id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A030103
[ 0, 1, 2, 3, 1, 5, 9, 13, 2, 6, 10, 14, 3, 7, 11, 15, 1, 17, 33, 49, 5, 21, 37, 53, 9, 25, 41, 57, 13, 29, 45, 61, 2, 18, 34, 50, 6, 22, 38, 54, 10, 26, 42, 58, 14, 30, 46, 62, 3, 19, 35, 51, 7, 23, 39, 55, 11, 27, 43, 59, 15, 31, 47, 63, 1, 65, 129, 193, 17, 81, 145, 209, 33, 97, 161 ]
[ "nonn", "base", "look", "easy" ]
A177317
[ 1, 2, 48, 2288, 135040, 8956752, 640160976, 48203722464, 3772321496064, 304100156874800, 25098440923318050, 2111488538062121000, 180477438192133200000, 1.563382390223568e+22, 1.3698371178845206e+24, 1.2121604129533936e+26, 1.0819157637786569e+28 ]
[ "nonn" ]
A058663
[ 0, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 7, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 7, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 23, 1, 1, 1, 1, 1, 5, 1, 1, 1, 1, 1, 3, 1, 1, 21, 1, 1, 3, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 3, 1, 1, 1 ]
[ "nonn" ]
A109656
[ 1, 13, 15, 22, 25, 107, 115, 149, 163, 472, 808, 1347, 1979, 27594, 77150 ]
[ "nonn", "base" ]
A080324
[ 1, 2, 6, 10, 14, 15, 21, 22, 26, 30, 33, 34, 35, 38, 39, 42, 46, 51, 55, 57, 58, 62, 65, 66, 69, 70, 74, 77, 78, 82, 85, 86, 87, 91, 93, 94, 95, 102, 106, 110, 111, 114, 115, 118, 119, 122, 123, 129, 130, 133, 134, 138, 141, 142, 143, 145, 146, 154, 155, 158, 159, 161 ]
[ "nonn" ]
A061867
[ 0, 1, 4, 9, 49, 100, 144, 289, 400, 441, 900, 1024, 1089, 1444, 1600, 2025, 2209, 2304, 2401, 2500, 2601, 2704, 2809, 3025, 3600, 4096, 4900, 5041, 6084, 6400, 7056, 7744, 8100, 9025, 9409, 9604, 9801, 10000, 10201, 10404, 10609, 10816, 11025, 11236 ]
[ "base", "easy", "nonn" ]
A321056
[ 0, 2803418, 49942371, 605109972, 6030258697, 53315654282, 437476633564, 3434708277908, 26357552759183, 200667318966580, 1531612782695209, 11845709562106324, 93455676821980370, 746513630305265400, 6002963117390581000, 48383934184947640000, 389641866674965450000 ]
[ "nonn" ]
A128678
[ 1, 5, 205, 505, 20705, 40505, 168305, 408545, 1342505, 1660705, 2084645, 4091005, 10201505, 16322105, 16750345, 16998805, 37217545, 49985405, 55042705, 117165905, 135593005, 167731205, 186678805, 210549145, 218301905, 418261705 ]
[ "hard", "nonn" ]
A328315
[ 1, 2, 2, 3, 2, 4, 2, 5, 6, 7, 2, 8, 2, 9, 10, 11, 2, 12, 2, 13, 14, 15, 2, 16, 14, 17, 18, 11, 2, 7, 2, 12, 19, 20, 5, 21, 2, 12, 8, 22, 2, 23, 2, 24, 25, 26, 2, 27, 19, 28, 29, 30, 2, 31, 8, 32, 33, 34, 2, 35, 2, 36, 37, 38, 39, 40, 2, 41, 42, 43, 2, 44, 2, 25, 45, 46, 39, 47, 2, 48, 49, 50, 2, 51, 33, 28, 11, 52, 2, 53, 29, 54, 55, 35, 13, 56, 2, 57, 58, 52 ]
[ "nonn" ]
A103434
[ 0, 1, 10, 74, 515, 3540, 24276, 166405, 1140574, 7817630, 53582855, 367262376, 2517253800, 17253514249, 118257345970, 810547907570, 5555578007051, 38078498141820, 260993908985724, 1788878864758285, 12261158144322310 ]
[ "nonn", "easy" ]
A378495
[ 0, 0, 0, 0, 2, 0, 0, 6, 9, 3, 0, 24, 24, 44, 20, 0, 160, 225, 175, 265, 145, 0, 1140, 1224, 1434, 1350, 1854, 1134, 0, 8988, 11025, 12313, 12145, 11473, 14833, 9793, 0, 80864, 93456, 100232, 106280, 113336, 107576, 133496, 93176, 0, 809856, 965601, 1057761, 1141425, 1108161, 1162161, 1108161, 1334961, 972081 ]
[ "nonn", "tabl" ]
A206935
