id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A365484
[ 1, 2, 2, 3, 1, 1, 4, 5, 2, 2, 5, 2, 8, 1, 1, 6, 8, 1, 4, 2, 2, 7, 3, 4, 2, 2, 1, 1, 8, 11, 5, 2, 1, 1, 2, 2, 9, 4, 17, 8, 1, 2, 2, 1, 1, 10, 14, 2, 26, 4, 2, 1, 1, 2, 2, 11, 5, 7, 1, 13, 2, 1, 2, 2, 1, 1, 12, 17, 8, 11, 2, 20, 1, 2, 1, 1, 2, 2, 13, 6, 26, 4, 17, 1, 10, 2, 1, 2, 2, 1, 1 ]
[ "nonn", "easy", "tabl" ]
A067432
[ 0, 0, 0, 0, 1, 0, 1, 0, 2, 0, 1, 0, 1, 0, 2, 1, 1, 0, 0, 3, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 2, 0, 2, 0, 3, 0, 0, 0, 0, 0, 1, 0, 0, 4, 0, 3, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 3, 0, 0, 0, 0, 2, 0, 4, 0, 1, 1, 1, 0, 0, 0 ]
[ "nonn" ]
A156826
[ 1, 2, -1, 3, 1, -1, 4, -1, 0, -1, 5, 2, 1, 0, -1, 6, -2, -1, 0, 0, -1, 7, 3, -1, 1, 0, 0, -1, 8, -3, 2, -1, 0, 0, 0, -1, 9, 4, -2, -1, 1, 0, 0, 0, -1, 10, -4, -2, -1, -1, 0, 0, 0, 0, -1, 11, 5, 3, 2, -1, 1, 0, 0, 0, 0, -1, 12, -5, -3, -2, -1, -1, 0, 0, 0, 0, 0, -1, 13, 6, -3, -2, -1, -1, 1, 0, 0 ]
[ "sign", "tabl" ]
A025342
[ 161, 189, 194, 209, 234, 254, 261, 270, 281, 285, 290, 293, 299, 321, 362, 365, 369, 371, 378, 386, 390, 395, 401, 405, 406, 419, 429, 449, 450, 465, 469, 477, 482, 485, 489, 491, 501, 510, 518, 534, 539, 557, 563, 570, 573, 574, 586, 589, 601, 609, 633, 644, 645, 649 ]
[ "nonn" ]
A004607
[ 1026, 10098, 10260, 12420, 41800, 45696, 100980, 241824, 448800, 512946, 685440, 830568, 4938136, 6732000, 9424800, 12647808, 13959680, 14958944, 17878998, 25581600, 28158165, 32440716, 36072320, 55204500, 74062944 ]
[ "nonn", "nice", "more" ]
A039195
[ 0, 1, 2, 3, 4, 7, 8, 9, 10, 11, 12, 13, 14, 15, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 30, 31, 32, 33, 34, 35, 36, 37, 40, 41, 42, 43, 44, 45, 46, 47, 48, 51, 52, 53, 54, 61, 71, 77, 78, 79, 80, 81, 84, 85, 86, 87, 88, 89, 90, 91, 92, 95, 96, 97, 98, 99, 100, 101, 102 ]
[ "nonn", "base", "easy" ]
A155320
[ 1, 4, 13, 28, 129, 586, 2176, 14358, 112046, 791851, 8217946, 101868365, 1252862099, 20806137393 ]
[ "nonn" ]
A150891
[ 1, 2, 8, 34, 152, 704, 3326, 15930, 77020, 374958, 1834706, 9012254, 44402004, 219279300, 1084955568, 5376364402, 26675151192, 132486601696, 658580866304, 3276110262256, 16306917067606, 81210057412848, 404613214635276, 2016674771117714, 10054835209468874, 50146274284967390, 250156198198364670 ]
[ "nonn", "walk" ]
A108662
[ 11, 12, 14, 16, 21, 23, 25, 27, 32, 38, 41, 45, 49, 52, 54, 56, 58, 61, 65, 72, 78, 83, 85, 87, 94, 101, 102, 104, 106, 110, 111, 113, 119, 120, 126, 131, 133, 137, 140, 146, 159, 160, 162, 164, 166, 168, 173, 179, 186, 191, 195, 197, 199, 201, 203, 205, 207, 210 ]
[ "nonn", "base" ]
A317640
[ 0, 8, 1, 20, 2, 36, 3, 48, 4, 64, 5, 76, 6, 92, 7, 104, 8, 120, 9, 132, 10, 148, 11, 160, 12, 176, 13, 188, 14, 204, 15, 216, 16, 232, 17, 244, 18, 260, 19, 272, 20, 288, 21, 300, 22, 316, 23, 328, 24, 344, 25, 356, 26, 372, 27, 384, 28, 400, 29, 412, 30, 428, 31, 440, 32, 456, 33 ]
[ "nonn", "easy" ]
A076125
[ 2, 4, 9, 8, 8, 25, 12, 12, 29, 16, 16, 37, 20, 20, 61, 24, 24, 57, 28, 28, 65, 32, 32, 129, 36, 36, 85, 40, 40, 93, 44, 44, 129, 48, 48, 113, 52, 52, 121, 56, 56, 165, 60, 60, 141, 64, 64, 149, 68, 68, 265, 72, 72, 169, 76, 76, 177, 80, 80, 233, 84, 84, 197, 88, 88, 205 ]
[ "nonn" ]
A210560
