id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A155708
[ 36, 129, 144, 201, 241, 324, 409, 441, 489, 516, 576, 601, 769, 804, 849, 900, 921, 964, 1009, 1129, 1161, 1201, 1249, 1296, 1321, 1489, 1521, 1569, 1609, 1636, 1641, 1764, 1801, 1809, 1849, 1929, 1956, 2064, 2089, 2161, 2169, 2281, ...
[ "nonn" ]
A329989
[ 1, 3, 1, 0, 5, 6, 9, 9, 4, 6, 5, 9, 0, 8, 0, 9, 3, 4, 5, 5, 7, 5, 1, 4, 3, 0, 7, 4, 9, 0, 8, 5, 1, 8, 5, 7, 2, 9, 9, 8, 3, 7, 3, 9, 4, 1, 4, 1, 2, 2, 5, 7, 5, 8, 0, 3, 8, 4, 8, 1, 1, 6, 0, 9...
[ "nonn", "cons", "easy" ]
A353805
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 13, 1, 1, 1, 1, 5, 1, 1, 1, 1, 1, 3, 13, 1, 1, 1, 1, 1, 1, 1, 65, 1, 1, 31, 10, 31, 1, 1, 1, 5, 13, 1, 3, 1, 1, 1, 13, 1, 1, 1, 1, 5, 57, 1, 1, 65, 1, 31, 13, 1, 5, 1, ...
[ "nonn", "frac" ]
A225491
[ 0, 4, 5, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8 ]
[ "nonn" ]
A043882
[ 12, 19, 28, 35, 44, 51, 60, 67, 79, 83, 92, 99, 108, 115, 124, 131, 143, 147, 156, 163, 172, 179, 188, 207, 211, 220, 227, 236, 243, 252, 259, 271, 275, 284, 291, 300, 319, 323, 335, 339, 348, 355, 364, 371, 380, 387, 399, ...
[ "nonn", "base" ]
A012786
[ 1, 2, -12, -432, 10000, 1500512, -18269760, -16350361856, 922523568384, 990634832194048, 92553699220882430, -44373953423964780000, 9.057208032779105e+21, 2.554043641479639e+25 ]
[ "sign" ]
A157379
[ 1, 2, 1, 3, -3, 1, 4, 6, 0, 1, 5, -10, -10, -5, 1, 6, 15, -20, 15, -6, 1, 7, -21, 0, 0, -21, -7, 1, 8, 28, 56, 0, 0, 0, 0, 1, 9, -36, 84, 126, 126, 0, 0, 0, 1, 10, 45, 0, -210, 252, -210, 0, 0, -10, 1, 11, ...
[ "sign", "tabl" ]
A321750
[ 1, 1, 1, 0, 1, 2, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 3, 6, 1, 2, 0, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 2, 2, 2, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0...
[ "nonn", "tabf" ]
A062801
[ 0, 6, 50, 192, 512, 1126, 2146, 3760, 6112, 9430, 13922, 19888, 27504, 37206, 49202, 63872, 81600, 102854, 127874, 157328, 191440, 230870, 276114, 327776, 386128, 452118, 526178, 608960, 701056, 803430, 916290, 1040976, 1177744, 1327606 ]
[ "nonn", "nice" ]
A358910
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 3, 4, 8, 11, 19, 25, 41, 56, 84, 113, 164, 218, 306, 401, 547, 711, 949, 1218, 1599, 2034, 2625, 3310, 4224, 5283, 6664, 8271, 10336, 12747, 15791, 19343, 23791, 28979, 35398, 42887, 52073, 6...
[ "nonn" ]
A233309
[ 92, 463, 2311, 9822, 41192, 160280, 617500, 2278154, 8346612, 29720846, 105322406, 365709441, 1265566649, 4312665297, 14661080626, 49240073950, 165092049733, 548097358680, 1817406550199, 5977145363030, 19640272703424, 64090628827653 ]
[ "nonn" ]
A023115
[ 1, 1, 2, 1, 2, 3, 1, 2, 3, 1, 4, 2, 3, 1, 4, 2, 5, 3, 1, 4, 2, 5, 3, 1, 6, 4, 2, 5, 3, 1, 6, 4, 2, 7, 5, 3, 1, 6, 4, 2, 7, 5, 3, 8, 1, 6, 4, 2, 7, 5, 3, 8, 1, 6, 4, 9, 2, 7, 5, 3, 8, 1, 6, 4...
