id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A284607
[ 1, 4, 18, 52, 159, 396, 1004, 2260, 5103, 10680, 22260, 44028, 86453, 163424, 306288, 557716, 1006524, 1775844, 3105740, 5333208, 9081243, 15231504, 25343808, 41636124, 67891309, 109500440, 175378446, 278234720, 438540456, 685449000, 1064868020, 16420375...
[ "nonn" ]
A183741
[ 147, 2553, 55857, 1389521, 33587307, 829488619, 20777533329, 526362000253, 13427566678795, 344521962594233, 8881010153820905, 229838062571779170, 5967837405163476000, 155396432549860050000, 4.056271778433577e+21 ]
[ "nonn" ]
A004108
[ 1, 1, 0, 1, 3, 11, 61, 507, 7442, 197772, 9808209, 902884343, 153723152913, 48443147912137, 28363697921914476, 30996525982586675000, 6.350203438527211e+22, 2.4485254542159744e+26, 1.7831616114899374e+30, 2.4603891216883235e+34 ]
[ "nonn" ]
A062714
[ 1, 3, 7, 12, 19, 28, 39, 52, 66 ]
[ "nonn", "nice", "more" ]
A268350
[ 7, 13, 79, 97, 223, 349, 673, 1087, 1213, 1663, 3697, 13309, 13687, 16927, 20479, 21139, 25999, 32797, 33613, 78649, 122449, 151549, 263167, 401407, 651247, 1058749, 1656247, 1893373, 2060449, 2146687, 3058873, 3276799, 3733207, 3866623, 3880897, ...
[ "nonn" ]
A330211
[ 1, 1, 1, 2, 8, 28, 143, 747, 4346, 25974, 160869, 1015723, 6531611, 42592880 ]
[ "nonn", "hard", "more" ]
A025039
[ 1, 1716, 66512160, 19688264481600, 26478825654361768000, 1.1905907392636439e+26, 1.4610348543962678e+33, 4.2354925592620125e+40, 2.603748678087112e+48, 3.121308092524248e+56 ]
[ "nonn" ]
A012687
[ 1, 0, -12, 480, -18480, 176640, 149396544, -38742692352, 6743113079040, -363222941859840, -455485254371044350, 322516524038804700000, -1.3531672516966325e+23, 1.9655917963465136e+25 ]
[ "sign" ]
A270524
[ 3, 15, 138, 8259, 239711437, 11635520651781428, 2.7093570249697895e+31, 1.7221381223417807e+62 ]
[ "nonn", "frac", "easy" ]
A163665
[ 2, 3, 19, 37, 719, 1511, 5443, 69709, 386093, 1907819, 10777931, 17819101, 18653749, 56125547, 60163267, 98911811, 272887613, 567611663, 989060309, 2444540149 ]
[ "more", "nonn" ]
A195594
[ 128, 2102, 15988, 81606, 327192, 1118398, 3419648, 9643562, 25603228, 64923594, 158877948, 378088270, 879980720, 2011806182, 4532900488, 10091643138, 22244251284, 48622120786, 105526014500, 227633451206, 488451508168, 1043298475662, 2219419264848 ]
[ "nonn" ]
A052798
[ 1, 1, 5, 40, 355, 3475, 35836, 384436, 4243860, 47905385, 550404336, 6415528666, 75677788275, 901728156490, 10837196405920, 131215506276862, 1599078373019073, 19598996116313000, 241433496694878600 ]
[ "easy", "nonn" ]
A017605
[ 7, 19, 31, 43, 55, 67, 79, 91, 103, 115, 127, 139, 151, 163, 175, 187, 199, 211, 223, 235, 247, 259, 271, 283, 295, 307, 319, 331, 343, 355, 367, 379, 391, 403, 415, 427, 439, 451, 463, 475, 487, 499, 511, 523, 535, 547, 559...