[ 1, 3, 1, 5, 4, 2, 7, 9, 9, 3, 9, 16, 23, 16, 5, 11, 25, 46, 48, 30, 8, 13, 36, 80, 110, 101, 54, 13, 15, 49, 127, 215, 257, 203, 97, 21, 17, 64, 189, 378, 552, 570, 401, 172, 34, 19, 81, 268, 616, 1057, 1337, 1228, 776, 303, 55, 21, 100, 366, 948, 1862, 2772 ]
[ "nonn", "tabl" ]
A118698
[ 46, 65, 95, 155, 158, 185, 201, 202, 203, 205, 206, 253, 254, 278, 301, 302, 303, 305, 323, 326, 361, 382, 403, 417, 445, 451, 453, 454, 471, 473, 478, 493, 497, 501, 502, 514, 519, 526, 527, 529, 537, 538, 542, 543, 545, 554, 559, 562, 565, 566, 581, 583 ]
[ "base", "nonn" ]
A025523
[ 1, 2, 3, 5, 6, 9, 10, 14, 16, 19, 20, 28, 29, 32, 35, 43, 44, 52, 53, 61, 64, 67, 68, 88, 90, 93, 97, 105, 106, 119, 120, 136, 139, 142, 145, 171, 172, 175, 178, 198, 199, 212, 213, 221, 229, 232, 233, 281, 283, 291, 294, 302, 303, 323, 326, 346, 349, 352, 353, 397, 398, 401 ]
[ "nonn" ]
A344698
[ 1, 1, 1, 7, 1, 7, 1, 5, 91, 7, 1, 5, 1, 7, 91, 31, 1, 65, 1, 5, 91, 7, 1, 31, 2821, 7, 25, 5, 1, 65, 1, 21, 91, 7, 2821, 403, 1, 7, 91, 31, 1, 65, 1, 5, 25, 7, 1, 21, 7657, 403, 91, 5, 1, 155, 2821, 31, 91, 7, 1, 403, 1, 7, 25, 127, 2821, 65, 1, 5, 91, 403, 1, 91, 1, 7, 155, 5, 7657, 65, 1, 21, 3751, 7, 1, 403, 2821 ]
[ "nonn" ]
A039229
[ 0, 2, 3, 4, 5, 6, 7, 8, 9, 10, 23, 24, 26, 27, 28, 29, 30, 31, 32, 33, 34, 36, 38, 39, 40, 41, 42, 43, 44, 45, 46, 48, 50, 51, 52, 53, 54, 55, 56, 57, 58, 60, 62, 63, 64, 65, 66, 67, 68, 69, 70, 72, 74, 75, 76, 77, 78, 79, 80, 81, 82, 84, 86, 87, 88, 89, 90, 91, 92, 93 ]
[ "nonn", "base", "easy" ]
A092295
[ 1, 1, 1, 2, 4, 5, 7, 10, 15, 20, 27, 36, 50, 65, 85, 111, 146, 186, 239, 304, 388, 488, 614, 767, 961, 1191, 1475, 1819, 2243, 2746, 3361, 4096, 4988, 6047, 7322, 8836, 10655, 12801, 15360, 18384, 21978, 26199, 31196, 37062, 43979, 52072, 61579, 72682 ]
[ "easy", "nonn" ]
A124763
[ 0, 0, 0, 1, 0, 1, 0, 2, 0, 1, 1, 2, 0, 1, 1, 3, 0, 1, 1, 2, 0, 2, 1, 3, 0, 1, 1, 2, 1, 2, 2, 4, 0, 1, 1, 2, 1, 2, 1, 3, 0, 1, 2, 3, 1, 2, 2, 4, 0, 1, 1, 2, 0, 2, 1, 3, 1, 2, 2, 3, 2, 3, 3, 5, 0, 1, 1, 2, 1, 2, 1, 3, 0, 2, 2, 3, 1, 2, 2, 4, 0, 1, 1, 2, 1, 3, 2, 4, 1, 2, 2, 3, 2, 3, 3, 5, 0, 1, 1, 2, 1, 2, 1, 3, 0 ]
[ "easy", "nonn", "tabf" ]
A259163
[ 18, 189, 37727235, 393298308, 78448579122960, 817809556618215, 163122994382238900000, 1.7005221152683718e+21, 3.391917558445626e+26, 3.5360010666478544e+27, 7.053024478162984e+32, 7.352626249945314e+33 ]
[ "nonn", "easy" ]
A220865
[ 6, 472, 14508, 616945, 23310528, 919890493, 35726458296, 1395733639864, 54409227545670, 2122708670082349, 82790398883086460, 3229363021350300700, 125961061338940150000, 4.913174522492216e+21, 1.916397946815076e+23, 7.47498074574103e+24, 2.915641591406287e+26, 1.1372562031468273e+28, 4.435907158633199e+29, 1.7302409958226333e+31 ]
[ "nonn" ]
A278162
[ 1, 2, 2, 6, 2, 6, 2, 12, 6, 6, 2, 6, 6, 30, 2, 6, 2, 30, 12, 6, 2, 30, 6, 30, 2, 6, 2, 30, 6, 6, 6, 30, 12, 30, 6, 6, 2, 30, 12, 6, 2, 12, 6, 60, 6, 6, 6, 210, 6, 6, 6, 6, 6, 30, 2, 30, 2, 120, 6, 6, 6, 6, 6, 30, 6, 6, 2, 30, 24, 6, 12, 6, 30, 210, 2, 30, 6, 30, 6, 6, 6, 30, 12, 210, 2, 6, 6, 30, 6, 30, 2, 30, 6, 60, 2, 6, 6, 30, 30, 60, 6, 6, 6, 30, 6, 30, 6 ]
[ "nonn" ]
A126945
[ 1, 5, 15, 47, 151, 479, 1519, 4827, 15333, 48693, 154651, 491189, 1560039, 4954755, 15736581, 49980243, 158739915, 504166505, 1601260009, 5085687979, 16152418715, 51300951395, 162934583329, 517489007515, 1643572944909, 5220076149055, 16579242853235 ]
[ "nonn" ]
A312549