[ "nonn" ]
A009814
[ 0, 1, 2, 3, -12, -163, -1178, -4529, 27496, 870169, 11481482, 85659387, -308661540, -25105525963, -525814629650, -6328753571321, -1529929548080, 2300980143865777, 71594692481521680, 1258339660640728800 ]
[ "sign", "easy" ]
A349056
[ 1, 1, 1, 1, 1, 2, 1, 1, 1, 2, 1, 3, 1, 2, 2, 1, 1, 3, 1, 3, 2, 2, 1, 4, 1, 2, 1, 3, 1, 4, 1, 1, 2, 2, 2, 4, 1, 2, 2, 4, 1, 4, 1, 3, 3, 2, 1, 5, 1, 3, 2, 3, 1, 4, 2, 4, 2, 2, 1, 6, 1, 2, 3, 1...
[ "nonn" ]
A302900
[ 1385, 21682, 350240, 4945368, 70145634, 992272308, 14322115212, 211595659320, 3216832016019, 50412205403030, 815486339550108, 13622914005990480, 235041722344009380, 4187522527966916600, 77010173788311010000, 1.4611901622268692e+21, 2.858843737999708e+22 ]
[ "nonn" ]
A247640
[ 1, 6, 6, 24, 6, 36, 24, 96, 6, 36, 36, 144, 24, 144, 96, 384, 6, 36, 36, 144, 36, 216, 144, 576, 24, 144, 144, 576, 96, 576, 384, 1536, 6, 36, 36, 144, 36, 216, 144, 576, 36, 216, 216, 864, 144, 864, 576, 2304, 24, 144...
[ "nonn" ]
A268015
[ 27, 729, 19683, 474552, 10941048, 240641848, 5106219048, 105087226959, 2107490863661, 41332013859375, 794974954718853, 15030454569975872, 279880270014528000, 5140991504979000000, 93278442949595410000 ]
[ "nonn" ]
A053839
[ 0, 1, 2, 3, 1, 2, 3, 0, 2, 3, 0, 1, 3, 0, 1, 2, 1, 2, 3, 0, 2, 3, 0, 1, 3, 0, 1, 2, 0, 1, 2, 3, 2, 3, 0, 1, 3, 0, 1, 2, 0, 1, 2, 3, 1, 2, 3, 0, 3, 0, 1, 2, 0, 1, 2, 3, 1, 2, 3, 0, 2, 3, 0, 1...
[ "base", "nonn" ]
A062991
[ 1, 2, -1, 5, -6, 2, 14, -28, 20, -5, 42, -120, 135, -70, 14, 132, -495, 770, -616, 252, -42, 429, -2002, 4004, -4368, 2730, -924, 132, 1430, -8008, 19656, -27300, 23100, -11880, 3432, -429, 4862, -31824, 92820, -157080, 168300, -11668...
[ "sign", "easy", "tabl" ]
A189705
[ 0, 1, 2, 3, 3, 4, 4, 5, 5, 5, 6, 7, 8, 8, 8, 9, 10, 11, 11, 11, 12, 13, 13, 14, 15, 16, 16, 17, 17, 18, 18, 18, 19, 20, 20, 21, 22, 23, 23, 24, 24, 25, 25, 25, 26, 27, 27, 28, 29, 30, 30, 31, 31, 31, 32, 33...
[ "nonn" ]
A150702
[ 1, 2, 8, 26, 120, 445, 2147, 8469, 41467, 169499, 836554, 3501189, 17356842, 73880787, 367245459, 1583278732, 7883708163, 34330670218, 171140161779, 751318937513, 3748302440019, 16566234386157, 82693945535411, 367557581630267, 1835471221148125, 8198050271944402, 4...
[ "nonn", "walk" ]
A384202
[ 0, 1, 1, 15, 102, 1434, 20556, 380988, 7974576, 192768336, 5214883680, 156913290720, 5188181880960, 187114724853120, 7308276334974720, 307346919257952000, 13846147184588544000, 665272996712352000000, 3.395861850054588e+22, 1.8351970003235122e+24 ]
[ "nonn", "easy" ]
A064852
[ 1, 0, 0, 1, 4, 18, 102, 624, 4476, 36248, 329890, 3326054, 36846276, 444783906, 5811885808, 81729607680, 1230752346352, 19760412095328, 336967037143578, 6082255011151724, 115852476579789980, 2322315553090616000, 48869596859895990000, 1.0771673641168002e+21 ]
[ "nice", "nonn" ]
A167340
[ 1, 8, 15, 64, 35, 120, 63, 512, 225, 280, 143, 960, 195, 504, 525, 4096, 323, 1800, 399, 2240, 945, 1144, 575, 7680, 1225, 1560, 3375, 4032, 899, 4200, 1023, 32768, 2145, 2584, 2205, 14400, 1443, 3192, 2925, 17920, 1763, 7560, 1935,...
