 15, 12, 6, 7, 13, 18, 21, 22, 22, 21, 18, 13, 7, 8, 15, 20, 24, 26, 27, 26, 24, 20, 15, 8, 9, 16, 22, 27, 30, 31, 31, 30, 27, 22, 16, 9, 9, 18, 24, 30 ]
[ "nonn", "tabl" ]
A191123
[ 1, 2, 5, 9, 14, 21, 26, 37, 41, 57, 62, 77, 85, 105, 110, 122, 149, 165, 170, 185, 229, 230, 249, 254, 309, 314, 329, 341, 365, 421, 441, 446, 489, 494, 509, 554, 597, 661, 681, 686, 689, 741, 746, 761, 917, 921, 926, 941, 986, 997, 1017, 1022, 1094, 1237, 1257, 1262, 1317, 1322, 1337, 1365, 1461, 1466, 1481, 1526, 1661, 1685 ]
[ "nonn" ]
A133094
[ 1, 3, 1, 5, 3, 1, 7, 7, 5, 1, 9, 14, 14, 5, 1, 11, 25, 30, 16, 7, 1, 13, 41, 55, 41, 27, 7, 1, 15, 63, 91, 91, 77, 29, 9, 1, 17, 92, 140, 182, 182, 92, 44, 9, 1, 19, 129, 204, 336, 378, 246, 156, 46, 11, 1 ]
[ "nonn", "tabl" ]
A143703
[ 1, 3, 7, 15, 15, 21, 15, 39, 91, 555, 285, 915, 3333, 1155, 1267, 2769, 4935, 10005, 70635, 7035, 240045, 77745, 167055, 897429, 1231635, 1066065, 1174695 ]
[ "nonn", "more" ]
A247248
[ 1, 2, 1, 4, 4, 2, 6, 8, 7, 4, 3, 8, 12, 6, 7, 16, 16, 14, 18, 4, 19, 8, 22, 8, 33, 12, 7, 40, 11, 26, 23, 32, 8, 16, 6, 32, 5, 18, 37, 24, 40, 38, 42, 8, 7, 22, 10, 32, 61, 84, 38, 12, 35, 32, 46, 40, 32, 28, 24, 44, 17, 30, 61, 64, 66, 8, 66, 16, 67, 6, 11, 32 ]
[ "nonn" ]
A184734
[ 1, 3, 5, 6, 8, 10, 11, 13, 14, 16, 18, 19, 21, 22, 24, 26, 27, 29, 31, 32, 34, 35, 37, 39, 40, 42, 44, 45, 47, 48, 50, 52, 53, 55, 56, 58, 60, 61, 63, 65, 66, 68, 69, 71, 73, 74, 76, 77, 79, 81, 82, 84, 86, 87, 89, 90, 92, 94, 95, 97, 99, 100, 102, 103, 105, 107, 108, 110, 111, 113, 115, 116, 118, 120, 121, 123, 124, 126, 128, 129, 131, 133, 134, 136, 137, 139, 141, 142, 144, 145, 147, 149, 150, 152, 154, 155, 157, 158, 160, 162, 163, 165, 166, 168, 170, 171, 173, 175, 176, 178, 179, 181, 183, 184, 186, 188, 189, 191, 192, 194 ]
[ "nonn" ]
A028887
[ 1, 6, 18, 24, 42, 6, 72, 48, 90, 78, 18, 72, 168, 84, 144, 24, 186, 108, 234, 120, 42, 192, 216, 144, 360, 6, 252, 240, 336, 180, 72, 192, 378, 288, 324, 48, 546, 228, 360, 336, 90, 252, 576, 264, 504, 78, 432, 288, 744, 342, 18, 432, 588, 324, 720, 72, 720, 480 ]
[ "nonn" ]
A119012
[ 0, 0, 1, 5, 23, 98, 405, 1644, 6604, 26356, 104746, 415155, 1642493, 6490622, 25629581, 101156936, 399151400, 1574818496, 6213255614, 24515233082, 96739530062, 381803092580, 1507141137026, 5950525214360, 23498966702808 ]
[ "nonn" ]
A191903
[ 0, 8, 40, 128, 312, 648, 1200, 2048, 3280, 5000, 7320, 10368, 14280, 19208, 25312, 32768, 41760, 52488, 65160, 80000, 97240, 117128, 139920, 165888, 195312, 228488, 265720, 307328, 353640, 405000, 461760, 524288, 592960, 668168, 750312 ]
[ "nonn", "easy" ]
A314699