[ "nonn", "easy" ]
A219709
[ 10, 45, 297, 1860, 9674, 46026, 207161, 881386, 3529403, 13308249, 47441049, 160715914, 520052472, 1614574538, 4827357204, 13942039190, 38993642992, 105830455516, 279212564425, 717166808833, 1795734297356, 4388518752029 ]
[ "nonn" ]
A209419
[ 1, 1, 1, 2, 3, 1, 3, 8, 6, 1, 5, 17, 21, 10, 1, 8, 35, 58, 45, 15, 1, 13, 68, 144, 154, 85, 21, 1, 21, 129, 330, 452, 350, 147, 28, 1, 34, 239, 719, 1198, 1195, 714, 238, 36, 1, 55, 436, 1506, 2959, 3611, 2799, 134...
[ "nonn", "tabl" ]
A223417
[ 7, 12, 26, 48, 104, 192, 416, 768, 1664, 3072, 6656, 12288, 26624, 49152, 106496, 196608, 425984, 786432, 1703936, 3145728, 6815744, 12582912, 27262976, 50331648, 109051904, 201326592, 436207616, 805306368, 1744830464, 3221225472 ]
[ "nonn" ]
A172854
[ 0, 0, 21, 305872, 50984927470, 47703798786066840, 2.09367461452656e+23, 3.715952487541218e+30, 2.3554079278397495e+38, 4.802320140859625e+46 ]
[ "nonn" ]
A382169
[ 0, 1, 7, 17, 38, 74, 119, 185, 263, 368, 504, 657, 847, 1078, 1331, 1631, 1956, 2334, 2769, 3234, 3762, 4323, 4953, 5656, 6397, 7217, 8120, 9066, 10101, 11182, 12358, 13633, 14959, 16390, 17930, 19526, 21237, 23007, 24898, 26914, 28994,...
[ "nonn" ]
A124770
[ 0, 1, 1, 2, 1, 3, 3, 3, 1, 3, 2, 5, 3, 5, 5, 4, 1, 3, 3, 5, 3, 5, 5, 7, 3, 5, 5, 8, 5, 8, 7, 5, 1, 3, 3, 5, 2, 6, 6, 7, 3, 6, 3, 8, 6, 7, 8, 9, 3, 5, 6, 8, 6, 8, 7, 11, 5, 8, 8, 11, 7, 11, 9, ...
[ "easy", "nonn", "tabf" ]
A382663
[ 1, 3, 8, 15, 24, 24, 48, 80, 72, 120, 120, 168, 144, 192, 288, 240, 360, 360, 384, 360, 528, 624, 504, 720, 840, 576, 960, 960, 864, 1152, 1200, 1368, 1080, 1344, 1680, 1152, 1848, 1800, 1920, 1584, 2208, 2400, 1872, 2304, 2520,...
[ "nonn", "easy" ]
A084965
[ 1, 1, 6, 44, 386, 3852, 42640, 516791, 6817378, 98091071, 1569786228 ]
[ "nonn", "hard", "more" ]
A365591
[ 1, 5, 8, 17, 28, 33, 40, 41, 49, 52, 64, 65, 69, 77, 92, 93, 108, 109, 120, 121, 136, 137, 140, 144, 165, 200, 201, 204, 225, 229, 265, 269, 272, 280, 292, 312, 325, 332, 337, 344, 356, 361, 369, 376, 388, 457, 464, 473, ...
[ "nonn", "easy" ]
A041737
[ 1, 1, 3, 10, 43, 526, 569, 5078, 5647, 72842, 297015, 963887, 2224789, 3188676, 123394477, 126583153, 376560783, 1256265502, 5401622791, 66075738994, 71477361785, 637894633274, 709371995059, 9150358573982, 37310806290987, 121082777446943 ]
[ "nonn", "frac", "easy" ]
A369293
[ 1, 2, 4, 6, 3, 5, 9, 7, 14, 8, 10, 12, 15, 17, 18, 16, 20, 22, 11, 29, 23, 13, 26, 24, 27, 21, 28, 30, 32, 34, 33, 31, 62, 36, 35, 42, 38, 19, 53, 39, 40, 43, 25, 50, 44, 46, 45, 48, 51, 54, 49, 56, 52, 57, 5...