[ 81, 6561, 165783, 3227589, 48992069, 659747611, 8138711727, 95444167901, 1083046694943, 12066441712663, 133097165591799, 1461908430267595, 16040101557258780, 176117037501045900, 1936527748635116800 ]
[ "nonn" ]
A064904
[ 91, 187, 247, 287, 391, 581, 667, 671, 679, 913, 923, 973, 1147, 1169, 1261, 1267, 1397, 1561, 1591, 1639, 1757, 1919, 1927, 1937, 2051, 2123, 2149, 2443, 2491, 2641, 2933, 2951, 3031, 3091, 3127, 3227, 3281, 3521, 3817, 3841, 3859, 4087, 4109, 4207 ]
[ "nonn" ]
A315502
[ 1, 6, 11, 16, 23, 29, 35, 38, 45, 51, 58, 61, 67, 73, 80, 85, 90, 96, 102, 107, 112, 119, 125, 131, 134, 141, 147, 154, 157, 163, 169, 176, 181, 186, 192, 198, 203, 208, 215, 221, 227, 230, 237, 243, 250, 253, 259, 265, 272, 277 ]
[ "nonn" ]
A160912
[ 1, 7, 17, 27, 37, 47, 57, 67, 77, 87, 97, 107, 117, 127, 137, 147, 157, 167, 177, 187, 197, 207, 217, 227, 237, 247, 257, 267, 277, 287, 297, 307, 317, 327, 337, 347, 357, 367, 377, 387, 397, 407, 417, 427, 437, 447 ]
[ "nonn" ]
A087240
[ 25, 87, 240, 774, 1960, 5378, 15828, 40420, 110477, 306255, 823267, 2219935, 6035446, 16314684, 44245201, 119849369, 324308909, 879921037, 2385657333, 6467079803, 17541637367, 47581552613, 129104928784, 350330765356, 950772205549, 2580621276899, 7005302330033 ]
[ "nonn" ]
A145788
[ 1, 2, 1, 1, 2, 2, 2, 3, 5, 5, 5, 7, 9, 10, 11, 14, 18, 20, 22, 27, 32, 36, 40, 48, 57, 63, 70, 82, 95, 106, 119, 137, 158, 175, 195, 222, 252, 280, 311, 352, 397, 439, 486, 546, 611, 676, 747, 834, 929, 1024, 1128, 1253, 1389, 1528, 1679, 1857, 2052, 2250 ]
[ "nonn" ]
A261780
[ 1, 1, 0, 1, 1, 0, 1, 2, 2, 0, 1, 3, 7, 4, 0, 1, 4, 15, 24, 8, 0, 1, 5, 26, 73, 82, 16, 0, 1, 6, 40, 164, 354, 280, 32, 0, 1, 7, 57, 310, 1031, 1716, 956, 64, 0, 1, 8, 77, 524, 2395, 6480, 8318, 3264, 128, 0, 1, 9, 100, 819, 4803, 18501, 40728, 40320, 11144, 256, 0 ]
[ "nonn", "tabl" ]
A187399
[ 12429793, 124097, 14239807, 135697, 7561, 15209167, 702991 ]
[ "nonn", "fini", "full" ]
A193568
[ 38, 58, 73, 83, 116, 119, 161, 166, 191, 235, 253, 299, 307, 308, 325, 352, 357, 370, 375, 380, 468, 486, 489, 498, 523, 532, 537, 573, 611, 616, 648, 661, 679, 684, 697, 703, 730, 735, 753, 769, 796, 803, 830, 846, 849, 864, 894, 911, 929, 948, 967, 976 ]
[ "nonn", "base" ]
A063922
[ 72, 94, 107, 144, 188, 214, 216, 282, 288, 321, 360, 365, 376, 415, 427, 428, 432, 435, 470, 480, 503, 504, 530, 535, 553, 564, 575, 576, 642, 648, 650, 658, 700, 703, 716, 720, 729, 730, 744, 749, 752, 764, 792, 804, 830, 846, 848, 851, 854, 856, 864, 870 ]
[ "nonn" ]
A133209
[ 3, 2, 0, 0, 8, 32, 80, 160, 288, 512, 960, 1920, 3968, 8192, 16640, 33280, 66048, 131072, 261120, 522240, 1046528, 2097152, 4198400, 8396800, 16785408, 33554432, 67092480, 134184960, 268402688, 536870912, 1073807360, 2147614720 ]
[ "nonn", "easy" ]
A106477
[ 1, 1, 3, 3, 7, 5, 13, 9, 19, 13, 29, 17, 41, 23, 49, 31, 65, 37, 83, 45, 95, 55, 117, 63, 137, 75, 155, 87, 183, 95, 213, 111, 233, 127, 257, 139, 293, 157, 317, 173, 357, 185, 399, 205, 423, 227, 469, 243, 511, 263, 543, 287, 595, 305, 635, 329, 671, 357, 729, 373 ]
[ "easy", "nonn" ]
A222029
[ 1, 1, 3, 1, 16, 9, 2, 125, 93, 32, 6, 1296, 1155, 480, 150, 24, 20, 16807, 17025, 7880, 3240, 864, 840, 262144, 292383, 145320, 71610, 24192, 26250, 720, 0, 0, 504, 0, 420, 4782969, 5752131, 3009888, 1692180, 653184, 773920, 46080, 5040, 0, 32256, 0, 26880, 0, 0, 2688 ]