[ 1, 5, 9, 13, 17, 25, 28, 32, 37, 44, 46, 54, 53, 63, 67, 70, 73, 84, 83, 90, 94, 98, 105, 109, 110, 120, 124, 126, 130, 140, 139, 147, 150, 156, 160, 168, 165, 176, 182, 180, 188, 197, 195, 204, 208, 210, 218, 224, 220, 235 ]
[ "nonn" ]
A287654
[ 1, 2, 2, 2, 4, 4, 4, 4, 6, 8, 8, 6, 8, 8, 8, 8, 10, 14, 16, 12, 14, 14, 14, 16, 16, 16, 16, 14, 16, 16, 16, 16, 20, 26, 24, 24, 24, 24, 24, 24, 28, 28, 22, 28, 30, 30, 28, 30, 32, 32, 32, 32, 30, 32, 32, 32, 32, 32, 32, 30, 32, 32, 32, 32, 40, 52, 48, 42, 44, 44, 44, 42, 44, 44, 44, 44, 52, 60, 46, 54, 56, 48, 54, 56, 48 ]
[ "nonn", "changed" ]
A358418
[ 1, 2.016969198110602e+25 ]
[ "nonn", "bref", "hard" ]
A338281
[ 3, 4, 6, 6, 9, 8, 12, 12, 15, 12, 18, 14, 21, 20, 24, 18, 27, 20, 30, 28, 33, 24, 36, 30, 39, 36, 42, 30, 45, 32, 48, 44, 51, 42, 54, 38, 57, 52, 60, 42, 63, 44, 66, 60, 69, 48, 72, 56, 75, 68, 78, 54, 81, 66, 84, 76, 87, 60, 90, 62, 93, 84, 96, 78, 99, 68 ]
[ "nonn" ]
A091731
[ 0, 0, 0, 0, 1, 1, 2, 0, 0, 3, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 2, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2 ]
[ "nonn", "more" ]
A238512
[ 295, 14407, 2074468, 232354383, 27474561391, 3210307720768, 376089959883919, 44034161734024290, 5156342833939923000, 603784568551904200000, 7.070088028774169e+22, 8.278793823713613e+24 ]
[ "nonn" ]
A219913
[ 21, 21, 308, 2215, 16159, 105936, 715430, 4968426, 34708110, 235821971, 1533422780, 9520703855, 56784842083, 327953470848, 1845044605038, 10141820371575, 54522037417751, 286787858534562, 1477004659546184 ]
[ "nonn" ]
A060535
[ 1, 10, 15, 30, 165, 430, 1170, 3180, 7935, 18610, 40948, 84570, 164740, 304690, 538630, 915574, 1504135, 2398460, 3725495, 5653790, 8404075, 12261860, 17592335, 24857870, 34638440, 47655326, 64798470, 87157890, 116059590 ]
[ "easy", "nonn" ]
A300115
[ 0, 1, 1, 1, 3, 1, 2, 7, 7, 2, 3, 13, 15, 13, 3, 5, 23, 29, 29, 23, 5, 8, 49, 63, 112, 63, 49, 8, 13, 99, 199, 515, 515, 199, 99, 13, 21, 189, 629, 2713, 3776, 2713, 629, 189, 21, 34, 383, 1837, 12669, 28935, 28935, 12669, 1837, 383, 34, 55, 777, 5397, 59569, 212470 ]
[ "nonn", "tabl" ]
A145988
[ 3, 11, 223, 227, 491, 499, 503, 36607, 39703, 183283, 241727, 241739, 241771, 9177607, 9177611, 95949631, 105639463, 341118731, 727335359, 727335379, 1786054619, 1786054631, 22964264759, 54870713999, 79263248759 ]
[ "nonn" ]
A385182
[ 5, 7, 9, 11, 11, 13, 14, 15, 17, 17, 19, 19, 20, 21, 23, 23, 23, 25, 26, 27, 27, 29, 29, 29, 31, 31, 32, 33, 34, 35, 35, 35, 37, 38, 39, 39, 39, 41, 41, 41, 43, 43, 44, 44, 45, 47, 47, 47, 47, 49, 49, 50, 51, 51, 53, 53, 53, 54, 55, 55, 55, 56, 57, 59, 59 ]