[ "nonn", "base" ]
A151538
[ 1, 2, 6, 14, 40, 102, 284, 752, 2069, 5547, 15134, 40712, 110456, 297066, 802808, 2156378, 5810329, 15584271, 41894990, 112217372, 301115391, 805584175, 2158366236, 5768337730, 15435275815, 41214200699, 110164972820, 293922598172, 784925297952, 2092745480990...
[ "nonn", "hard" ]
A119791
[ 1, 2, 4, 5, 3, 6, 8, 7, 6, 12, 12, 15, 8, 10, 12, 14, 8, 15, 8, 12, 18, 18, 12, 18, 18, 18, 12, 20, 12, 24, 16, 10, 16, 12, 24, 24, 16, 12, 18, 30, 16, 24, 16, 14, 24, 20, 12, 21, 8, 15, 12, 20, 12, 20, 18, ...
[ "nonn" ]
A347266
[ 1, 1, 3, 2, 3, 5, 6, 4, 7, 9, 12, 10, 12, 9, 29, 16, 24, 22, 24, 17, 57, 36, 48, 40, 50, 36, 57, 65, 96, 92, 96, 64, 114, 72, 101, 161, 192, 144, 228, 136, 192, 178, 192, 129, 473, 288, 384, 320, 388, 304, 456, 258...
[ "nonn", "base", "look" ]
A143689
[ 1, 2, 6, 13, 23, 36, 52, 71, 93, 118, 146, 177, 211, 248, 288, 331, 377, 426, 478, 533, 591, 652, 716, 783, 853, 926, 1002, 1081, 1163, 1248, 1336, 1427, 1521, 1618, 1718, 1821, 1927, 2036, 2148, 2263, 2381, 2502, 2626, 2753, 28...
[ "nonn", "easy" ]
A044592
[ 24, 88, 152, 199, 216, 280, 344, 408, 472, 536, 600, 664, 711, 728, 792, 856, 920, 984, 1048, 1112, 1176, 1223, 1240, 1304, 1368, 1432, 1496, 1599, 1624, 1688, 1735, 1752, 1816, 1880, 1944, 2008, 2072, 2136, 2200, 2247, 2264 ]
[ "nonn", "base" ]
A304588
[ 3, 5, 9, 10, 17, 18, 19, 20, 33, 34, 35, 36, 37, 38, 39, 40, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 1...
[ "nonn" ]
A069239
[ 3, 3, 3, 3, 33, 3, 3, 51, 57, 33, 3, 3, 3, 3, 33, 51, 3, 57, 3, 1353, 129, 3, 3, 51, 33, 3, 57, 3, 177, 33, 3, 51, 201, 3, 33, 4161, 3, 3, 3, 23001, 249, 129, 3, 267, 627, 3, 3, 4947, 3, 33, 3, 3, 321, 57, 33...
[ "nonn", "frac" ]
A150179
[ 1, 2, 6, 20, 78, 294, 1232, 5054, 21840, 94060, 414734, 1841452, 8258804, 37354536, 169989700, 778394626, 3584284230, 16570124008, 76984172720, 358776753034, 1678242178310, 7874377974572, 37042326513184, 174754402790452, 826160373343962, 3914741263937712, 18587462...