[ 1, 4, 8, 14, 18, 24, 28, 32, 36, 40, 46, 50, 56, 60, 64, 68, 72, 78, 82, 88, 92, 96, 100, 104, 110, 114, 120, 124, 128, 132, 136, 142, 146, 152, 156, 160, 164, 168, 174, 178, 184, 188, 192, 196, 200, 206, 210, 216, 220, 224 ]
[ "nonn" ]
A324465
[ 0, 0, 1, 3, 2, 2, 3, 5, 2, 3, 4, 6, 5, 4, 5, 7, 2, 3, 4, 6, 5, 5, 6, 8, 5, 6, 7, 9, 8, 6, 7, 9, 2, 3, 4, 6, 5, 5, 6, 8, 5, 6, 7, 9, 8, 7, 8, 10, 5, 6, 7, 9, 8, 8, 9, 11, 8, 9, 10, 12, 11, 8, 9, 11, 2, 3, 4, 6, 5, 5, 6, 8, 5, 6, 7, 9, 8, 7, 8, 10, 5, 6, 7, 9 ]
[ "nonn" ]
A336507
[ 45, 135, 225, 405, 675, 765, 855, 1035, 1125, 1215, 1275, 1305, 1395, 1665, 1845, 1935, 2025, 2115, 2295, 2565, 3105, 3375, 3645, 3825, 3915, 4185, 4275, 4995, 5175, 5535, 5625, 5805, 6075, 6345, 6375, 6525, 6885, 6975, 7155, 7695, 7965, 8235, 8325, 9045, 9225 ]
[ "nonn" ]
A094548
[ 1, 3, 5, 9, 7, 35, 11, 27, 25, 21, 13, 175, 17, 15, 22, 81, 19, 175, 23, 63, 22, 35, 29, 875, 49, 33, 125, 45, 31, 1001, 37, 243, 34, 35, 38, 875, 41, 39, 46, 189, 43, 715, 47, 45, 52, 51, 53, 4375, 121, 63, 55, 63, 59, 875, 57, 135, 58, 65, 61, 7007, 67, 65, 68 ]
[ "nonn" ]
A012034
[ 1, 1, 1, -1, -7, 1, 121, 111, -4271, -9407, 262801, 957791, -25257079, -131065791, 3510517193, 23876150351, -667413187039, -5645293077119, 166471455235489, 1689130316350143, -52750545434135400 ]
[ "sign" ]
A101968
[ 0, 3, 33, 35, 41, 51, 162, 207, 215, 1416, 14645, 22793, 25647, 32514, 51420 ]
[ "nonn", "hard", "more" ]
A139098
[ 0, 8, 32, 72, 128, 200, 288, 392, 512, 648, 800, 968, 1152, 1352, 1568, 1800, 2048, 2312, 2592, 2888, 3200, 3528, 3872, 4232, 4608, 5000, 5408, 5832, 6272, 6728, 7200, 7688, 8192, 8712, 9248, 9800, 10368, 10952, 11552, 12168, 12800, 13448, 14112, 14792, 15488, 16200 ]
[ "nonn", "easy" ]
A282771
[ 0, 64, 432, 2916, 19683, 50000, 337500, 2278125, 13176688, 39062500, 88942644, 263671875, 600362847, 10294287500, 30517578125, 69486440625, 2712892291396, 4564986729776, 8042412109375, 18312022966923, 30813660425988, 207992207875419, 2119447102653125, 3566395882637500 ]
[ "nonn" ]
A386057
[ 3, 43, 433, 443, 463, 643, 3343, 3433, 3463, 3643, 4003, 4363, 4463, 4603, 4643, 4663, 6043, 6343, 30403, 30643, 33343, 33403, 34033, 34303, 34403, 34603, 36343, 36433, 36643, 40063, 40343, 40433, 43003, 43063, 43403, 43633, 44633, 46633, 46643, 46663, 60343 ]
[ "nonn", "base", "easy" ]
A193127
[ 2, 36, 384, 3528, 30250, 248832, 1989806, 15586704, 120187008, 915304500, 6900949462, 51599794176, 383142771674, 2828107288188, 20768716848000, 151840963183392, 1105779284582146, 8024954790380544, 58059628319357320, 418891171182561000, 3014678940049375700, 21646865272061272000 ]
[ "nonn", "easy" ]
A265389
[ 6, 16, 27, 36, 46, 57, 66, 75, 87, 96, 106, 117, 126, 136, 147, 156, 165, 177, 186, 196, 207, 216, 227, 237, 246, 255, 267, 276, 286, 297, 306, 316, 327, 336, 345, 357, 366, 376, 387, 396, 406, 417, 426, 435, 447, 456, 466, 477, 486, 497, 507, 516, 525, 537 ]
[ "nonn" ]
A349719
[ 1, 1, 0, 1, -4, 26, -212, 2108, -24720, 334072, -5112544, 87396728, -1650607040, 34132685120, -767025716736, 18612106195456, -485013257865472, 13509071081429888, -400505695457942500, 12592502771190980000, -418524228123134070000 ]
[ "sign" ]
A342838
[ 21, 31, 32, 39, 42, 62, 67, 75, 82, 91, 93, 97, 104, 109, 121, 127, 135, 137, 139, 140, 145, 146 ]
[ "nonn", "base", "more" ]
A137277