[ "nonn", "look", "tabf" ]
A160366
[ 1, 0, 0, 5, 11, 0, 1986, 52060, 34564884, 440956473828 ]
[ "hard", "more", "nonn" ]
A351404
[ 3, 9, 8, 7, 6, 1, 0, 8, 8, 1, 0, 8, 4, 1, 8, 8, 1, 2, 4, 0, 7, 4, 3, 0, 5, 4, 4, 4, 0, 0, 2, 7, 3, 0, 6, 0, 3, 3, 6, 8, 0, 8, 9, 1, 5, 4, 6, 7, 1, 9, 8, 1, 2, 7, 2, 9, 9, 5, 7, 4, 4, 4, 5, 7, 6, 9, 2, 7, 9, 1, 7, 2, 0, 3, 6, 3, 8, 6, 0, 2, 9, 2, 5, 9, 7, 0, 6, 5, 4, 8, 4, 8, 7, 3, 7, 0, 2, 4, 9, 6, 5, 4, 4, 4, 3 ]
[ "nonn", "cons" ]
A067767
[ 4, 90, 1349, 17220, 203568, 2312094, 25691670, 282000444, 3074136464, 33387698708, 361969672904, 3921901043440, 42499598861832, 460831546801414, 5001468564165262, 54341248085414380 ]
[ "nonn" ]
A021868
[ 0, 0, 1, 1, 5, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7, 4, 0, 7 ]
[ "nonn", "cons" ]
A360753
[ 1, 0, 1, 0, -2, 1, 0, 1, -5, 1, 0, 1, 8, -9, 1, 0, 2, 4, 29, -14, 1, 0, 6, 4, -10, 75, -20, 1, 0, 24, 4, -41, -115, 160, -27, 1, 0, 120, -8, -147, -196, -490, 301, -35, 1, 0, 720, -136, -624, -392, -231, -1484, 518, -44, 1 ]
[ "sign", "easy", "tabl" ]
A232741
[ 1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 55, 56, 57, 58, 59, 61, 62, 63, 64, 65, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76 ]
[ "nonn" ]
A223006
[ 1, 4, 10, 34, 101, 331, 1044, 3406, 11008, 36039, 117866, 387709, 1276783, 4217763, 13954040, 46258390, 153562565, 510523621, 1699272620, 5662498639, 18888082230, 63062936820, 210730527620, 704727803329, 2358457291626, 7898146040191 ]
[ "nonn" ]
A305053
[ 0, -1, 0, -1, 0, -1, 0, -1, 1, -1, 0, -1, 1, -1, 0, -1, 0, 0, 0, -1, 0, -1, 0, -1, 1, 0, 2, -1, 1, -1, 0, -1, 0, -1, 0, 0, 1, -1, 1, -1, 0, -1, 1, -1, 1, -1, 1, -1, 1, 0, 0, 0, 0, 1, 0, -1, 0, 0, 0, -1, 1, -1, 1, -1, 1, -1, 0, -1, 0, -1, 1, 0, 1, 0, 1, -1, 0 ]
[ "sign" ]
A348930
[ 1, 1, 4, 7, 2, 4, 8, 5, 13, 2, 4, 28, 14, 8, 8, 31, 2, 13, 20, 14, 32, 4, 8, 20, 31, 14, 40, 56, 10, 8, 32, 7, 16, 2, 16, 91, 38, 20, 56, 10, 14, 32, 44, 28, 26, 8, 16, 124, 19, 31, 8, 98, 2, 40, 8, 40, 80, 10, 20, 56, 62, 32, 104, 127, 28, 16, 68, 14, 32, 16, 8, 65, 74, 38, 124, 140, 32, 56, 80, 62, 121, 14, 28 ]
[ "nonn", "mult" ]
A175973
[ 14591, 11225237, 12050149, 13801993, 89186231, 119474633, 125361787, 126196387, 127491563, 128153203, 137018603, 137399173, 157801387, 213873157, 299431019, 731831437, 1146462257, 1149800857, 1236918523, 1452210367, 1712996843, 1719567953, 1918333693, 1955601727 ]
[ "base", "nonn" ]
A121205
[ 342, 438, 546, 666, 798, 942, 1098, 1266, 1446, 1638, 1842, 2058, 2286, 2526, 2778, 3042, 3318, 3606, 3906, 4218, 4542, 4878, 5226, 5586, 5958, 6342, 6738, 7146, 7566, 7998, 8442, 8898, 9366, 9846, 10338, 10842, 11358, 11886, 12426 ]
[ "easy", "nonn" ]
A174127
[ 1, 1, 1, 1, 1, 1, 1, 8, 8, 1, 1, 27, 216, 27, 1, 1, 64, 1728, 1728, 64, 1, 1, 125, 8000, 27000, 8000, 125, 1, 1, 216, 27000, 216000, 216000, 27000, 216, 1, 1, 343, 74088, 1157625, 2744000, 1157625, 74088, 343, 1, 1, 512, 175616, 4741632, 21952000, 21952000, 4741632, 175616, 512, 1 ]
[ "nonn", "tabl", "easy" ]
A121164
[ -3, -8, -5, -15, -16, -7, -24, -33, -24, -9, -35, -56, -51, -32, -11, -48, -85, -88, -69, -40, -13, -63, -120, -135, -120, -87, -48, -15, -80, -161, -192, -185, -152, -105, -56, -17, -99, -208, -259, -264, -235, -184, -123, -19, -120, -261, -336, -357, -336, -285, -216, -141 ]