[ "nonn", "walk" ]
A356928
[ 0, 4, 9, 15, 60, 106 ]
[ "nonn", "hard", "more" ]
A366867
[ 935, 1729, 4301, 11339, 49321, 102131, 146969, 298351, 386389, 1089019, 1221191, 3864241, 5171489, 12640949, 16965341, 18181979, 21243961, 43974269, 51881689, 178433279, 208506509, 223626691, 230324329, 270816731, 278421569, 393806449, 849244031, 932539661 ]
[ "nonn" ]
A187715
[ 1, 5, 11, 15, 21, 25, 31, 35, 41, 45, 51, 55, 61, 65, 71, 75, 81, 85, 91, 95, 101, 105, 111, 115, 121, 125, 131, 135, 141, 145, 151, 155, 161, 165, 171, 175, 181, 185, 191, 195, 201, 205, 211, 215, 221, 225 ]
[ "nonn", "easy" ]
A346714
[ 0, 2, 2, -4, -26, 100, 74, -964, -7438, 45972, 486806, -218644, -55169462, 662381044, 328098718, -21019858108, -9375927526, 20435090284868, 1203410229242, -1072522899634372, -13371923279768194, 93925510336152270, 4777233165759980000, -179655667413148960 ]
[ "sign", "frac" ]
A145411
[ 60, 12000, 1758360, 261136920, 38768711160, 5755703361240, 854506434905400, 126862210606868770, 18834288215839120000, 2.796186594116564e+21, 4.1512901254962e+23, 6.163111482725288e+25 ]
[ "nonn" ]
A186391
[ 1, 4, 32, 340, 4096, 52704, 705956, 9717488, 136443904, 1945097296, 28063032832, 408836809088, 6004266204964, 88779091937488, 1320294416004736, 19733192546306640, 296219343194357760, 4463668854432401400 ]
[ "nonn" ]
A101941
[ 0, 0, 0, 0, 0, 3, 0, 0, 0, 1, -1, 1, -1, 0, 0, 0, 0, 1, -1, 0, 0, 0, -1, 1, -1, 1, -1, 1, -1, 11, 0, 0, 0, 0, 0, 0, -3, 0, 0, 0, -1, 11, -1, 0, 0, 0, -1, 1, -1, 0, 0, 0, -3, 0, 0, 0, 0, 0, -1, 5, ...
[ "sign" ]
A166450
[ 1, 6, 3, 18, 9, 54, 27, 162, 81, 486, 243, 1458, 729, 4374, 2187, 13122, 6561, 39366, 19683, 118098, 59049, 354294, 177147, 1062882, 531441, 3188646, 1594323, 9565938, 4782969, 28697814, 14348907, 86093442, 43046721, 258280326 ]
[ "nonn", "easy" ]
A120334
[ 3, 5, 7, 11, 13, 17, 19, 23, 31, 43, 61, 67, 79, 89, 101, 107, 127, 167, 191, 199, 257, 313, 347, 521, 607, 701, 1021, 1279, 1709, 2203, 2281, 2617, 3217, 3539, 4093, 4099, 4253, 4423, 5807, 8191, 9689, 9941 ]
[ "nonn" ]
A155118
[ 0, 1, 1, 1, 2, 3, 3, 4, 6, 9, 5, 8, 12, 18, 27, 11, 16, 24, 36, 54, 81, 21, 32, 48, 72, 108, 162, 243, 43, 64, 96, 144, 216, 324, 486, 729, 85, 128, 192, 288, 432, 648, 972, 1458, 2187, 171, 256, 384, 576, 864, 1296,...
[ "nonn", "tabl", "easy" ]
A316658
[ 0, 0, 1, 0, -1, 1, 1, 2, 1, 0, 2, 2, 3, 2, 1, -1, -1, 0, -1, -2, -2, -2, -1, -2, -3, 4, 4, 5, 4, 3, 5, 5, 6, 5, 4, 6, 6, 7, 6, 5, 3, 3, 4, 3, 2, 2, 2, 3, 2, 1, 3, 3, 4, 3, 2, 4, 4, 5, 4, 3, 5, 5...