[ 1, 0, 1, 2, 0, 1, 0, 1, 0, 1, -6, 0, 0, 0, 1, 0, -6, 0, -1, 0, 1, 20, 0, -5, 0, -2, 0, 1, 0, 25, 0, -3, 0, -3, 0, 1, -70, 0, 28, 0, 0, 0, -4, 0, 1, 0, -98, 0, 28, 0, 4, 0, -5, 0, 1, 252, 0, -126, 0, 24, 0, 9, 0, -6, 0, 1, 0, 378, 0, -150, 0, 15, 0, 15, 0, -7, 0, 1, -924, 0, 528, 0, -165, 0, 0, 0, 22, 0, -8, 0, 1, 0, -1452 ]
[ "sign", "easy", "tabl" ]
A357733
[ 1, 2, 286, 299, 56653, 56834, 11006686, 11009207, 2135467321, 2135502434, 414272813758, 414273302819, 80366834417221, 80366841228962, 15590752217183806, 15590752312059120, 3024525571838019000, 3024525573159462000, 586742370303288400000, 586742370321693740000, 1.1382499531492259e+23 ]
[ "nonn", "easy" ]
A149732
[ 1, 1, 5, 17, 75, 301, 1313, 5779, 26021, 118653, 545231, 2525549, 11788379, 55289461, 260927137, 1235788601, 5876795881, 28036136445, 134127337005, 643415715839, 3093416512511, 14904311410713, 71946402682733, 347889753790277, 1684869526253279, 8171554691807099, 39684352873993870, 192957177241489100 ]
[ "nonn", "walk" ]
A196911
[ 13, 487, 10970, 280860, 7352954, 200038888, 5388703976, 145478400315, 3933296800409, 106294282176389, 2872553552092524, 77641656013643280, 2098667174973445600, 56728541446185440000, 1.5334388287904673e+21 ]
[ "nonn" ]
A344867
[ 1, 3, 4, 8, 7, 13, 9, 18, 15, 22, 14, 35, 16, 28, 29, 40, 21, 49, 23, 58, 38, 43, 27, 80, 40, 50, 50, 75, 34, 97, 36, 85, 58, 64, 64, 131, 43, 71, 67, 132, 47, 126, 49, 114, 108, 83, 53, 178, 70, 127, 87, 133, 60, 164, 99, 171, 95, 104, 66, 258, 68, 110, 142, 178, 114, 191, 75 ]
[ "nonn" ]
A168894
[ 1, 25, 600, 14400, 345600, 8294400, 199065600, 4777574400, 114661785600, 2751882854400, 66045188505600, 1585084524134400, 38042028579225600, 913008685901414400, 21912208461633946000, 525893003079214700000 ]
[ "nonn" ]
A040263
[ 16, 1, 2, 1, 2, 1, 32, 1, 2, 1, 2, 1, 32, 1, 2, 1, 2, 1, 32, 1, 2, 1, 2, 1, 32, 1, 2, 1, 2, 1, 32, 1, 2, 1, 2, 1, 32, 1, 2, 1, 2, 1, 32, 1, 2, 1, 2, 1, 32, 1, 2, 1, 2, 1, 32, 1, 2, 1, 2, 1, 32, 1, 2, 1, 2, 1, 32, 1, 2, 1, 2, 1, 32, 1, 2, 1, 2, 1, 32, 1, 2, 1, 2, 1, 32, 1, 2 ]
[ "nonn", "cofr", "easy" ]
A205416
[ 256, 62716, 74565586, 399249906572, 9958775794360374 ]
[ "nonn" ]
A171931
[ 0, 1, 2, 2, 2, 2, 3, 4, 2, 3, 4, 2, 4, 5, 1, 2, 3, 3, 3, 6, 2, 3, 9, 48, 2, 2, 2, 5, 2, 32, 7, 4, 2, 8, 6, 1, 2, 6, 1, 11, 2, 11, 2, 4, 4, 1, 44, 2, 3, 9, 3, 5, 8, 1, 1, 2, 3, 9, 4, 4, 7, 4, 2, 5, 5, 71, 4, 12, 12, 5, 2, 5, 1, 2, 3, 8, 2, 7, 8, 2, 2, 19, 6, 2, 3, 10, 5, 2, 9, 3, 6, 2, 2, 30, 17, 4, 17, 6, 81 ]
[ "nonn" ]
A297525
[ 1, 276, 8931, 80436, 956810, 22251457, 424461759, 6257746155, 99189736172, 1760551954224, 30190892195574, 493945062481322, 8201194302960825, 138921386338813060, 2337797782100666000, 39010588017713110000 ]
[ "nonn" ]
A374142
[ 8, 617, 8726, 255575, 1339801, 2419165, 9402323, 25764500, 35486953, 144568133, 385495261, 735503569, 638279039, 1183071664, 1571634527, 4449717748, 3584182298, 3871587494, 5693954599, 27084640649, 24205505111, 32489035067, 31973745058, 38935021406, 47570693867, 44749048300, 53075499329 ]
[ "nonn" ]
A159143
[ 1, 37, 892, 18101, 339221, 6136346, 109762005, 1969306328, 35761194738, 661255164270 ]
[ "nonn" ]
A087912
[ 1, 3, 14, 86, 648, 5752, 58576, 671568, 8546432, 119401856, 1815177984, 29808908032, 525586164736, 9898343691264, 198227905206272, 4204989697906688, 94163381359509500, 2219240984918720500, 54898699229094410000, 1.4220151908210167e+21, 3.8484192401958596e+22 ]