[ "sign", "tabl" ]
A351308
[ 1, 1, 1, 65, 1, 1, 1, 65, 730, 1, 1, 65, 1, 1, 1, 4161, 1, 730, 1, 65, 1, 1, 1, 65, 15626, 1, 730, 65, 1, 1, 1, 4161, 1, 1, 1, 47450, 1, 1, 1, 65, 1, 1, 1, 65, 730, 1, 1, 4161, 117650, 15626, 1, 65, 1, 730, 1, 65, 1, 1, 1, 65, 1, 1, 730, 266305, 1, 1, 1, 65, 1, 1, 1, 47450, 1 ]
[ "nonn", "easy", "mult" ]
A274451
[ 1, 2, 1, 2, 1, 4, 1, 3, 2, 2, 1, 6, 1, 2, 4, 3, 1, 5, 1, 6, 4, 2, 1, 11, 2, 2, 2, 6, 1, 10, 1, 4 ]
[ "nonn" ]
A251675
[ 293, 489, 953, 2257, 5151, 12063, 29839, 72345, 176143, 435429, 1069885, 2629463, 6489171, 15986259, 39377317, 97110263, 239369633, 589963893, 1454573751, 3585822223, 8839317615, 21791873761, 53722460943, 132436498045, 326492433109 ]
[ "nonn" ]
A331862
[ 3, 26, 186, 206, 258, 3486, 12602 ]
[ "nonn", "base", "hard", "more" ]
A054276
[ 14, 22, 44, 68, 73, 113, 114, 116, 134, 141, 142, 151, 157, 175, 187, 197, 200, 214, 216, 221, 237, 247, 251, 258, 259, 285, 290, 299, 306, 315, 329, 330, 331, 335, 346, 351, 360, 361, 363, 369, 380, 385, 393 ]
[ "nonn", "base" ]
A310533
[ 1, 4, 10, 16, 22, 28, 34, 40, 46, 52, 58, 62, 66, 72, 78, 84, 90, 96, 102, 108, 114, 120, 124, 128, 134, 140, 146, 152, 158, 164, 170, 176, 182, 186, 190, 196, 202, 208, 214, 220, 226, 232, 238, 244, 248, 252, 258, 264, 270, 276 ]
[ "nonn" ]
A074958
[ 2, 4, 7, 4, 6, 8, 0, 4, 3, 6, 2, 3, 6, 3, 0, 4, 4, 6, 2, 6, 0, 6, 6, 5, 9, 6, 0, 3, 5, 9, 1, 4, 0, 1, 4, 8, 9, 2, 5, 1, 6, 7, 4, 0, 9, 4, 0, 6, 6, 7, 3, 5, 8, 6, 6, 8, 2, 6, 1, 8, 2, 7, 4, 0, 6, 3, 0, 4, 8, 5, 8, 9, 6, 2, 0, 7, 0, 0, 7, 2, 5, 2, 3, 9, 2, 6, 8, 3, 4, 9, 4, 6, 3, 8, 2, 6, 6, 9, 9, 7, 9, 9, 8, 8, 1 ]
[ "nonn", "cons" ]
A112361
[ 1, 2, 5, 8, 17, 35, 53, 107, 215, 323, 647, 971, 1943, 3887, 5831, 11663, 23327, 46655, 69983, 139967, 209951, 419903, 839807, 1259711, 2519423, 5038847, 7558271, 15116543, 22674815, 45349631, 90699263, 136048895, 272097791, 544195583 ]
[ "easy", "nonn" ]
A084594
[ 1, 4, 28, 1552, 4817152, 46409906716672, 4.3077588829003936e+27, 3.7113573186414495e+55 ]
[ "easy", "nonn" ]
A228140
[ 10, 39, 45, 58, 59, 88, 108, 116, 137, 156, 157, 186, 206, 235, 244, 255, 284, 304, 333, 334, 338, 353, 373, 382, 402, 414, 431, 451, 477, 480, 500, 529, 533, 549, 578, 598, 623, 627, 647, 665, 676, 685, 696, 717, 725, 745, 774, 794, 822, 823, 843, 845, 872, 892, 902, 912, 921, 941 ]
[ "nonn" ]
A378005
[ 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 3, 1, 0, 0, 0, 1, 6, 6, 1, 0, 0, 1, 10, 20, 10, 1, 1, 1, 15, 50, 50, 15, 6, 7, 21, 105, 175, 105, 36, 42, 49, 196, 490, 490, 231, 183, 217, 392, 1176, 1764, 1246, 785, 946, 1141, 2646, 5292, 5418, 3613, 3664, 4390, 6601, 14112, 19614 ]
[ "easy", "nonn" ]
A105987
[ 166, 466, 566, 626, 662, 667, 669, 766, 866, 4666, 5666, 6166, 6626, 6646, 6662, 6663, 6667, 6686, 6866, 7666, 46666, 62666, 65666, 66166, 66662, 66667, 66686, 76666, 616666, 626666, 646666, 656666, 662666, 666466, 666566, 666646, 666661, 666662 ]
[ "base", "nonn" ]
A072397
[ 2, 21, 8, 6765, 2584, 144, 832040, 86267571272, 46368, 14930352, 3.0960598847965113e+28, 4807526976, 160500643816367100, 498454011879264, 1.6641027750620564e+22, 51680708854858330000, 3.450797306083728e+43 ]