[ "nonn" ]
A108261
[ 2, 3, 12, 65, 374, 2175, 12672, 73853, 430442, 2508795, 14622324, 85225145, 496728542, 2895146103, 16874148072, 98349742325, 573224305874, 3340996092915, 19472752251612, 113495517416753, 661500352248902, 3855506596076655, 22471539224211024 ]
[ "nonn" ]
A099108
[ 3, 4, 8, 11, 18, 19, 21, 40, 44, 53, 59, 73, 82, 100, 104, 107, 108, 118, 125, 127, 135, 148, 156, 161, 171, 181, 184, 185, 199, 214, 215, 232, 237, 240, 242, 267, 277, 283, 286, 292, 305, 317, 326, 330, 346, 350, 351, 377, 379, 381, 403, 405, 406, 425, 438 ]
[ "nonn" ]
A050746
[ 0, 1, 2, 3, 4, 5, 7, 8, 9, 11, 12, 13, 14, 15, 16, 19, 24, 25, 26, 27, 28, 29, 32, 36, 46, 52, 56, 57, 61, 62, 63, 71, 74, 79, 82, 83, 91, 101, 107, 111, 125, 132, 135, 136, 147, 149, 152, 153, 154, 159, 161, 163, 171, 173, 175, 194, 204, 207, 211, 212, 221, 225, 227 ]
[ "nonn", "base" ]
A102090
[ 47, 228, 1511, 9213, 57536, 356863, 2217871, 13775700, 85579087, 531616825, 3302453192, 20515048427, 127440964999, 791672146068, 4917923140383, 30550483740725, 189781751728736, 1178937572877255, 7323643025265351 ]
[ "nonn" ]
A093024
[ 3, 17, 22, 36, 41, 55, 60, 79, 84, 98, 102, 116, 121, 135, 140, 159, 164, 178, 183, 197, 201, 215, 220, 239, 244, 258, 263, 277, 282, 296, 300, 319, 324, 338, 343, 357, 362, 376, 381, 395, 404, 418, 423, 437, 442, 456, 461, 475, 480, 499, 507, 512, 526, 531 ]
[ "easy", "nonn", "base" ]
A142444
[ 281, 379, 673, 967, 1163, 2143, 2339, 2437, 2633, 2731, 2927, 3221, 3319, 3613, 3907, 4201, 4397, 4691, 4789, 5279, 5573, 5867, 6553, 7043, 8219, 8317, 8513, 8807, 9199, 9689, 9787, 11159, 11257, 11551, 12041, 12433, 12923, 13217, 13903, 14197, 15373 ]
[ "nonn", "easy" ]
A245762
[ 1, 3, 9, 24, 56, 132 ]
[ "nonn", "more" ]
A081756
[ 1, 12, 56, 360, 992, 2016, 16256, 120960, 131040, 1571328, 8714160, 67100672, 94279680, 182131200, 571963392, 1379454720, 4428914688, 5517818880, 17179738112, 70912195200, 153003540480, 159991977600, 175445913600, 265734881280, 274877382656, 612014161920 ]
[ "nonn" ]
A262836
[ 2, 3, 5, 7, 17, 29, 31, 37, 41, 67, 79, 97, 101, 109, 139, 149, 151, 229, 269, 271, 311, 367, 457, 491, 701, 797, 829, 857, 911, 929, 977, 1039, 1129, 1181, 1231, 1381, 1429, 1481, 1637, 1759, 1861, 1949, 1951, 2011, 2281, 2297, 2467, 2521, 2557, 2659, 2671 ]
[ "nonn", "easy", "base" ]
A322891
[ 1, 1, 1, 2, 2, 3, 9, 6, 8, 6, 11, 42, 45, 84, 44, 48, 24, 50, 227, 310, 717, 620, 908, 400, 384, 120, 274, 1425, 2277, 6165, 6917, 12330, 9108, 11400, 4384, 3840, 720, 1764, 10264, 18375, 56367, 74991, 154877, 149982, 225468, 147000, 164224, 56448, 46080, 5040, 13068, 83692, 163585, 556640, 838554, 1948268, 2254625, 3896536, 3354216, 4453120, 2617360, 2678144, 836352, 645120, 40320, 109584, 763244, 1601460, 5955777, 9882432, 25330938, 33402132, 64599201, 66804264, 101323752, 79059456, 95292432, 51246720, 48847616, 14026752, 10321920 ]