[ "nonn", "mult" ]
A302496
[ 1, 2, 3, 5, 6, 7, 10, 11, 14, 15, 17, 19, 21, 22, 23, 30, 31, 33, 34, 35, 38, 41, 42, 46, 51, 53, 55, 57, 59, 62, 66, 67, 69, 70, 77, 82, 83, 85, 93, 95, 97, 102, 103, 105, 106, 109, 110, 114, 115, 118, 119, 123, ...
[ "nonn" ]
A086659
[ 1, 1, 3, 4, 4, 6, 11, 20, 10, 10, 41, 66, 60, 20, 15, 162, 287, 231, 140, 35, 21, 715, 1296, 1148, 616, 280, 56, 28, 3425, 6435, 5832, 3444, 1386, 504, 84, 36, 17722, 34250, 32175, 19440, 8610, 2772, 840, 120, 45, 98253, 194...
[ "nonn", "tabl", "easy" ]
A139777
[ 13008, 9268057799643918, 1.1513037807192818e+21, 1.1663984960590566e+21, 1.4088157046651678e+21, 1.61102394316053e+21, 1.8392847376451455e+21, 1.8763911739849748e+21, 2.5416721514597224e+21, 3.76026923180915e+21, 1.3232137801909374e+22, 1.9086525662779517e+22 ]
[ "nonn" ]
A077788
[ 9, 11, 17, 23, 2489, 3371, 4019, 29315, 30237, 40665, 101661, 150125 ]
[ "more", "nonn", "base" ]
A023688
[ 63, 95, 111, 119, 123, 125, 126, 159, 175, 183, 187, 189, 190, 207, 215, 219, 221, 222, 231, 235, 237, 238, 243, 245, 246, 249, 250, 252, 287, 303, 311, 315, 317, 318, 335, 343, 347, 349, 350, 359, 363, 365, 366, 371, 373 ]
[ "nonn", "base", "easy" ]
A080956
[ 1, 1, 0, -2, -5, -9, -14, -20, -27, -35, -44, -54, -65, -77, -90, -104, -119, -135, -152, -170, -189, -209, -230, -252, -275, -299, -324, -350, -377, -405, -434, -464, -495, -527, -560, -594, -629, -665, -702, -740, -779, -819, -860...
[ "sign", "easy" ]
A338060
[ 1, 2, 5, 3, 8, 4, 11, 13, 6, 19, 17, 14, 29, 12, 7, 20, 34, 21, 38, 26, 22, 25, 41, 51, 9, 30, 15, 31, 58, 47, 64, 36, 16, 35, 10, 55, 73, 37, 28, 43, 79, 46, 92, 61, 27, 42, 97, 90, 23, 60, 33, 66, 133, 95, ...
[ "nonn" ]
A099880
[ 1, 2, 18, 260, 5250, 136332, 4327092, 162309576, 7024896450, 344582629820, 18890850749628, 1144656941236536, 75963981061424820, 5479642938171429000, 426894499408073650000, 3.572095748217093e+22, 3.195135789350679e+24, 3.0423403284536246e+26 ]
[ "nonn" ]
A153116
[ 5, 7, 13, 19, 29, 41, 61, 97, 113, 139, 191, 379, 383, 401, 491, 719, 953, 1051, 1367, 1553, 1609, 1657, 1667, 1801, 1933, 2129, 2207, 2351, 2473, 3001, 3023, 3061, 3449, 3571, 3863, 3943, 3967, 4073, 4219, 5167, 5209, 5683, 5783, ...
[ "nonn", "easy" ]
A160254
[ 1, 2, 4, 7, 13, 24, 44, 81, 151, 280, 525, 984, 1859, 3511, 6682, 12709, 24334, 46565, 89626, 172381, 333262, 643733, 1249147, 2421592, 4713715, 9165792, 17888456, 34873456, 68212220, 133269997, 261167821, 511211652, 1003436520, 1967293902 ]
[ "nonn", "easy" ]
A230374
[ 1, 2, 3, 4, 6, 8, 10, 12, 15, 16, 18, 20, 24, 28, 30, 36, 40, 42, 45, 48, 54, 56, 60, 66, 70, 72, 78, 80, 84, 90, 96, 100, 102, 104, 105, 108, 112, 120, 126, 132, 138, 140, 144, 150, 156, 160, 168, 176, 180, 192, 198...
[ "nonn" ]
A197242
[ 1, 1, 1, 1, 2, 1, 1, 5, 5, 1, 1, 8, 15, 8, 1, 1, 18, 46, 46, 18, 1, 1, 37, 156, 231, 156, 37, 1, 1, 73, 507, 1221, 1221, 507, 73, 1, 1, 151, 1637, 6284, 10649, 6284, 1637, 151, 1, 1, 306, 5338, 32754, 89527, 89527, ...