[ "sign", "look", "base" ]
A316542
[ 16, 64, 187, 568, 4219, 19819, 85583, 452386, 2248258, 10683960, 53021058, 262380806, 1279454090, 6288355637, 30965350526, 151903390611, 745956024380, 3666614206098, 18007858418196, 88444652958379, 434517915090590 ]
[ "nonn" ]
A173396
[ 2, 5, 23, 51, 443, 949, 4027, 8483, 142163, 296481, 1232113, 2552405, 21095279, 43490633, 178977107, 367649059, 12065310083, 24714021721, 101124870709, 206667899393, 1687804827349, 3442891889003, 14034579926477, 28583749273429 ]
[ "nonn" ]
A137776
[ 0, 0, 1, 1, 2, 2, 3, 4, 4, 8, 6, 16, 12, 32, 28, 64, 64, 128, 136, 256, 272, 512, 528, 1024, 1024, 2048, 2016, 4096, 4032, 8192, 8128, 16384, 16384, 32768, 32896, 65536, 65792, 131072, 131328, 262144, 262144, 524288, 523776, 10485...
[ "nonn", "easy" ]
A233992
[ 3496, 11622, 38220, 150572, 578992, 2642176, 11510748, 59677576, 286598096, 1625122820, 8327165492, 49678143548, 264612547304, 1617434567048, 8813023956528, 54391352548384, 300504986392076, 1859027129125504 ]
[ "nonn" ]
A080163
[ 1, 26, 1636, 191336, 35909776, 9877824416, 3744949458496, 1871860519454336, 1192747133878118700, 943718459840134900000, 9.077456442080333e+23, 1.0431824797020925e+27, 1.4116057147730244e+30 ]
[ "nonn" ]
A126801
[ 2, 3, 4, 3, 6, 5, 8, 3, 4, 3, 12, 5, 14, 3, 4, 3, 18, 5, 20, 3, 4, 3, 24, 5, 6, 3, 4, 3, 30, 7, 32, 3, 4, 3, 6, 5, 38, 3, 4, 3, 42, 5, 44, 3, 4, 3, 48, 5, 8, 3, 4, 3, 54, 5, 6, 3, 4, 3, 60, 7, 62,...
[ "nonn" ]
A001523
[ 1, 1, 2, 4, 8, 15, 27, 47, 79, 130, 209, 330, 512, 784, 1183, 1765, 2604, 3804, 5504, 7898, 11240, 15880, 22277, 31048, 43003, 59220, 81098, 110484, 149769, 202070, 271404, 362974, 483439, 641368, 847681, 1116325, 1464999, 1916184, 2498258,...
[ "nonn", "nice", "easy" ]
A031818
[ 3004, 3676, 3691, 4414, 5377, 5413, 5509, 5524, 5692, 5721, 5758, 6009, 6091, 6349, 6541, 6781, 6796, 6871, 6961, 7009, 7041, 7149, 7321, 7609, 7729, 7732, 7996, 8179, 8529, 8617, 8881, 8902, 8929, 8969, 9013, 9172, 9249, 9397, 9589, 9706...
[ "nonn" ]
A368209
[ 0, 0, 1, 2, 3, 6, 29, 604, 69724, 49836144, 250872492816, 10113420362487552, 3.6698770579225827e+21, 1.3317216838086531e+28, 5.3158054791000076e+35, 2.5462792713037938e+44 ]
[ "nonn" ]
A248823
[ 1, 1, 1, 2, 2, 6, 8, 10, 42, 64, 200, 432, 588, 1024, 3888, 6300, 21120, 33696, 52080, 114240, 328320, 816480, 3326400, 4435200, 6469632, 20616960, 57153600, 145411200, 258003900, 320973840, 791513856, 1634592960, 6403719168, 9967104000, 3493929600...
[ "nonn", "easy" ]
A160787
[ 21, 209, 938, 2833, 6771, 13881, 25544, 43393, 69313, 105441, 154166, 218129, 300223, 403593, 531636, 688001, 876589, 1101553, 1367298, 1678481, 2040011, 2457049, 2935008, 3479553, 4096601, 4792321, 5573134, 6445713, 7416983 ]
[ "nonn", "easy" ]
A246916
[ 1, 9, 12, 84, 18, 720, 24, 900, 156, 1080, 36, 70560, 42, 1440, 1440, 11160, 54, 98280, 60, 105840, 1920, 2160, 72, 10886400, 372, 2520, 2400, 141120, 90, 13063680, 96, 158760, 2880, 3240, 2880, 165110400, 114, 3600, 3360, 16329600, 126...