[ "nonn" ]
A191683
[ 21, 33, 57, 69, 93, 105, 129, 177, 195, 213, 217, 237, 249, 265, 309, 393, 417, 445, 465, 483, 489, 565, 573, 597, 633, 645, 669, 753, 813, 865, 915, 933, 973, 987, 993, 1057, 1077, 1137, 1149, 1185, 1257, 1285, 1329, 1365, 1389, 1393, 1417, 1437, 1465, 1477, 1497, 1545, 1569, 1689, 1743, 1765, 1857, 1893, 1897, 1945, 1977 ]
[ "nonn" ]
A342180
[ 2, 3, 5, 13, 31, 313, 2659, 96979, 97340263, 96133996771, 288596670839, 35613385860024920000, 1.2108551253013774e+21, 4.191695536330735e+22, 1.559140836347245e+34, 1.1697454124714642e+39, 3.9964150430881505e+54 ]
[ "nonn" ]
A251724
[ 2, 4, 6, 21, 65, 85, 95, 115, 217, 259, 287, 301, 329, 649, 671, 737, 781, 803, 869, 913, 979, 1067, 1111, 1133, 1177, 1199, 1243, 1703, 1781, 1807, 1937, 1963, 2041, 2119, 2171, 3043, 3077, 3247, 3281, 3349, 3383, 3587, 3791, 3859, 3893, 3961, 4063, 4097, 4267, 4369, 4471, 4573, 4607, 4709, 4777, 4811, 5833, 5909, 5947, 6023, 6289, 6403, 6593, 6631, 6707, 6821, 8579 ]
[ "nonn" ]
A106198
[ 1, 1, 1, 2, 2, 1, 3, 5, 3, 1, 5, 13, 10, 4, 1, 8, 34, 35, 17, 5, 1, 13, 89, 125, 75, 26, 6, 1, 21, 233, 450, 338, 139, 37, 7, 1, 34, 610, 1625, 1541, 757, 233, 50, 8, 1 ]
[ "nonn", "tabl" ]
A214146
[ 4801, 524296, 367793014, 142612676441, 66761857485037, 29325981412599890, 13166014293744404000, 5.865975927675415e+21, 2.6205798577228215e+24, 1.1695994262448818e+27, 5.22187540047785e+29 ]
[ "nonn" ]
A050285
[ 7, 117, 2440, 21880, 48439, 252499, 8209165, 45681781, 45681781, 386980412, 32104158792, 1221587715177, 28642224609576, 28642224609576, 28642224609576, 28642224609576, 28642224609576 ]
[ "nonn", "base", "more" ]
A220312
[ 12, 617, 24367, 822483, 26882175, 867644508 ]
[ "nonn" ]
A227287
[ 1, 2, 2, 3, 1, 3, 4, 4, 1, 2, 2, 3, 2, 6, 7, 5, 1, 2, 2, 3, 1, 3, 4, 4, 1, 2, 2, 4, 6, 12, 11, 6, 1, 2, 2, 3, 1, 3, 4, 4, 1, 2, 2, 3, 2, 6, 7, 5, 1, 2, 2, 3, 1, 3, 4, 4, 1, 2, 3, 9, 16, 22, 16, 7, 1, 2, 2, 3, 1, 3, 4, 4, 1, 2, 2, 3, 2, 6, 7, 5, 1, 2, 2, 3, 1, 3, 4, 4, 1, 2, 2, 4, 6, 12, 11, 6, 1, 2, 2, 3, 1, 3, 4, 4, 1, 2, 2, 3, 2, 6, 7, 5, 1, 2, 2, 3, 1, 3, 4, 4, 1, 3, 9, 24, 36, 37, 22, 8, 1 ]
[ "nonn" ]
A289153
[ 2, 4, 7, 12, 22, 39, 68, 122, 217, 385, 687, 1224, 2181, 3895, 6945, 12363, 22001, 39161, 69711, 124107, 220901, 393356, 700465, 1247432, 2221413, 3955905, 7044756, 12545540, 22340117, 39782044, 70842477 ]
[ "nonn", "easy" ]
A253011
[ 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 4, 1, 0, 1, 4, 10, 19, 1, 1, 19, 10, 20, 85, 54, 1, 54, 85, 20, 35, 231, 632, 124, 124, 632, 231, 35, 56, 489, 2902, 3423, 250, 3423, 2902, 489, 56, 84, 891, 8416, 33533, 14795, 14795, 33533, 8416, 891, 84, 120, 1469, 18770, 158877, 309990 ]
[ "nonn", "tabl" ]
A034459
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 14, 50, 140, 400, 1018, 2578, 6203, 14857, 34638, 80399, 184107, 420235 ]
[ "nonn" ]
A280650
[ 0, 3, 4, 12, 16, 17, 29, 30, 31, 43, 44, 46, 48, 50, 64, 65, 68, 78, 79, 80, 102, 104, 105, 107, 108, 109, 112, 114, 116, 117, 118, 121, 127, 163, 167, 169, 170, 172, 173, 174, 175, 176, 179, 183, 186, 187, 188, 189, 191, 192, 193, 195, 196, 198, 200, 202, 203 ]
[ "nonn", "base", "easy" ]
A040077
[ 9, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3 ]
[ "nonn", "cofr", "easy" ]
A172872