[ "nonn", "tabl" ]
A055743
[ 2, 6, 10, 12, 15, 20, 24, 30, 34, 40, 42, 48, 51, 60, 66, 68, 70, 78, 80, 84, 85, 90, 96, 102, 105, 110, 114, 120, 126, 130, 132, 136, 138, 140, 150, 156, 160, 165, 168, 170, 174, 180, 182, 190, 192, 195, 204, 210, 220, ...
[ "nonn" ]
A328206
[ 244, 844, 1444, 1727, 5164, 5764, 5950, 10084, 10967, 13583, 15190, 20207, 21130, 22048, 40444, 40535, 41044, 45364, 45550, 56015, 60730, 62848, 63479, 80644, 91408, 132208, 153340, 163799, 173008, 176110, 178007, 195983, 242368, 280852, 283168, ...
[ "nonn", "base" ]
A003145
[ 2, 6, 9, 13, 15, 19, 22, 26, 30, 33, 37, 39, 43, 46, 50, 53, 57, 59, 63, 66, 70, 74, 77, 81, 83, 87, 90, 94, 96, 100, 103, 107, 111, 114, 118, 120, 124, 127, 131, 134, 138, 140, 144, 147, 151, 155, 158, 162, 164, 168, ...
[ "nonn" ]
A235267
[ 3, 5, 33, 35, 43, 69, 86, 106, 108, 116, 124, 127, 171, 174, 182, 200, 201, 238, 255, 256, 270, 271, 277, 294, 310, 318, 323, 332, 356, 384, 388, 390, 392, 397, 398, 402, 409, 469, 494, 495, 520, 542, 551, 562, 572, 582, 606...
[ "nonn" ]
A295755
[ 1, 2, 3, 4, 13, 25, 40, 66, 114, 190, 308, 502, 821, 1335, 2162, 3503, 5678, 9195, 14881, 24084, 38980, 63080, 102071, 165162, 267250, 432430, 699693, 1132136, 1831848, 2964004, 4795867, 7759886, 12555774, 20315682, 32871473, 53187172, 86058669...
[ "nonn", "easy" ]
A315432
[ 1, 6, 11, 15, 22, 28, 34, 39, 43, 48, 54, 62, 67, 71, 76, 82, 88, 93, 99, 104, 110, 116, 121, 125, 130, 138, 144, 149, 153, 158, 164, 170, 177, 181, 186, 192, 198, 203, 207, 214, 220, 226, 231, 235, 240, 246, 254, 259, 2...
[ "nonn" ]
A259077
[ 366, 663, 3245, 3685, 5423, 5863, 8178, 8718, 14269, 15167, 16237, 18449, 18977, 36679, 73261, 76151, 77981, 94481, 96241, 97663, 140941, 149041, 150251, 152051, 196891, 198691, 302363, 308459, 319853, 335148, 358913, 363203, 841533, 921239, 932129...
[ "nonn", "base" ]
A161989
[ 0, 1, 2, 4, 7, 8, 11, 13, 14, 15, 16, 19, 21, 22, 23, 25, 26, 27, 28, 29, 30, 31, 32, 35, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 67, 69, 70, 71, ...
[ "nonn" ]
A315705
[ 1, 6, 12, 17, 23, 29, 34, 42, 47, 51, 59, 65, 69, 76, 81, 88, 92, 99, 106, 109, 115, 124, 128, 134, 140, 145, 151, 157, 164, 169, 173, 180, 187, 191, 199, 204, 208, 216, 222, 227, 233, 237, 245, 250, 256, 263, 266, 272, ...
[ "nonn" ]
A074870
[ 4, 6, 12, 15, 12, 21, 56, 18, 30, 473, 60, 26, 42, 30, 176, 34, 198, 4883, 60, 42, 154, 69, 72, 50, 754, 81, 56, 667, 60, 93, 64, 99, 102, 105, 72, 111, 76, 195, 120, 205, 462, 86, 1364, 225, 138, 3337, 144, 2303, 150, ...
[ "easy", "nonn" ]
A366898
[ 1, 2, 2, 6, 4, 2, 4, 4, 4, 4, 6, 4, 12, 10, 8, 48, 8, 4, 8, 4, 16, 16, 8, 8, 4, 8, 8, 16, 24, 2, 8, 4, 8, 32, 8, 32, 4, 8, 4, 24, 16, 8, 32, 8, 16, 24, 40, 16, 16, 8, 8, 16, 24, 8, 16, 8, 16, 6, 32, ...