[ "nonn" ]
A162580
[ 1, 2, 4, 6, 16, 26, 44, 62, 240, 418, 756, 1094, 2544, 3994, 6556, 9118, 32352, 55586, 99492, 143398, 330000, 516602, 845900, 1175198, 3452112, 5729026, 9953556, 14178086, 31076592, 47975098, 77547580, 107120062, 298608832, 490097602 ]
[ "nonn" ]
A346489
[ 1, 2, 3, 4, 10, 19, 24, 46, 109, 430, 669, 3245, 6057, 7837, 33067, 77777, 476643, 601855, 3556550, 5216954, 15739663, 41146179, 189961757, 882206624, 3325059246, 15581005618, 23007498153, 37607875618 ]
[ "nonn", "base" ]
A290454
[ 1, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 3, 3, 1, 0, 1, 2, 2, 2, 1, 0, 1, 1, 2, 2, 1, 1, 0, 1, 0, 3, 0, 3, 0, 1, 0, 1, 3, 1, 3, 3, 1, 3, 1, 0, 1, 2, 0, 2, 2, 2, 0, 2, 1, 0, 1, 1, 0, 0, 2, 2, 0, 0, 1...
[ "nonn", "tabl" ]
A206305
[ 1, 2, 56, 4304, 647552, 161009408, 59798825984, 31018594543616, 21421107883900930, 19000925396453753000, 2.1053097631093132e+22, 2.849629190106482e+25, 4.626768703114377e+28, 8.875477420491623e+31, 1.9858817299626937e+35 ]
[ "nonn" ]
A192105
[ 7654350, 40209840, 156637140, 576841320, 1851589872, 5544758076, 14686598520, 35723706480, 75818872580, 144536922420, 242305860072, 370664737190, 506699655660, 643405035240, 746030515164, 812426918688, 833352979140, 795923308950, 741556189440, 644098507272, 547387431756, 44...
[ "nonn", "fini" ]
A379835
[ 1, 1, 2, 1, 3, 3, 2, 4, 5, 3, 6, 5, 3, 3, 6, 5, 7, 9, 6, 5, 9, 10, 9, 11, 6, 9, 7, 10, 15, 11, 10, 15, 13, 11, 11, 15, 15, 12, 15, 17, 15, 11, 14, 15, 20, 15, 18, 17, 13, 11, 22, 20, 23, 23, 19, 22, 22, ...
[ "nonn", "base" ]
A065519
[ 0, 0, 1, 2, -2, 3, 5, 0, 1, -5, 4, 6, 1, -7, 6, 8, -1, 2, 3, -9, 12, 5, 7, 1, 10, 2, -1, -15, 10, 6, 1, 2, -16, 17, 7, 2, -18, 19, 6, 0, 3, 4, -20, 25, 3, 4, 5, 6, 7, -1, 12, 8, 2, 11, 15, 2, -28, 29, ...
[ "sign" ]
A070442
[ 0, 1, 4, 9, 16, 5, 16, 9, 4, 1, 0, 1, 4, 9, 16, 5, 16, 9, 4, 1, 0, 1, 4, 9, 16, 5, 16, 9, 4, 1, 0, 1, 4, 9, 16, 5, 16, 9, 4, 1, 0, 1, 4, 9, 16, 5, 16, 9, 4, 1, 0, 1, 4, 9, 16, 5, 16, 9, 4, 1, 0, ...
[ "nonn", "easy" ]
A229027
[ 4, 9, 18, 25, 49, 50, 75, 98, 121, 147, 150, 169, 242, 245, 289, 294, 338, 361, 363, 490, 507, 529, 578, 605, 722, 726, 735, 841, 845, 847, 867, 961, 1014, 1058, 1083, 1183, 1210, 1369, 1445, 1470, 1587, 1681, 1682, 1690, 1694, ...