[ "nonn", "tabf" ]
A341934
[ 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 73, 101, 107, 109, 137, 191, 199, 251, 257, 293, 317, 349, 353, 421, 461, 571, 647, 659, 683, 773, 787, 811, 827, 853, 859, 877, 883, 887, 919, 929, 941, 997, 1031, 1087, 1319, 1429, 1453, 1471, 1481, 1483, 1543, 1567, 1627, 1697, 1699, 1721, 1723, 1753, 1789 ]
[ "nonn" ]
A077689
[ 1, 25, 36, 4, 529, 64, 729, 81, 9, 16, 225, 324, 49, 576, 625, 784, 841, 900, 100, 256, 361, 400 ]
[ "base", "nonn" ]
A026143
[ 1, 3, 5, 2, 8, 9, 11, 4, 14, 15, 17, 6, 20, 7, 23, 24, 26, 27, 29, 10, 32, 33, 35, 12, 38, 13, 41, 42, 44, 45, 47, 16, 50, 51, 53, 18, 56, 19, 59, 60, 62, 21, 65, 22, 68, 69, 71, 72, 74, 25, 77, 78, 80, 81, 83, 28, 86, 87, 89, 30, 92, 31, 95, 96, 98, 99, 101, 34, 104 ]
[ "nonn" ]
A017635
[ 4782969, 1801088541, 42618442977, 373669453125, 1954897493193, 7446353252589, 22876792454961, 60170087060757, 140710042265625, 300124211606973, 594467302491009, 1107984764452581, 1962637152460137, 3329565857578125, 5442680797299153, 8614550657858229 ]
[ "nonn", "easy" ]
A300232
[ 1, 2, 2, 3, 2, 4, 2, 5, 6, 7, 2, 8, 2, 9, 10, 11, 2, 12, 2, 12, 13, 14, 2, 15, 16, 17, 18, 19, 2, 20, 2, 21, 22, 23, 24, 25, 2, 26, 27, 28, 2, 29, 2, 30, 31, 32, 2, 33, 34, 35, 36, 37, 2, 38, 27, 39, 40, 41, 2, 42, 2, 43, 44, 45, 46, 47, 2, 48, 49, 47, 2, 50, 2, 51, 52, 53, 46, 54, 2, 55, 56, 57, 2, 58, 40, 59, 60, 61, 2, 62, 36, 63, 64, 65, 66, 67, 2, 68, 69 ]
[ "nonn" ]
A191439
[ 1, 2, 3, 5, 7, 4, 12, 17, 10, 6, 29, 41, 24, 14, 8, 70, 99, 58, 34, 19, 9, 169, 239, 140, 82, 46, 22, 11, 408, 577, 338, 198, 111, 53, 27, 13, 985, 1393, 816, 478, 268, 128, 65, 31, 15, 2378, 3363, 1970, 1154, 647, 309, 157, 75, 36, 16, 5741, 8119, 4756 ]
[ "nonn", "tabl" ]
A351061
[ 1, 5, 3, 2, 4, 3, 4, 4, 3, 4, 5, 6, 4, 5, 6, 4, 5, 6, 5, 6, 6, 5, 7, 6, 5, 7, 6, 6, 7, 6, 7, 7, 6, 7, 7, 6, 7, 7, 8, 7, 7, 8, 7, 8, 8, 7, 8, 8, 7, 8, 9, 8, 8, 9, 8, 8, 9, 8, 9, 9, 8, 9, 9, 8, 9, 9, 9, 10, 9, 9, 10, 9, 9, 10, 9, 10, 10, 9, 10, 10, 9, 10, 10, 10 ]
[ "nonn" ]
A349453
[ 1, -3, -9, -18, -81, -189, -729, -2052, -6480, -19197, -59049, -175446, -531441, -1589949, -4781511, -14335704, -43046721, -129097152, -387420489, -1162141182, -3486771279, -10459998909, -31381059609, -94142073420, -282429529920, -847285420797, -2541865710960, -7625587899366, -22876792454961, -68630348286531 ]
[ "sign" ]