[ 1, 393, 248137, 200148649, 187403959401, 189988969424241, 206239836523724200, 236069185705118900000, 2.8168970963234294e+23, 3.475320303766586e+26, 4.406419494822933e+29 ]
[ "nonn" ]
A254280
[ 3, 0, 0, 5, 0, 6, 3, 2, 3 ]
[ "nonn", "cons" ]
A204204
[ 3, 3, 7, 3, 10, 15, 3, 13, 25, 31, 3, 16, 38, 56, 63, 3, 19, 54, 94, 119, 127, 3, 22, 73, 148, 213, 246, 255, 3, 25, 95, 221, 361, 459, 501, 511, 3, 28, 120, 316, 582, 820, 960, 1012, 1023, 3, 31, 148, 436, 898, 1402, 1780, 1972, 2035, 2047, 3, 34, 179 ]
[ "nonn", "tabl" ]
A047207
[ 0, 1, 3, 4, 5, 6, 8, 9, 10, 11, 13, 14, 15, 16, 18, 19, 20, 21, 23, 24, 25, 26, 28, 29, 30, 31, 33, 34, 35, 36, 38, 39, 40, 41, 43, 44, 45, 46, 48, 49, 50, 51, 53, 54, 55, 56, 58, 59, 60, 61, 63, 64, 65, 66, 68, 69, 70, 71, 73, 74, 75, 76, 78, 79, 80, 81, 83, 84 ]
[ "nonn", "easy" ]
A101923
[ 1, 2, 1, -148, -3719, -20098, 5055961, 403644152, 7831409041, -2707151879398, -472143935754479, -22085804322342748, 9362259685093716000, 2.995219209329324e+21, 2.742693389319587e+23, -1.3296334277962935e+26, -7.069867385338342e+28 ]
[ "sign", "easy" ]
A013726
[ 21, 9261, 4084101, 1801088541, 794280046581, 350277500542221, 154472377739119460, 68122318582951680000, 3.004194249508169e+22, 1.3248496640331026e+25, 5.842587018385982e+27, 2.576580875108218e+30, 1.1362721659227242e+33 ]
[ "nonn", "easy" ]
A274681
[ 0, 5, 11, 26, 38, 63, 81, 116, 140, 185, 215, 270, 306, 371, 413, 488, 536, 621, 675, 770, 830, 935, 1001, 1116, 1188, 1313, 1391, 1526, 1610, 1755, 1845, 2000, 2096, 2261, 2363, 2538, 2646, 2831, 2945, 3140, 3260, 3465, 3591, 3806, 3938, 4163, 4301, 4536 ]
[ "nonn", "easy" ]
A313011
[ 1, 4, 9, 14, 17, 23, 30, 33, 39, 44, 45, 50, 55, 58, 66, 75, 77, 80, 87, 86, 88, 99, 101, 109, 122, 117, 121, 130, 123, 131, 144, 144, 155, 163, 158, 162, 168, 167, 174, 189, 191, 193, 206, 199, 197, 215, 210, 217, 239, 228 ]
[ "nonn" ]
A025566
[ 1, 1, 1, 3, 8, 22, 61, 171, 483, 1373, 3923, 11257, 32418, 93644, 271219, 787333, 2290200, 6673662, 19478091, 56930961, 166613280, 488176938, 1431878079, 4203938697, 12353600427, 36331804089, 106932444885, 314946659951, 928213563878 ]
[ "nonn" ]
A327292
[ 1, 2, 5, 10, 20, 36, 65, 110, 185, 300, 515, 819, 1332, 2102, 3327, 5142, 7958, 12071, 18271, 27256, 40462, 60036, 87981, 128502, 186484, 269466, 386757, 553271, 786299, 1113510, 1568109, 2199730, 3069546, 4278447, 5924730, 8188867, 11266659, 15464516, 21134748 ]
[ "nonn" ]
A140236
[ 0, 1, 20, 220, 1540, 7770, 30856, 102340, 295240, 762355, 1798940, 3939936, 8104460, 15803060, 29426320, 52636760, 90889616, 152112005, 247574180, 392991060, 609896980, 927341646, 1383960600, 2030479100, 2932714200, 4175145975, 5865135276, 8137872120 ]
[ "nonn", "easy" ]
A124334
[ 15, 17, 21, 27, 31, 45, 51, 63, 65, 73, 85, 93, 107, 119, 127, 129, 153, 165, 189, 195, 219, 231, 255, 257, 273, 297, 325, 341, 365, 381, 387, 403, 427, 443, 455, 471, 495, 511, 513, 561, 633, 645, 693, 765, 771, 819, 843, 891, 903, 951, 975 ]
[ "base", "nonn" ]
A317615
[ 1, 0, 0, 1, 0, -1, 1, 1, -1, -2591989, 1, 143285617, -576460261, -56447987, 3300470359, 3143536325702272000, -1786064113, -75094364111707440000, 2.8172618426939007e+21, 669559278432109100000, -3.280578613444121e+23, -1.0210033960347221e+31, 4.85843916586889e+24 ]
[ "sign", "frac" ]
A127890
[ 7, 79, 797, 7393, 73939, 739399, 7393933, 73939133 ]