[ "nonn" ]
A230999
[ 1, 2, 3, 4, 5, 7, 8, 9, 10, 13, 14, 15, 16, 19, 20, 21, 24, 25, 26, 27, 30, 31, 32, 33, 35, 36, 37, 38, 41, 42, 43, 44, 47, 48, 49, 52, 53, 54, 55, 58, 59, 60, 61, 63, 64, 65, 66, 69, 70, 71, 72, 75, 76, 77, ...
[ "nonn", "easy" ]
A270281
[ 4, 0, 28, -20, 80, -60, 128, -108, 232, -212, 344, -316, 472, -412, 552, -492, 736, -708, 968, -940, 1224, -1164, 1432, -1348, 1672, -1612, 1944, -1844, 2152, -1980, 2224, -2048, 2524, -2468, 2984, -2956, 3496, -3436, 3960, -3876, 4456,...
[ "sign", "easy" ]
A108512
[ 0, 3, 2, 0, 2, 1, 1, 1, 0, 3, 0, 2, 0, 2, 3, 1, 1, 8, 2, 9, 2, 1, 0, 5, 3, 1, 0, 0, 1, 0, 0, 3, 1, 0, 0, 6, 3, 0, 5, 2 ]
[ "nonn", "more" ]
A122429
[ 13, 9833, 41647, 151607, 264757, 356123, 361223, 446863, 449093, 457813, 531383, 641057, 655927, 841697, 855947, 899263, 913687, 1052813, 1081757, 1379383, 1506493, 1575757, 1685087, 1821013, 1821377, 1981517, 2054233, 2142037 ]
[ "nonn" ]
A215316
[ 2, 3, 5, 19, 37, 53, 71, 73, 89, 107, 139, 157, 173, 191, 223, 241, 257, 277, 293, 311, 359, 379, 461, 463, 479, 547, 563, 599, 617, 631, 683, 701, 719, 733, 751, 769, 787, 821, 853, 887, 937, 971, 991, 1039, 1091, 1093, 110...
[ "nonn", "easy" ]
A191695
[ 5, 5, 6, 9, 14, 23, 37, 61, 101, 168, 278, 462, 769, 1280, 2131, 3550, 5913, 9853, 16418, 27359, 45594, 75985, 126636, 211055, 351751, 586244, 977065, 1628433, 2714045, 4523397, 7538982, 12564956, 20941578, 34902612, 58171000, 96951645, 1615860...
[ "nonn", "easy" ]
A105612
[ 0, 1, 1, 1, 2, 3, 3, 2, 3, 5, 5, 3, 6, 7, 5, 3, 8, 7, 9, 5, 7, 11, 11, 5, 10, 13, 10, 7, 14, 11, 15, 6, 11, 17, 11, 7, 18, 19, 13, 8, 20, 15, 21, 11, 11, 23, 23, 7, 21, 21, 17, 13, 26, 21, 17, 11, 19, 2...
[ "nonn" ]
A240205
[ 0, 1, 0, 0, 1, 0, 1, 0, 2, 1, 2, 0, 4, 0, 2, 7, 3, 0, 17, 0, 5, 26, 2, 0, 60, 1, 2, 61, 59, 0, 91, 0, 149, 119, 2, 34, 480, 0, 2, 215, 788, 0, 288, 0, 1147, 923, 2, 0, 2528, 1, 1585, 611, 3319, 0, 1150, 396...
[ "nonn", "easy" ]
A369541
[ 24, 120, 180, 840, 1260, 1680, 9240, 13860, 18480, 27720, 120120, 180180, 240240, 360360, 480480, 2042040, 3063060, 4084080, 6126120, 8168160, 38798760, 58198140, 77597520, 116396280, 155195040, 892371480, 1338557220, 1784742960, 2677114440, 3569485920, 53...