A039252
[ 0, 1, 2, 3, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 29, 30, 31, 32, 33, 35, 36, 37, 38, 39, 41, 42, 43, 44, 45, 47, 58, 60, 61, 62, 63, 65, 66, 67, 68, 69, 71, 72, 73, 74, 75, 77, 78, 79, 80, 81, 83, 84, 85, 86, 87, 89, 90, 91, 92, 93 ]
[ "nonn", "base", "easy" ]
A118999
[ 1, 0, 32, 240, 11904, 533568, 134217728, 22741568512, 16885168208896 ]
[ "nonn", "more" ]
A256752
[ 1, 3, 11, 44, 190, 859, 4015, 19248, 94117, 467575, 2353443, 11975568, 61505088, 318406927, 1659801852, 8704865907, 45898065978, 243163198928, 1293769867676, 6910165762943, 37036898772008, 199140325574519, 1073849938338566 ]
[ "nonn" ]
A001003
[ 1, 1, 3, 11, 45, 197, 903, 4279, 20793, 103049, 518859, 2646723, 13648869, 71039373, 372693519, 1968801519, 10463578353, 55909013009, 300159426963, 1618362158587, 8759309660445, 47574827600981, 259215937709463, 1416461675464871 ]
[ "nonn", "easy", "nice", "core", "changed" ]
A364244
[ 1, 25, 1441, 107353, 9073501, 826861993, 79219824685, 7865844936025, 802198564524325, 83532710607121520, 8844234718023010000, 949244022625120200000, 1.030441772254329e+23, 1.1293765432962618e+25, 1.2480388750783277e+27 ]
[ "nonn", "easy" ]
A358863
[ 4, 28, 16, 176, 4950, 8910, 1408, 346500, 277992, 7542080, 326656, 544320, 120400000, 145213440, 48549888, 4733575168, 536813568, 2149576704, 3057500160, 938539560960, 1358951178240, 36324805836800, 99956555776, 49212503949312, 118747221196800, 59461613912064, 13749193801728 ]
[ "nonn" ]
A387462
[ 15, 35, 51, 87, 91, 95, 115, 119, 123, 143, 159, 187, 215, 235, 247, 255, 259, 267, 287, 295, 299, 303, 319, 323, 335, 339, 371, 391, 395, 403, 407, 411, 415, 427, 435, 447, 451, 455, 511, 515, 519, 527, 535, 551, 559, 583, 591, 595, 611, 623, 635, 667, 671, 679 ]
[ "nonn" ]
A163634
[ 11, 39, 111, 219, 759, 1011, 2379, 3279, 4899, 5511, 6159, 8319, 13611, 19011, 25311, 26679, 38919, 47739, 49611, 61599, 72579, 79599, 97239, 105339, 108111, 119559, 125499, 189111, 208011, 227811, 274539, 288039, 297219, 340311, 365511, 370659 ]
[ "nonn" ]
A324231
[ 0, 0, 0, 0, 0, 0, 0, 0, 1, 6, 156, 36327, 77423446, 349501900040 ]
[ "nonn", "more" ]
A044657
[ 25, 106, 187, 233, 268, 349, 430, 511, 592, 673, 754, 835, 916, 962, 997, 1078, 1159, 1240, 1321, 1402, 1483, 1564, 1645, 1691, 1726, 1807, 1888, 1969, 2105, 2131, 2212, 2293, 2374, 2420, 2455, 2536, 2617, 2698, 2779, 2860 ]
[ "nonn", "base" ]
A354657
[ 1, 9, 49, 210, 765, 2492, 7434, 20700, 54420, 136360, 327789, 760102, 1707342, 3728025, 7935525, 16507152, 33624045, 67186077, 131891825, 254710260, 484474753, 908538081, 1681364124, 3073166600, 5551851375, 9919925145, 17541289017, 30714092066, 53279031420 ]