[ "nonn" ]
A093814
[ 1, 5, 2, 0, 3, 4, 6, 9, 0, 1, 0, 6, 6, 2, 8, 0, 8, 0, 5, 6, 1, 1, 9, 4, 0, 1, 4, 6, 7, 5, 4, 9, 7, 5, 6, 2, 7, 0, 3, 6, 1, 0, 7, 4, 1, 8, 7, 7, 9, 0, 4, 6, 3, 3, 7, 5, 2, 8, 3, 6, 3, 8, 6, 8...
[ "cons", "nonn" ]
A184070
[ 160, 529, 5800, 126978, 4136338, 116690636, 2770530466, 52431215293, 815858815795, 10481797492543, 110945811109376, 969268941798697, 7097493179383915, 43883325663965864, 231088111095174430 ]
[ "nonn" ]
A061787
[ 1, 28, 3153, 826696, 388247185, 285699917796, 303160806510049, 438197051187369400, 827678458937524100000, 1.9792473341192512e+24, 5.844566265720102e+27, 2.088631256611363e+31 ]
[ "nonn", "easy" ]
A060451
[ 1, 3, 2, 7, 4, 3, 15, 5, 5, 4, 31, 9, 6, 6, 5, 63, 13, 7, 7, 7, 6, 127, 19, 11, 8, 8, 8, 7, 255 ]
[ "nonn", "tabl", "nice", "hard" ]
A308209
[ 0, 0, 1, 0, 1, 0, 2, 1, 2, 0, 4, 2, 5, 1, 4, 3, 8, 2, 10, 5, 7, 3, 14, 5, 13, 5, 13, 9, 21, 7, 24, 12, 17, 9, 20, 10, 33, 12, 24, 15, 40, 13, 44, 22, 24, 18, 52, 18, 48, 22, 40, 30, 65, 21, 50, 31, 49, ...
[ "nonn" ]
A353639
[ 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0...
[ "nonn" ]
A349830
[ 0, 2, 5, 7, 9, 10, 11, 12, 14, 16, 17, 19, 22, 24, 26, 27, 28, 29, 31, 33, 34, 36, 38, 40, 41, 43, 44, 45, 49, 50, 53, 55, 57, 58, 60, 61, 62, 65, 66, 67, 68, 69, 70, 72, 74, 75, 76, 77, 79, 81, 82, 84, 87, 89,...
[ "nonn", "base" ]
A211363
[ 0, 1, 3, 2, 4, 5, 9, 11, 8, 10, 16, 17, 6, 7, 13, 15, 12, 14, 18, 19, 21, 20, 22, 23, 33, 35, 41, 39, 45, 47, 32, 34, 40, 38, 44, 46, 64, 65, 70, 71, 30, 31, 37, 36, 42, 43, 61, 63, 67, 69, 60, 62, 66, 68, 90...
[ "nonn", "base", "look" ]
A300851
[ 0, 0, 6, 2880, 83400, 1742400, 32810400, 600606720, 11049696000, 207712512000, 4024212192000, 80721349632000, 1680305519692800, 36334168206336000, 816328800967680000, 19051455560417280000, 461604030434426900000, 1.160325235234426e+22 ]
[ "nonn" ]
A059204
[ 0, 0, 0, 2, 16, 104, 688, 4976, 40192, 362624, 3628288, 39915776, 478999552, 6227016704, 87178283008, 1307674351616, 20922789855232, 355687428030464, 6402373705596928, 121645100408569860, 2432902008176115700, 51090942171708390000, 1.1240007277776056e+21 ]
[ "easy", "nonn" ]
A152309
[ 397, 7867, 10243, 10333, 12853, 13789, 14149, 14293, 14563, 15643, 17659, 18379, 18541, 21277, 21997, 23059, 23203, 26731, 27739, 29179, 29683, 31771, 34147, 35461, 35803, 36541, 37747, 39979, 40213, 40429, 41131, 41491, 44029, 44101 ]
[ "nonn" ]
A071274
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 101, 192, 283, 374, 465, 556, 647, 738, 829, 20, 111, 202, 293, 384, 475, 566, 657, 748, 839, 30, 121, 212, 303, 394, 485, 576, 667, 758, 849, 40, 131, 222, 313, 404, 495, 586, 677, 768, 85...
[ "base", "nonn" ]
A207806
[ 26, 676, 4374, 43990, 382288, 3511534, 31569510, 285774964, 2580956950, 23333448086, 210885788448, 1906172464566, 17228491782138, 155715573550500, 1407388340653890, 12720361717357138, 114970670286577870 ]
[ "nonn" ]
A149683
[ 1, 1, 5, 17, 67, 261, 1125, 4807, 21063, 93087, 418511, 1895903, 8658021, 39797041, 184054589, 855402747, 3992836245, 18713274261, 88014462373, 415230430467, 1964476751047, 9318284134905, 44304313435367, 211089835259237, 1007731945147113, 4819615856837885, 2308891...