[ "nonn" ]
A121361
[ 1, 1, 1, 1, 0, 1, 1, 2, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 0, 2, 2, 1, 1, 0, 1, 0, 1, 2, 0, 1, 1, 0, 2, 0, 2, 1, 0, 1, 1, 1, 1, 2, 1, 0, 1, 2, 1, 0, 0, 1, 1, 1, 1, 0, 0, 2, 1, 2, 0, 1, 1, 1, 2, 1, 1, 0, 1, 1, 0, 1, 1, 2, 1, 0, 1, 1, 3, 0, 0, 1, 0, 1, 0, 0, 2, 1, 1, 1, 1, 1, 2, 0, 1, 0, 2, 2, 1, 3, 0, 0, 0, 1, 0, 0 ]
[ "nonn" ]
A126388
[ 2, 3, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 22, 23, 26, 27, 28, 29, 30, 31, 32, 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, 64, 65, 66, 67, 68, 69, 72, 73, 78, 79, 80, 81, 86, 87, 90, 91, 92 ]
[ "base", "nonn" ]
A149591
[ 1, 1, 5, 15, 57, 217, 881, 3531, 14669, 61597, 262017, 1119747, 4841949, 21082509, 92245027, 405547121, 1793600501, 7962983781, 35463175171, 158509162139, 710946989375, 3196527500661, 14406394048147, 65098008529837, 294809429733405, 1337492654076381, 6079430868577281, 27685286007842800 ]
[ "nonn", "walk" ]
A030557
[ 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 5, 2, 2, 2, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1 ]
[ "nonn", "base" ]
A136169
[ 1, 2, 3, 5, 9, 16, 30, 58, 113, 223, 443, 882, 1760, 3516, 7027, 14049, 28093, 56180, 112354, 224702, 449397, 898787, 1797567, 3595126, 7190244, 14380480, 28760951, 57521893, 115043777, 230087544, 460175078, 920350146, 1840700281, 3681400551 ]
[ "nonn", "easy" ]
A136997
[ 1, 2, 11, 12, 21, 22, 28, 88, 122, 221, 278, 418, 421, 471, 472, 478, 1478, 1488, 2778, 2878, 4141, 4271, 4721, 8472, 8878, 11141, 14771, 21171, 21778, 27771, 27878, 84722, 88418, 88471, 112778, 112878, 118818, 211488, 272841, 277818, 287771, 414418, 422222, 477778, 878221, 884428, 1128222, 1214171, 1477221, 1477421, 2174278, 2178818, 2184441 ]
[ "base", "nonn" ]
A087408
[ 51, 1, 52, 2, 53, 3, 54, 4, 55, 5, 56, 6, 57, 7, 58, 8, 59, 9, 51, 0, 10, 51, 10, 11, 51, 20, 12, 51, 30, 13, 51, 40, 14, 51, 50, 15, 51, 60, 16, 51, 70, 17, 51, 80, 18, 51, 90, 19, 52, 0, 20, 52, 10, 21, 52, 20, 22, 52, 30, 23, 52, 40, 24, 52, 50, 25, 52, 60, 26, 52, 70, 27, 52, 80 ]
[ "nonn", "easy", "base" ]
A052657
[ 0, 0, 2, 6, 48, 240, 2160, 15120, 161280, 1451520, 18144000, 199584000, 2874009600, 37362124800, 610248038400, 9153720576000, 167382319104000, 2845499424768000, 57621363351552000, 1094805903679488000, 24329020081766400000, 510909421717094400000, 1.2364008005553684e+22 ]
[ "easy", "nonn" ]
A292273
[ 0, 1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, 1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, 1, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, -1, 0, 0, 0, 1, 0, 0, 0, -1, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0 ]
[ "sign", "easy" ]
A259879
[ 1, 1, -1, 1, -3, 2, 1, -6, 17, -18, 1, -10, 59, -170, 168, 1, -15, 145, -765, 1954, -1920, 1, -21, 295, -2415, 11224, -27084, 25920, 1, -28, 532, -6160, 44359, -190372, 438948, -418320 ]
[ "sign", "tabl", "more" ]
A330895
[ 0, 0, 0, 2, 29, 46, 3049, 60574, 160599, 182789, 4913659, 1072364, 975570703, 1039388677, 5491155875, 92211937094, 6954047816459, 7225392149719, 2699717387790739, 2785123121790325, 573031978700759, 84009502802237, 45510401082365870, 46518885869845330 ]
[ "nonn", "frac" ]
A196206