[ "base", "nonn", "fini", "full" ]
A192597
[ 0, 4, 11, 25, 31, 80, 110, 136, 202, 260, 282, 306, 344, 440, 449, 483, 508, 516, 547, 575, 669, 724, 730, 775, 793, 802, 854, 894, 907, 914, 933, 941, 975, 1017, 1024, 1055, 1131, 1146, 1155, 1178, 1190, 1218, 1231, 1266, 1274, 1338, 1348, 1392, 1420 ]
[ "nonn" ]
A309802
[ 1, 10, 101, 1358, 20581, 390238, 8130689, 201123530, 6166988769, 201097530280, 7754625545261, 329758834067168, 14671637258193180, 711027519310719900, 38706187989054920000, 2.3384316428129274e+21, 1.459081459061283e+23, 9.976861293427674e+24 ]
[ "nonn", "easy" ]
A252854
[ 117, 279, 684, 1719, 4383, 11286, 29241, 76059, 198324, 517923, 1353843, 3541014, 9265005, 24247215, 63465660, 166131999, 434901591, 1138526262, 2980601937, 7803157779, 20428674372, 53482546539, 140018449419, 366571967094 ]
[ "nonn" ]
A104122
[ 1, 5, 6, 7, 10, 20, 100 ]
[ "easy", "fini", "full", "nonn", "word" ]
A032368
[ 2, 4, 8, 10, 12, 16, 22, 26, 68, 82, 84, 106, 110, 166, 236, 254, 286, 290, 712, 1240, 1706, 1804, 1904, 2240, 2632, 3104, 5870, 8750, 11514, 11972, 14434, 16322, 18044, 19050, 23014, 32424, 59354, 62350, 120196, 157128, 167326, 211056, 218550, 230716, 233968 ]
[ "nonn" ]
A283139
[ 1, 0, 6, 12, 26, 48, 118, 132, 98, 880, 1590, 3332, 6370, 13552, 24886, 50180, 98786, 221808, 442422, 891396, 1782242, 3670000, 6944822, 13063940, 29101282, 55208304, 100895798, 228823556, 419893730, 820973552, 2089735222, 2685666052, 738308322, 13404695920 ]
[ "nonn", "easy" ]
A307328
[ 2, 3, 7, 8, 15, 17, 25, 31, 41, 48, 69, 73, 91, 97, 106, 107, 123, 125, 138, 167, 172, 177, 181, 193, 194, 241, 242, 246, 267, 280, 286, 287, 297, 306, 312, 322, 323, 338, 340, 343, 353, 354, 382, 388, 393, 398, 403, 411, 412, 415, 416, 433, 444, 448, 460 ]
[ "nonn" ]
A219657
[ 0, 2, 5, 8, 12, 16, 21, 26, 32, 38, 44, 50, 57, 64, 71, 78, 86, 94, 102, 110, 119, 128, 137, 146, 156, 166, 177, 188, 199, 210, 222, 234, 246, 258, 271, 284, 297, 310, 324, 338, 352, 366, 381, 396, 411, 426, 441, 456, 472, 488, 504, 520, 537, 554, 571, 588, 606 ]
[ "nonn" ]
A217401
[ 8, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 800, 801, 802, 803, 804, 805, 806, 807, 808, 809, 810, 811, 812, 813, 814, 815, 816, 817, 818, 819, 820, 821, 822, 823, 824, 825, 826, 827, 828, 829, 830, 831, 832, 833, 834, 835, 836, 837, 838, 839, 840, 841, 842 ]
[ "nonn", "base", "easy" ]
A159273
[ -1, 0, -1, 1, 1, -1, 1, -1, 1, 1, -1, 3, 4, 2, -2, 7, -14, 9, 3, -15, -3, 5, 7, -5, -7, 4, 2, -2, -4, 7, -22, -21, 28, 15, -44, 14, 63, 35, -35, 520, 910, 105, 264, 990, 1155, 165, 504, 1625, 2860, 156, 495, 91, 539, 750, 198, 507, 550, 275, 143, 720, 770, 2002, 2618 ]
[ "sign" ]
A008610
[ 1, 1, 3, 5, 10, 14, 22, 30, 43, 55, 73, 91, 116, 140, 172, 204, 245, 285, 335, 385, 446, 506, 578, 650, 735, 819, 917, 1015, 1128, 1240, 1368, 1496, 1641, 1785, 1947, 2109, 2290, 2470, 2670, 2870, 3091, 3311, 3553, 3795, 4060, 4324, 4612, 4900, 5213, 5525, 5863 ]
[ "nonn", "easy" ]
A355994
[ 0, 0, 0, 3, 6, 20, 270, 1764, 12600, 169560, 1937880, 22300740, 349806600, 5556245760, 89073856872, 1678920566400, 33550354656000, 687175528253760, 15462823882213440, 370285712520237400, 9180722384533375000, 242398467521271140000 ]
[ "nonn" ]
A101172