[ "nonn", "walk" ]
A208397
[ 122, 88574, 53466192, 33085555344, 20413586117376, 12599441934740388, 7776176148498499000, 4.799354153334998e+21, 2.962097148583259e+24, 1.8281668083745938e+27, 1.1283201374015322e+30 ]
[ "nonn" ]
A168353
[ 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 6, 6, 6, 3, 6, 3, 6, 6, 6, 3, 6, 6, 6, 6, 6, 3, 3, 6, 6, 3, 3, 3, 3, 3, 3, 6, 6, 6, 6, 6, 6, 6, 3, 6, 6, 6, 6, 3...
[ "nonn", "base" ]
A170297
[ 1, 48, 2256, 106032, 4983504, 234224688, 11008560336, 517402335792, 24317909782224, 1142941759764528, 53718262708932820, 2524758347319842300, 118663642324032590000, 5.577191189229532e+21, 2.62127985893788e+23 ]
[ "nonn" ]
A389931
[ 2, 8, 6, 5, 9, 4, 9, 8, 5, 4, 3, 7, 3, 5, 2, 7, 8, 3, 4, 4, 9, 1, 5, 7, 1, 3, 0, 7, 5, 4, 7, 2, 7, 3, 2, 6, 2, 7, 3, 0, 2, 4, 4, 0, 8, 5, 0, 3, 0, 0, 1, 6, 4, 7, 2, 8, 7, 9, 0, 9, 4, 3, 8, 7...
[ "nonn", "cons", "easy" ]
A151475
[ 1, 0, 3, 2, 23, 35, 258, 591, 3538, 10378, 55110, 189260, 937965, 3566795, 17014249, 69167067, 323493034, 1374890250, 6373894066, 27922300363, 129121327852, 577728005802, 2674276420225, 12149013493835, 56397695554652, 259129442571387, 1207399214941454, 559625147...
[ "nonn", "walk" ]
A072012
[ 1, 2, 1, 4, 5, 2, 7, 8, 1, 10, 1, 4, 7, 14, 5, 16, 17, 2, 19, 20, 7, 2, 5, 8, 25, 14, 1, 28, 29, 10, 31, 32, 1, 34, 35, 4, 15, 38, 7, 40, 41, 14, 43, 4, 5, 10, 7, 16, 49, 50, 17, 28, 63, 2, 5, 56, 19, 5...
[ "nonn", "mult" ]
A039033
[ 1, 2, 3, 5, 6, 8, 9, 10, 12, 13, 15, 16, 17, 19, 20, 22, 23, 24, 26, 27, 28, 36, 37, 38, 40, 41, 43, 44, 45, 47, 48, 53, 57, 58, 59, 61, 62, 64, 65, 66, 68, 69, 71, 72, 73, 75, 76, 77, 85, 86, 87, 89, 90, 92, ...
[ "nonn", "base", "easy" ]
A207748
[ 9, 81, 289, 900, 3249, 11449, 42436, 157609, 597529, 2280100, 8791225, 34093921, 133033156, 521345889, 2051093521, 8093881156, 32021313025, 126943276681, 504097160004, 2004526450969, 7979839669321, 31795772223076, 126783929266569 ]
[ "nonn" ]
A028244
[ 0, 0, 0, 6, 60, 390, 2100, 10206, 46620, 204630, 874500, 3669006, 15195180, 62350470, 254135700, 1030793406, 4166023740, 16792841910, 67558001700, 271392695406, 1089054420300, 4366671742950, 17498055448500, 70086339807006 ]
[ "nonn", "easy" ]
A060764
[ 1, 1, 2, 1, 2, 2, 2, 1, 3, 2, 2, 3, 2, 2, 4, 1, 2, 3, 2, 2, 4, 2, 2, 4, 3, 2, 4, 2, 2, 4, 2, 1, 4, 2, 4, 4, 2, 2, 4, 4, 2, 4, 2, 2, 6, 2, 2, 5, 3, 3, 4, 2, 2, 4, 4, 4, 4, 2, 2, 5, 2, 2, 6, 1...
[ "nonn" ]
A152511
[ 0, 1, 4194, 5825786, 5682784528, 4873147413516, 3978083870212150, 3186605615943562000, 2.5343758659661846e+21, 2.0102752664258058e+24, 1.59300277719891e+27, 1.2619003750418249e+30, 9.994922369370502e+32, 7.916163110223767e+35 ]
[ "nonn" ]
A231544
[ 2, 2, 2, 4, 6, 4, 7, 20, 20, 7, 12, 57, 116, 57, 12, 21, 164, 589, 589, 164, 21, 37, 485, 3001, 5235, 3001, 485, 37, 65, 1424, 15644, 46122, 46122, 15644, 1424, 65, 114, 4169, 81179, 417298, 698721, 417298, 81179, 4169, 114, 2...