[ 5, 11, 14, 35, 70, 136, 305, 611, 1321, 2832, 6041, 12936, 27706, 59515, 128053, 275195, 591576, 1272021, 2736374, 5887462, 12665855, 27247361, 58620223, 126125420, 271372681, 583876552, 1256241214, 2702904009, 5815589949 ]
[ "nonn" ]
A073096
[ 6, 6, 18, 258, 65538, 4294967298, 18446744073709552000, 3.402823669209385e+38, 1.157920892373162e+77 ]
[ "nonn" ]
A022467
[ 0, 0, 1, 1, 2, 2, 3, 2, 3, 4, 8, 10, 14, 18, 24, 28, 41, 56, 69, 91, 123, 164, 221, 286, 366, 494, 636, 832, 1095, 1423, 1847, 2440, 3154, 4166, 5366, 7025, 9119, 11925, 15495, 20259, 26320, 34409, 44827, 58432, 76193, 99353, 129347, 168789, 219947, 286629 ]
[ "nonn" ]
A077613
[ 0, 1, 4, 24, 144, 1080, 8640, 80640, 806400, 9072000, 108864000, 1437004800, 20118067200, 305124019200, 4881984307200, 83691159552000, 1506440871936000, 28810681675776000, 576213633515520000, 12164510040883200000, 267619220899430400000, 6.182004002776842e+21 ]
[ "nonn" ]
A312912
[ 1, 4, 9, 13, 17, 23, 30, 34, 38, 43, 47, 51, 57, 64, 68, 72, 77, 79, 83, 91, 98, 102, 106, 111, 111, 115, 125, 132, 136, 140, 145, 143, 147, 159, 166, 170, 174, 179, 175, 179, 193, 200, 204, 208, 213, 207, 211, 227, 234, 238 ]
[ "nonn" ]
A120603
[ 1, 3, 21, 399, 9135, 233709, 6400947, 183585897, 5443737390, 165536020650, 5133935821014, 161768728483362, 5164132704296202, 166660621950110530, 5428573285691233000, 178234125351736440000, 5.892439158797172e+21 ]
[ "nonn" ]
A346321
[ 1, 21, 322, 4284, 52941, 627627, 7264499, 82948008, 940359420, 10628025408, 120071145376, 1358324810752, 15403850755456, 175232115148032, 2000450203866368, 22922052379355136, 263639657993643000, 3043516686354637000, 35260990780587196000, 409914386080322000000 ]
[ "nonn", "easy" ]
A132266
[ 4, 7, 7, 3, 5, 2, 1, 7, 0, 2, 5, 4, 8, 9, 3, 8, 0, 1, 9, 8, 3, 3, 4, 2, 8, 6, 3, 6, 5, 8, 2, 0, 2, 3, 0, 3, 5, 0, 8, 8, 5, 9, 6, 4, 2, 1, 4, 4, 4, 5, 8, 5, 0, 0, 7, 6, 0, 3, 4, 5, 6, 1, 3, 8, 9, 1, 4, 1, 2, 8, 8, 8, 5, 7, 9, 1, 6, 3, 5, 2, 4, 7, 7, 2, 8, 0, 9, 4, 1, 6, 5, 3, 5, 3, 6, 1, 1, 3, 5, 0, 0, 3, 7, 2, 5 ]
[ "nonn", "cons" ]
A295756
[ 1, 2, 3, 4, 14, 27, 43, 71, 123, 205, 332, 541, 885, 1439, 2330, 3775, 6119, 9909, 16036, 25953, 42005, 67975, 109990, 177976, 287985, 465980, 753977, 1219970, 1973968, 3193959, 5167941, 8361915, 13529879, 21891817, 35421712, 57313546, 92735283, 150048854 ]
[ "nonn", "easy" ]
A089019
[ 2, 13, 14, 26, 38, 49, 62, 67, 79, 74, 86, 103, 109, 133, 122, 158, 146, 181, 194, 194, 182, 182, 193, 199, 259, 278, 247, 266, 278, 254, 266, 301, 301, 314, 362, 338, 379, 373, 367, 427, 458, 403, 434, 458, 422, 446, 433, 434, 518, 511, 494, 482, 487, 523 ]
[ "nonn" ]
A010639
[ 4, 1, 0, 1, 5, 6, 5, 9, 2, 9, 7, 0, 2, 3, 4, 7, 5, 2, 1, 8, 4, 7, 1, 8, 4, 9, 8, 2, 1, 4, 1, 8, 7, 4, 8, 0, 7, 6, 5, 0, 1, 0, 5, 8, 4, 6, 7, 8, 6, 1, 6, 8, 8, 1, 1, 1, 7, 8, 9, 8, 1, 1, 9, 1, 3, 7, 1, 3, 7, 0, 7, 2, 5, 9, 6, 5, 3, 6, 0, 8, 5, 6, 9, 1, 2, 0, 6, 6, 5, 8, 4, 2, 5, 6, 5, 7, 2, 6, 2 ]
[ "nonn", "cons" ]
A281635
[ 1, 2, 6, 1, 24, 15, 72, 247, 112, 879, 352, 3871, 1152, 15743, 5888, 62719, 23552, 260095, 119808, 818175, 194560, 3663871, 1122304, 11173887, 33300480, 2580479, 130924544, 11911167, 530350080, 33816575, 2147123200, 136282111, 8586592256, 688324607 ]
[ "nonn", "easy" ]