[ "nonn" ]
A114978
[ 1, 3, 5, 6, 7, 8, 9, 15, 21, 24, 27, 33, 36, 39, 51, 63, 69, 75, 81, 87, 99, 105, 111, 114, 118, 123, 135, 153, 165, 171, 183, 207, 213, 219, 231, 243, 249, 255, 267, 279, 309, 315, 348, 351, 363, 375, 387, 393, 399, 423, 435, 453, 465, 471, 495, 501 ]
[ "nonn" ]
A038538
[ 1, 1, 1, 2, 1, 1, 1, 3, 2, 1, 1, 2, 1, 1, 1, 6, 1, 2, 1, 2, 1, 1, 1, 3, 2, 1, 3, 2, 1, 1, 1, 8, 1, 1, 1, 4, 1, 1, 1, 3, 1, 1, 1, 2, 2, 1, 1, 6, 2, 2, 1, 2, 1, 3, 1, 3, 1, 1, 1, 2, 1, 1, 2, 13, 1, 1, 1, 2, 1, 1, 1, 6, 1, 1, 2, 2, 1, 1, 1, 6, 6, 1, 1, 2, 1, 1, 1, 3, 1, 2, 1, 2, 1, 1, 1, 8, 1, 2, 2 ]
[ "nonn", "nice", "mult" ]
A171017
[ 7, 11, 12, 13, 14, 15, 19, 35, 39, 49, 50, 51, 54, 55, 59, 67, 71, 75, 77, 78, 79, 83, 99, 113, 114, 115, 131, 135, 139, 141, 142, 143, 147, 151, 155, 158, 159, 163, 167, 177, 178, 179, 182, 183, 193, 194, 195, 197, 198, 199, 201, 202, 203, 205, 206, 207, 209 ]
[ "nonn", "base" ]
A087532
[ 83, 38383883, 88838333, 3338388883, 3388338883, 3388833883, 3388838833, 3833388883, 3838383883, 3838388383, 3838838383, 3838883383, 3883883833, 8333888383, 8338383883, 8338888333, 8383338883, 8383388383, 8383888333, 8388338383, 8388883333, 8833383883 ]
[ "base", "nonn" ]
A376426
[ 4, 6, 6, 5, 0, 6, 3, 5, 0, 9, 4, 6, 1, 0, 9, 6, 6, 1, 6, 9, 0, 9, 3, 0, 7, 9, 2, 6, 8, 8, 2, 3, 4, 0, 4, 5, 8, 6, 7, 8, 5, 0, 6, 5, 6, 7, 2, 6, 2, 9, 7, 5, 7, 8, 5, 0, 6, 9, 7, 5, 8, 7, 2, 4, 3, 1, 4, 9, 1, 6, 2, 7, 1, 1, 3, 6, 0, 0, 0, 0, 4, 6, 3, 5, 1, 4, 3, 2, 7, 3, 3, 4, 4, 6, 5, 6, 0, 7, 1, 9 ]
[ "nonn", "cons", "easy" ]
A350491
[ 1, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 4, 4, 1, 0, 0, 0, 0, 1, 9, 25, 32, 22, 8, 1, 0, 0, 0, 0, 0, 1, 17, 92, 259, 441, 496, 379, 195, 66, 13, 1, 0, 0, 0, 0, 0, 0, 1, 28, 259, 1286, 4026, 8754, 13930, 16686, 15289, 10785, 5842, 2397, 722, 151, 19, 1 ]
[ "nonn", "tabf" ]
A330714
[ 0, 1, 1, 2, 1, 0, 2, 1, 1, 2, 0, 1, 2, 1, 1, 0, 1, 4, 2, 5, 0, 1, 1, 2, 2, 5, 1, 4, 1, 2, 0, 1, 1, 2, 4, 5, 2, 1, 5, 4, 0, 1, 1, 2, 1, 0, 2, 1, 2, 5, 5, 8, 1, 2, 4, 5, 1, 4, 2, 5, 0, 1, 1, 2, 1, 0, 2, 1, 4, 1, 5, 2, 2, 1, 1, 0, 5, 2, 4, 1, 0, 1, 1, 2, 1 ]
[ "nonn", "base" ]
A034821
[ 5, 17, 103, 127, 157, 191, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 227, 234, 235, 236, 237, 238, 258, 259, 260, 261, 262, 307, 347, 354, 355, 356, 357, 358, 431, 524, 525, 526, 527, 528, 529, 530, 531, 532, 533, 534, 535, 536, 537, 538, 539 ]
[ "nonn", "base" ]
A067472
[ 25, 225, 2025, 20164, 200704, 2002225, 20007729, 200024449, 2000057284, 20000182084, 200000361796, 2000001237796, 20000000402496, 200000010642496, 2000000040249600, 20000000215721450, 200000000447251200 ]