[ "nonn", "tabl" ]
A274737
[ 1, 3, 24, 225, 2451, 28584, 350811, 4456971, 58132194, 773773785, 10468458657, 143528736888, 1989864432072, 27848242441521, 392899157668962, 5582238744258009, 79799757710924850, 1146961633262521700, 16564959319032187000, 240274065224349970000, 3.4987430540277255e+21, 5.1126...
[ "nonn" ]
A077265
[ 14, 28, 52, 94, 170, 312, 584, 1114, 2158, 4228, 8348, 16566, 32978, 65776, 131344, 262450, 524630, 1048956, 2097572, 4194766, 8389114, 16777768, 33555032, 67109514, 134218430, 268436212, 536871724, 1073742694, 2147484578, 4294968288, 8589935648, 1717987...
[ "nonn", "easy" ]
A215426
[ 2, 5, 19, 23, 43, 59, 61, 97, 101, 137, 139, 157, 173, 191, 211, 229, 233, 251, 271, 347, 367, 401, 419, 439, 443, 457, 461, 479, 499, 557, 571, 593, 613, 631, 647, 709, 727, 743, 761, 821, 823, 857, 859, 937, 971, 1009, 101...
[ "nonn", "easy" ]
A281747
[ 5, 26, 1068, 82681, 5392282366, 11356596271444, 34451905517028760000, 3.406255143466761e+23, 3.0831843222360732e+29, 8.566187045843935e+39, 1.0998620527027743e+45, 8.170421001593886e+54 ]
[ "nonn", "hard" ]
A067194
[ 23, 61, 163, 521, 821, 1297, 1861, 4201, 9049, 9631, 12391, 14437, 16987, 92767, 94273, 96979, 108061, 123031, 125329, 127291, 142771, 148249, 165901, 180289, 270131, 906421, 906727, 906751, 921931, 942013, 942691, 965443, 969407, 986641 ]
[ "nonn", "base" ]
A103766
[ 17, 97, 257, 641, 1297, 881, 2417 ]
[ "easy", "nonn" ]
A145128
[ 1, 4, 13, 38, 99, 231, 490, 960, 1761, 3058, 5071, 8086, 12467, 18669, 27252, 38896, 54417, 74784, 101137, 134806, 177331, 230483, 296286, 377040, 475345, 594126, 736659, 906598, 1108003, 1345369, 1623656, 1948320, 2325345, 2761276, 3263253, 3839...
[ "nonn", "easy" ]
A341275
[ 1, 4, 60, 3328, 678912, 508035072, 1392439459840, 13965623033856000, 512247880383411000000, 6.868328494245152e+25, 3.3654191472236764e+31, 6.024825727448067e+37, 3.939946893183037e+44 ]
[ "nonn" ]
A307336
[ 5, 4, 3, 2, 1, 0, 5, 5, 5, 5, 5, 5, 4, 3, 2, 1, 0, 5, 5, 4, 3, 2, 1, 5, 5, 0, 5, 5, 5, 5, 5, 4, 4, 3, 2, 1, 0, 5, 3, 2, 1, 5, 4, 5, 5, 0, 5, 3, 5, 2, 1, 0, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4...
[ "base", "nonn" ]
A153962
[ 1, 2, 2, 4, 14, 16, 75, 552, 1667, 11886, 186036, 1025514, 13006464, 369745208, 3793772311, 86085692189 ]
[ "nonn", "more" ]
A178641
[ 11, 17, 19, 23, 41, 43, 53, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 227, 229, 233, 239, 241, 251, 257, 263, 269, 271, 277, 28...
[ "nonn" ]
A221613
[ 0, 16, 1522, 184193, 19521328, 2114436826, 229719706276, 25028839210435, 2726511526305974 ]
[ "nonn" ]
A104113
[ 0, 1, 81, 100, 1296, 2025, 3025, 6724, 8281, 9801, 10000, 55225, 88209, 136161, 136900, 143641, 171396, 431649, 455625, 494209, 571536, 627264, 826281, 842724, 893025, 929296, 980100, 982081, 998001, 1000000, 1679616, 2896804, 3175524, 4941729, 744...
[ "nonn", "base" ]
A261081
[ 0, 1, 2, 3, 5, 7, 10, 15, 23, 34, 51, 76, 113, 169, 254, 384, 583, 888, 1357, 2080, 3198, 4931, 7624, 11817, 18356, 28567, 44529, 69503, 108606, 169868, 265898, 416506, 652844, 1023945, 1607063, 2524041, 3967245, 6240679, 9825201, 1548198...