[ 1, 2, 3, 5, 8, 15, 26, 51, 97, 191, 373, 745, 1472, 2943, 5859, 11708, 23365, 46729, 93349, 186697, 373200, 746372, 1492370, 2984739, 5968687, 11937366, 23873259, 47746421, 95489896, 190979791, 381953529, 763907057, 1527802406, 3055604437, 6111185508 ]
[ "easy", "nonn" ]
A126359
[ 3, 5, 7, 37, 43, 223, 1297, 1303, 1549, 2801, 4673, 6571, 10111, 101111 ]
[ "nonn", "base" ]
A022493
[ 1, 1, 2, 5, 15, 53, 217, 1014, 5335, 31240, 201608, 1422074, 10886503, 89903100, 796713190, 7541889195, 75955177642, 810925547354, 9148832109645, 108759758865725, 1358836180945243, 17801039909762186, 243992799075850050, 3492329741309417500, 52105418376516870000, 809029109658971700000 ]
[ "nonn", "nice" ]
A359910
[ 0, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 1, 1, 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, 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, 1, 3 ]
[ "nonn" ]
A125963
[ 1, 2, 4, 3, 5, 6, 7, 15, 8, 9, 10, 21, 11, 12, 25, 13, 27, 14, 30, 16, 33, 17, 35, 18, 19, 39, 20, 42, 22, 45, 23, 24, 49, 50, 51, 26, 54, 55, 28, 57, 29, 60, 31, 63, 32, 65, 66, 34, 69, 70, 36, 37, 75, 38, 77, 78, 40, 81, 41, 84, 85, 43, 87, 44, 90, 91, 46, 93, 47, 95, 48, 98 ]
[ "dead" ]
A277485
[ 0, 1, 6, 33, 216, 1865, 21228, 303765, 5222864, 104540337, 2383558740, 60933722069, 1725392415288, 53590463856345, 1811281159509500, 66172416761172890, 2598298697830361000, 109116931783034360000, 4.880122696811961e+21, 2.3156526055828905e+23 ]
[ "nonn" ]
A000451
[ 0, 9, 41, 81, 146, 194, 306, 369, 425, 594, 689, 866, 1109, 1154, 1154, 1361, 1634, 1781, 1889, 2141, 2609, 2609, 3366, 3366, 3449, 3449, 3506, 4241, 4289, 4826, 5066, 5381, 5561, 5561, 6254, 7229, 7829, 8069, 8069, 8126, 8609, 8774, 8774 ]
[ "nonn" ]
A293074
[ 2, 3, 5, 7, 11, 17, 23, 31, 43, 47, 53, 71, 107, 127, 131, 191, 197, 241, 263, 383, 431, 593, 647, 863, 967, 971, 1151, 1187, 1451, 1583, 2111, 2591, 2903, 3167, 4373, 4751, 5323, 5807, 6143, 6911, 7127, 8191, 8447, 8747, 10691, 12671, 13121, 15551, 15971, 21383, 23327 ]
[ "nonn" ]
A130552
[ 1, 24, 1080, 60480, 1512000, 7128000, 31783752000, 254270016000, 38903312448000, 67196630592000, 89438715317952000, 9308101594176000, 347648286440879400000, 347648286440879400000, 5.040900153392751e+22, 7.35378375318472e+23, 3.612913957939653e+27, 1.8401938665227434e+25 ]
[ "nonn", "frac", "easy" ]
A173729
[ 1, 4, 10, 24, 53, 106, 191, 328, 528, 822, 1230, 1794, 2542, 3534, 4802, 6428, 8460, 10996, 14087, 17870, 22405, 27850, 34286, 41896, 50773, 61148, 73116, 86942, 102751, 120840, 141343, 164618, 190808, 220306, 253292, 290202, 331226, 376872 ]
[ "nonn", "easy" ]
A009429
[ 0, 1, -1, 5, -12, 69, -285, 2001, -12208, 104073, -854865, 8723549, -90552396, 1088372557, -13647385661, 190057979177, -2787246189120, 44285819490065, -742019231348865, 13267464006201780, -249642268776311000 ]
[ "sign", "easy" ]
A145170
[ 1, 6, 57, 866, 18444, 492924, 15424611, 542166480, 20861518935, 864061112296, 38081996557383, 1771322835258594, 86425203984341140, 4402953230795279400, 233372023965531930000, 1.2832558973488296e+22, 7.303478577082491e+23 ]
[ "nonn" ]
A132696
[ 1, 9, 0, 9, 8, 5, 9, 3, 1, 7, 1, 0, 2, 7, 4, 4, 0, 2, 9, 2, 2, 6, 6, 0, 5, 1, 6, 0, 4, 7, 0, 1, 7, 2, 3, 4, 4, 4, 1, 3, 5, 1, 5, 7, 4, 8, 8, 8, 5, 4, 7, 7, 3, 8, 4, 9, 7, 2, 0, 0, 8, 1, 2, 8, 7, 0, 6, 7, 6, 1, 5, 7, 1, 6, 1, 0, 7, 1, 8, 4, 2, 1, 0, 8, 1, 3, 6, 5, 6, 3, 3, 1, 9, 5, 0, 3, 7, 0, 3, 1, 4, 7, 2, 8, 7 ]
[ "nonn", "cons" ]