A304069
[ 0, 1, 4, 20, 120, 996, 12208, 241520, 8171936, 491317640, 53489987584, 10642774095040, 3891541970165760, 2627082058057474000, 3.2886291818345445e+21, 7.666328470407978e+24, 3.3415367571344087e+28, 2.7336100780759753e+32 ]
[ "nonn" ]
A056587
[ 0, 1, 1, 1024, 59049, 9765625, 1073741824, 137858491849, 16679880978201, 2064377754059776, 253295162119140640, 31181719929966182000, 3.833759992447475e+21, 4.715841611644225e+23 ]
[ "nonn", "easy" ]
A322523
[ 0, 0, 1, 0, 1, 1, 0, 2, 2, 0, 2, 1, 0, 1, 2, 0, 3, 2, 0, 3, 1, 0, 1, 3, 0, 3, 3, 0, 3, 1, 0, 1, 3, 0, 2, 2, 0, 2, 1, 0, 1, 2, 0, 4, 3, 0, 4, 1, 0, 1, 4, 0, 4, 3, 0, 4, 1, 0, 1, 4, 0, 2, 2, 0, 2, 1, 0, 1, 2, 0, 4, 4, 0, 4, 1, 0, 1, 4, 0, 4, 4, 0, 4, 1, 0, 1, 4, 0, 2, 2, 0, 2, 1, 0, 1, 2, 0, 3, 4, 0 ]
[ "nonn", "easy" ]
A191870
[ 1, 4, 46, 960, 29218, 1171380, 58329766, 3472396928, 240584307106, 19018858710852, 1689457066042590 ]
[ "nonn" ]
A319857
[ 0, 3, 14, 58, 250, 994, 4066, 16174, 65326, 261934, 1048366, 4191994, 16774906, 67078834, 268405426, 1073711794, 4294937266, 17179358674, 68718966226, 274868207254, 1099501928086, 4398036811414, 17592176344726, 70368521084794, 281474753617786, 1125899683749754, 4503599404277626 ]
[ "nonn" ]
A307180
[ 1, 0, 1, 2, 6, 15, 68, 310, 2096, 16554, 152497, 1574652, 17947667, 223013311 ]
[ "nonn", "hard", "more" ]
A066014
[ 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 8, 4, 8, 8, 8, 8, 8, 8, 8, 8, 8, 12, 12 ]
[ "nonn", "more" ]
A045915
[ 4, 24, 144, 908, 6117, 44159, 332775, 2592589, 20758019, 169922924, 1416703346, 11992874160, 10283824252 ]
[ "dead" ]
A319409
[ 0, 1, 2, 2, 4, 5, 5, 4, 8, 9, 10, 10, 10, 12, 11, 8, 16, 17, 18, 18, 20, 21, 21, 20, 20, 23, 25, 24, 22, 26, 23, 16, 32, 33, 34, 34, 36, 37, 37, 36, 40, 41, 42, 42, 42, 44, 43, 40, 40, 45, 48, 46, 50, 52, 51, 48, 44, 51, 55, 52, 46, 54, 47, 32, 64, 65, 66, 66, 68, 69, 69, 68, 72, 73, 74, 74, 74, 76, 75, 72, 80, 81, 82, 82, 84, 85, 85, 84, 84, 87, 89, 88, 86, 90, 87, 80, 80 ]
[ "nonn", "base" ]
A167793
[ 2, 3, 6, 7, 9, 14, 17, 18, 23, 27, 34, 37, 43, 46, 47, 49, 53, 54, 73, 74, 81, 83, 86, 94, 97, 98, 103, 106, 107, 113, 137, 146, 157, 162, 166, 167, 173, 193, 194, 197, 206, 214, 223, 226, 227, 233, 243, 257, 263, 274, 277, 283, 289, 293, 307, 314, 317, 334, 343, 346 ]
[ "nonn" ]
A118897
[ 1, 2, 4, 8, 15, 1, 29, 2, 1, 56, 5, 2, 1, 108, 12, 5, 2, 1, 208, 28, 12, 5, 2, 1, 401, 62, 29, 12, 5, 2, 1, 773, 136, 65, 30, 12, 5, 2, 1, 1490, 294, 145, 68, 31, 12, 5, 2, 1, 2872, 628, 319, 154, 71, 32, 12, 5, 2, 1, 5536, 1328, 694, 344, 163, 74, 33, 12, 5, 2, 1, 10671, 2787 ]
[ "nonn", "tabf" ]
A291286
[ 1, 2, 4, 16, 88, 632, 5552, 57824, 695776, 9500128, 145097152, 2451080192, 45373649024, 913400022656, 19865889564928, 464227147597312, 11599471170191872, 308605525316616700, 8709955613991290000, 259922447412719220000, 8.177253768239406e+21 ]
[ "nonn" ]
A261625
[ 0, 1, 1, 1, 1, 2, 2, 1, 2, 3, 2, 2, 4, 1, 4, 3, 1, 5, 2, 2, 5, 4, 3, 3, 4, 3, 5, 6, 3, 5, 3, 2, 6, 5, 5, 5, 3, 2, 5, 6, 3, 4, 6, 2, 7, 9, 2, 5, 5, 3, 9, 7, 1, 5, 7, 5, 5, 8, 2, 8, 7, 3, 8, 7, 5, 7, 6, 3, 6, 9, 5, 9, 7, 4, 6, 8, 3, 8, 9, 3 ]
[ "nonn" ]
A278359