[ "base", "easy", "nonn" ]
A029857
[ 3, 3, 9, 28, 94, 328, 1197, 4486, 17235, 67429, 267932, 1078003, 4383784, 17987897, 74385984, 309694232, 1297037177, 5460726214, 23098296648, 98113995068, 418335662448, 1789814398035, 7681522429474, 33061825858259, 142674028869587, 617180102839217 ]
[ "nonn", "easy", "eigen" ]
A066346
[ 1, 0, 1, 0, 2, 2, 4, 9, 13, 28, 46, 84, 146, 252, 433, 736, 1242, 2087, 3482, 5791, 9587, 15823, 26038, 42743, 70016, 114485, 186903, 304728, 496260, 807395, 1312504, 2132102, 3461407, 5616609, 9109732 ]
[ "nonn", "more" ]
A039776
[ 1, 1, 1, 1, 2, 1, 3, 1, 3, 2, 6, 1, 7, 2, 4, 3, 10, 1, 11, 1, 5, 4, 14, 1, 12, 5, 10, 3, 19, 1, 20, 6, 9, 7, 13, 2, 25, 7, 10, 5, 28, 1, 29, 5, 8, 9, 32, 3, 28, 5, 14, 7, 37, 3, 18, 9, 16, 13, 42, 1, 43, 12, 15, 15, 21, 2, 48, 10, 20, 4, 51, 4, 52, 15, 12, 11, 30, 2, 57, 8, 33, 18, 60, 1 ]
[ "nonn" ]
A221446
[ 1, 3, 1, 5, 9, 1, 9, 33, 31, 1, 17, 117, 221, 105, 1, 31, 429, 1465, 1473, 355, 1, 57, 1577, 10593, 18393, 9829, 1201, 1, 105, 5785, 76055, 260557, 230845, 65569, 4063, 1, 193, 21217, 543081, 3669101, 6415089, 2897357, 437437, 13745, 1, 355, 77825, 3883061 ]
[ "nonn", "tabl" ]
A252082
[ 130, 322, 943, 2595, 7089, 19910, 55703, 155266, 434540, 1216413, 3402605, 9524573, 26668604, 74669305, 209114056, 585748112, 1640928543, 4597673521, 12884229439, 36111198006, 101225635011, 283795383806, 795763649138, 2231651536147 ]
[ "nonn" ]
A253094
[ 1, -5, 6, 2, 6, 18, 66, 278, 1296, 6528, 34950, 196578, 1151610, 6981102, 43570170, 278841438, 1823991630, 12162884778, 82498605594, 568140045918, 3966323992074, 28032955095198, 200355706872054, 1446628270673682, 10542888272710224, 77496225169484450 ]
[ "sign" ]
A299383
[ 1, 18, 44, 60, 80, 123, 429, 1166, 2065, 8774, 35340, 42968, 50312, 210129 ]
[ "nonn", "more", "hard" ]
A377485
[ 1, 2, 3, 2, 4, 5, 2, 3, 4, 7, 2, 4, 8, 3, 9, 2, 4, 5, 8, 11, 2, 3, 4, 8, 9, 13, 2, 4, 7, 8, 3, 5, 9, 2, 4, 8, 16, 17, 2, 3, 4, 8, 9, 16, 19, 2, 4, 5, 8, 16, 3, 7, 9, 2, 4, 8, 11, 16, 23, 2, 3, 4, 8, 9, 16, 5, 25, 2, 4, 8, 13, 16, 3, 9, 27, 2, 4, 7, 8, 16, 29 ]
[ "nonn", "easy", "tabf" ]
A386920
[ 1, 7, 83, 1102, 15395, 221402, 3244430, 48173244, 722264355, 10910288290, 165788618138, 2531447611524, 38807906496398, 596945491933252, 9208704207465020, 142410375212008960, 2207122379129758000, 34272045530904650000, 533075544700619600000, 8.304126391210397e+21 ]
[ "nonn" ]
A341939
[ 1, 3, 8, 10, 18, 19, 24, 30, 34, 45, 52, 57, 73, 74, 85, 102, 125, 135, 140, 152, 153, 156, 163, 182, 185, 190, 202, 219, 222, 252, 255, 333, 342, 360, 375, 394, 416, 420, 436, 451, 455, 456, 459, 476, 489, 505, 514, 546, 555, 570, 584, 606, 625, 629, 640, 646, 679, 680, 730 ]