[ "nonn" ]
A274212
[ 1, 3, 5, 9, 11, 15, 17, 25, 27, 29, 33, 41, 45, 51, 55, 59, 71, 75, 81, 85, 87, 99, 101, 107, 121, 123, 125, 135, 137, 145, 149, 153, 165, 177, 179, 187, 191, 197, 205, 213, 225, 227, 239, 243, 255, 261, 269, 275, 281, ...
[ "nonn" ]
A059961
[ 4, 6, 12, 18, 72, 108, 192, 432, 1152, 2592, 139968, 472392, 786432, 995328, 57395628, 63700992, 169869312, 4076863488, 10871635968, 2348273369088, 56358560858112, 79164837199872, 84537841287168, 150289495621632 ]
[ "dead" ]
A378989
[ 1, 0, -1, 0, -1, 0, -2, 0, 1, 0, -2, 0, -2, 0, 1, 0, -1, 0, -2, 0, 5, 0, -3, 0, 0, 0, -3, 0, -3, 0, -4, 0, 6, 0, 5, 0, -2, 0, 4, 0, -2, 0, -3, 0, -1, 0, -4, 0, 4, 0, 1, 0, -3, 0, 3, 0, 4, 0, -4, 0, ...
[ "sign" ]
A390182
[ 1, 1, 3, 28, 269, 3576, 57607, 1108864, 24846873, 635796352, 18311102891, 586410177024, 20678425176037, 796318634865664, 33257372618180270, 1497378036098031600, 72306399781070950000, 3.727918866731406e+21, 2.0439809838205068e+23, 1.1876234811106617e+25 ]
[ "nonn" ]
A204850
[ 1, -6, 0, -5, 0, 0, -7, 0, 0, 0, -18, 0, 0, 0, 0, 11, 0, 0, 0, 0, 0, -13, 0, 0, 0, 0, 0, 0, 30, 0, 0, 0, 0, 0, 0, 0, 17, 0, 0, 0, 0, 0, 0, 0, 0, 19, 0, 0, 0, 0, 0, 0, 0, 0, 0, 42, 0, 0, 0, 0, 0, ...
[ "sign" ]
A222019
[ 60, 70994, 41636522, 27460842224, 17838051289367, 11593944359617570, 7538777970648890000, 4.901063986390211e+21, 3.1864083365563403e+24 ]
[ "nonn" ]
A189693
[ 64, 4096, 61996, 997264, 11451149, 140346362, 1553640701, 17872674996, 198287096355, 2240961706438, 24972074224456, 280570140162495, 3134318411211896, 35138150310304640, 392994307064069000 ]
[ "nonn" ]
A287315
[ 1, 0, 1, 0, 1, 3, 0, 1, 16, 19, 0, 1, 65, 299, 211, 0, 1, 246, 3156, 7346, 3651, 0, 1, 917, 28722, 160322, 237517, 90921, 0, 1, 3424, 245407, 2864912, 9302567, 9903776, 3081513, 0, 1, 12861, 2041965, 46261609, 288196659, 632274183, ...
[ "nonn", "tabl" ]
A084910
[ 2, 13, 34, 89, 2584, 17711, 75025, 196418, 832040, 9227465, 433494437, 2971215073, 12586269025, 32951280099, 139583862445, 365435296162, 1548008755920, 4052739537881, 10610209857723, 27777890035288, 72723460248141 ]
[ "nonn" ]
A144434
[ 1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 2, 3, 2, 1, 1, 3, 5, 5, 3, 1, 1, 4, 7, 9, 7, 4, 1, 1, 4, 9, 14, 14, 9, 4, 1, 1, 4, 12, 21, 25, 21, 12, 4, 1, 1, 5, 15, 30, 42, 42, 30, 15, 5, 1, 1, 6, 18, 41, 66, ...
[ "nonn", "tabl" ]
A138803
[ 0, 1, 3, 8, 20, 47, 105, 224, 456, 881, 1595, 2632, 3692, 3359, -2927, -27776, -103088, -304607, -803149, -1966392, -4549884, -10029361, -21114759, -42375200, -80491880, -142437359, -226667157, -294543992, -191015460, 556551487, 3216934945 ]
[ "sign", "easy" ]
A319286
[ 1, 2, 9, 67, 573, 6933, 97147, 1666999 ]
[ "nonn", "more" ]
A187515
[ 0, 0, 0, 398, 3868, 13796, 31548, 56952, 89684, 129637, 176796, 231161, 292732, 361509, 437492, 520681, 611076, 708677, 813484, 925497, 1044716, 1171141, 1304772, 1445609, 1593652, 1748901, 1911356, 2081017, 2257884, 2441957, 2633236 ]
[ "nonn" ]