[ 10, 96, 701, 4872, 34038, 229887, 1429751, 8023290, 40628537, 187182375, 792488635, 3112464438, 11433026309, 39553920537, 129642951590, 404588606826, 1207383521600, 3458209486713, 9537445039588, 25399009679008, 65477548087465 ]
[ "nonn" ]
A171820
[ 2, 4, 6, 8, 11, 12, 14, 18, 19, 21, 22, 25, 27, 29, 31, 34, 36, 37, 38, 42, 44, 46, 47, 48, 50, 53, 58, 59, 61, 63, 65, 67, 68, 70, 73, 74, 75, 78, 80, 82, 84, 85, 88, 90, 93, 95, 99, 100, 101, 105, 106, 110, 111, 112, 114, 115, 117, 121, 122, 125, 127, 129, 130, 131, 133 ]
[ "nonn", "less" ]
A067363
[ 2, 3, 7, 5, 17, 11, 17, 23, 23, 103, 59, 17, 29, 79, 59, 23, 347, 307, 53, 227, 131, 83, 67, 223, 29, 59, 197, 83, 181, 293, 71, 71, 139, 43, 67, 103, 431, 743, 1279, 197, 419, 127, 271, 73, 229, 503, 211, 181, 1597, 151, 151, 197, 1013, 179, 587, 71, 137, 547 ]
[ "nonn" ]
A329092
[ 6, 6, 0, 4, 0, 3, 6, 4, 1, 3, 2, 1, 1, 1, 5, 1, 1, 4, 1, 9, 3, 0, 4, 3, 8, 2, 4, 9, 2, 6, 4, 4, 3, 6, 0, 9, 6, 1, 1, 6, 9, 5, 0, 6, 5, 7, 9, 4, 6, 5, 0, 4, 4, 8, 9, 0, 2, 5, 8, 5, 8, 8, 0, 4, 5, 3, 5, 8, 0, 8, 3, 1, 1, 4, 9, 4, 5, 5, 2, 0, 6, 2, 5, 2, 8, 4, 5, 3, 1, 7, 8 ]
[ "nonn", "cons" ]
A057061
[ 2, 1, 2, 4, 5, 3, 5, 3, 6, 8, 6, 9, 5, 3, 9, 3, 8, 6, 12, 8, 6, 13, 9, 3, 9, 5, 3, 14, 12, 8, 10, 6, 17, 15, 5, 3, 15, 9, 5, 18, 12, 10, 20, 18, 14, 12, 21, 9, 5, 3, 21, 15, 13, 3, 20, 14, 8, 6, 24, 20, 18, 8, 19, 15, 13, 9, 21, 15, 5, 3, 26, 20, 12, 6 ]
[ "nonn" ]
A216268
[ 0, 35, 120, 2024, 2600, 43680, 435730689800 ]
[ "nonn", "more", "fini" ]
A284758
[ 1, 7, 15, 24, 40, 60, 144, 120, 180, 336, 420, 360, 900, 960, 720, 840, 1260, 1440, 2340, 1680, 2880, 3600, 8190, 2520, 9072, 9900, 6300, 6720, 20592, 5040, 10920, 7560, 31320, 98040, 25920, 10080, 21420, 177156, 74256, 15120, 28560, 20160 ]
[ "nonn", "base" ]
A210576
[ 1, 2, 3, 4, 5, 7, 8, 9, 11, 13, 14, 17, 19, 23, 29 ]
[ "nonn", "fini", "full" ]
A006387
[ 0, 0, 1, 6, 40, 320, 2946, 29364, 309558, 3365108, 37246245, 416751008, 4696232371, 53186743416, 604690121555, 6896534910612, 78867385697513, 904046279771682, 10384916465797240, 119522063788613000, 1378014272286250000 ]
[ "nonn" ]
A297718
[ 21, 865, 14462, 336653, 8103241, 183324631, 4238895126, 98184350818, 2265008802005, 52325664406022, 1208931244861130, 27923747107250180, 645039373054891800, 14900511436264593000, 344198253865046300000 ]
[ "nonn" ]
A158179
[ 1, 4, 9, 25, 49, 121, 225, 484, 900, 1764, 3136, 5929, 10201, 18225, 30976, 53361, 88209, 148225, 240100, 393129, 627264, 1004004, 1575024, 2480617, 3833726, 5933957, 9059666, 13822309, 20836093, 31397249, 46795621, 69667778, 102800226, 151372383, 221179471 ]
[ "nonn" ]
A362599
[ 1, 2, 3, 1, 2, 5, 7, 3, 1, 4, 2, 10, 5, 12, 16, 7, 8, 3, 1, 9, 4, 11, 6, 2, 20, 10, 5, 24, 13, 12, 28, 16, 7, 33, 38, 8, 3, 43, 26, 1, 19, 9, 4, 23, 44, 11, 15, 6, 37, 2, 25, 20, 22, 10, 5, 36, 24, 46, 13, 45, 12, 53, 28, 31, 16, 32, 58, 7, 33, 42, 38, 64, 18 ]
[ "nonn" ]
A012916
[ 1, -4, 16, -184, 1152, -99744, -5133696, -906195840, -171321409536, -44275226644992, -14354506519279616, -5752303885373680000, -2.787951257303019e+21, -1.6078244163389742e+24 ]
[ "sign" ]
A302719
[ 0, 0, 0, 2, 26, 580, 23116, 1703182, 237842582, 64143512608, 33852316389688, 35268292090882870, 72930742736413800000, 3.0032334284613336e+23, 2.467442527810799e+27, 4.049066136371716e+31, 1.3279310370765942e+36 ]
[ "nonn" ]