[ "nonn" ]
A212111
[ 0, 0, 5, 48, 180, 481, 1034, 1986, 3441, 5602, 8623, 12755, 18126, 25165, 33951, 44936, 58367, 74638, 93934, 116987, 143760, 175126, 211253, 252782, 299884, 353673, 414098, 482057, 557997, 642810, 736317, 840479, 954638, 1080451 ]
[ "nonn" ]
A378609
[ 1, 1, 3, 25, 477, 18403 ]
[ "nonn", "hard", "more" ]
A148380
[ 1, 1, 2, 5, 16, 48, 160, 531, 1870, 6524, 23574, 84928, 312864, 1150386, 4293426, 16017483, 60369252, 227575756, 864161558, 3283431528, 12541744032, 47943856414, 184003950632, 706809708056, 2723270814302, 10501894049804, 40594747787924, 157054821466912, 608764065331656, 2361608766307196 ]
[ "nonn", "walk" ]
A006867
[ 1, 2, 5, 20, 107, 826, 7703, 81231, 914973, 10772406 ]
[ "nonn", "more" ]
A118445
[ 1, 25, 490, 8820, 152460, 2576574, 42942900, 709171320, 11636856660, 190068658780, 3093732938296, 50222937310000, 813611584422000, 13158602740363500, 212528020730913000, 3428785401125396500, 55266606794455400000, 890117467077758200000 ]
[ "nonn" ]
A175506
[ 1, 1, 3, 2, 1, 3, 3, 4, 9, 1, 1, 6, 3, 3, 3, 8, 1, 9, 3, 2, 3, 1, 1, 12, 5, 3, 27, 6, 1, 3, 3, 16, 3, 1, 3, 18, 3, 3, 3, 4, 1, 3, 3, 2, 9, 1, 1, 24, 21, 5, 3, 6, 1, 27, 1, 12, 3, 1, 1, 6, 3, 3, 9, 32, 3, 3, 3, 2, 3, 3, 1, 36, 3, 3, 15, 6, 3, 3, 3, 8, 81, 1, 1, 6, 1, 3, 3, 4, 1, 9, 1, 2, 3, 1, 3, 48, 3, 21, 9 ]
[ "nonn" ]
A089456
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 179, 2509, 25609, 214932, 1578984, 10536260, 65411645, 383981499, 2156114468, 11678888362, 61413242603 ]
[ "hard", "more", "nonn" ]
A130792
[ 14, 19, 28, 47, 61, 75, 122, 149, 183, 199, 244, 298, 305, 323, 366, 427, 488, 497, 549, 646, 795, 911, 969, 1292, 1301, 1499, 1822, 1999, 2087, 2602, 2733, 2998, 3089, 3248, 3379, 3644, 3903, 4555, 4997, 5204, 5466, 6178, 6377, 6496, 6505, 7288, 7806, 7995 ]
[ "base", "nonn" ]
A319048
[ 2, 6, 2, 12, 2, 18, 2, 30, 2, 22, 2, 42, 2, 6, 2, 60, 2, 54, 2, 66, 2, 46, 2, 90, 2, 6, 2, 58, 2, 62, 2, 120, 2, 6, 2, 126, 2, 6, 2, 150, 2, 98, 2, 138, 2, 94, 2, 210, 2, 22, 2, 106, 2, 162, 2, 174, 2, 118, 2, 198, 2, 6, 2, 240, 2, 134, 2, 12, 2, 142, 2, 270, 2, 6, 2, 12, 2, 158, 2, 330 ]
[ "nonn" ]
A288580
[ 1, 1, -1, 1, -1, 4, 1, 1, -4, -36, 1, 1, -2, 9, 576, 1, 1, -4, -9, 64, -14400, 1, 1, 2, -3, -8, -225, 518400, 1, 1, 2, -6, -16, 40, -2304, -25401600, 1, 1, 2, -9, -4, -15, 324, 11025, 1625702400, 1, 1, 2, 3, -8, -25, 144, 280, 147456, -131681894400, 1, 1, 2, 3, -12, -5, -24, 105, -2240, -893025, 13168189440000 ]
[ "sign", "tabl" ]