[ "nonn" ]
A127314
[ 3, 5, 7, 7, 1, 5, 2, 0, 6, 3, 9, 5, 7, 2, 9, 7, 2, 1, 8, 4, 0, 9, 3, 9, 1, 9, 6, 3, 5, 1, 1, 9, 9, 4, 8, 8, 0, 4, 0, 1, 7, 9, 6, 2, 5, 7, 7, 9, 3, 0, 7, 5, 9, 2, 3, 6, 8, 3, 5, 2, 7, 7, 5, 5...
[ "cons", "easy", "nonn" ]
A256443
[ 1, 2, 3, 4, 2, 3, 6, 3, 4, 3, 5, 4, 5, 2, 3, 5, 5, 6, 3, 4, 5, 1, 3, 4, 5, 3, 4, 7, 3, 5, 7, 4, 5, 7, 2, 3, 5, 7, 5, 6, 7, 3, 4, 5, 7, 1, 3, 4, 5, 7, 2, 3, 4, 5, 7, 4, 5, 6, 7, 3, 5, 7, 8, 1...
[ "nonn", "tabf" ]
A223242
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[ "nonn" ]
A150137
[ 1, 2, 6, 20, 73, 271, 1064, 4212, 17196, 70596, 296012, 1245082, 5318268, 22764797, 98594587, 427635358, 1872119304, 8204325414, 36227766180, 160091182728, 711920762932, 3167656255528, 14169825390905, 63412119597744, 285085092838761, 1282074973042071, 578879138421...
[ "nonn", "walk" ]
A219419
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[ "nonn" ]
A313085
[ 1, 4, 9, 14, 19, 22, 30, 31, 38, 41, 50, 50, 56, 62, 67, 73, 70, 82, 86, 90, 91, 100, 107, 107, 112, 117, 126, 128, 129, 135, 148, 144, 147, 159, 162, 164, 167, 176, 182, 186, 183, 194, 206, 199, 202, 216, 223, 217, 224,...
[ "nonn" ]
A193834
[ 5, 64, 152, 2344, 74128, 4727488, 605830476, 155327728048, 79651829978204, 81691885047878060, 167569176063020500000, 6.874498941005673e+23, 5.640526291619821e+27, 9.256138854416646e+31 ]
[ "nonn" ]
A283735
[ 1, 0, 0, 0, 1, 0, 2, 2, 1, 2, 2, 2, 2, 1, 1, 2, 1, 1, 2, 2, 0, 0, 1, 1, 1, 1, 2, 1, 0, 2, 0, 1, 2, 0, 1, 0, 2, 2, 1, 2, 0, 2, 1, 1, 0, 0, 1, 1, 1, 2, 1, 2, 0, 0, 3, 0, 1, 0, 2, 0, 0, 2, 0, 0...
[ "nonn", "base", "cons" ]
A192204
[ 1, 2, 13, 109, 1099, 12283, 147620, 1869346, 24633344, 334916467, 4669887745, 66481991644, 963096090267, 14160279233964, 210870471771803, 3175275874056722, 48281516978747390, 740504452581897100, 11444972742343813000 ]
[ "nonn" ]
A022554
[ 0, 1, 2, 3, 5, 7, 9, 11, 13, 16, 19, 22, 25, 28, 31, 34, 38, 42, 46, 50, 54, 58, 62, 66, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120, 125, 131, 137, 143, 149, 155, 161, 167, 173, 179, 185, 191, 197, 203, 210, 217...
[ "nonn", "easy" ]
A151055
[ 1, 3, 10, 37, 146, 596, 2488, 10577, 45621, 198971, 875546, 3881695, 17319136, 77692349, 350149137, 1584522530, 7196245139, 32786815893, 149806467269, 686239704863, 3150858847011, 14497664524101, 66834923897889, 308656720603898, 1427755641162334, 6614301325059226, ...
[ "nonn", "walk" ]
A039239
[ 0, 1, 2, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 29, 30, 31, 32, 33, 34, 35, 40, 51, 60, 61, 62, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 77, 78, 79, 80, 81, 82, 83, 84, 85, ...
[ "nonn", "base", "easy" ]
A317286
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[ "nonn" ]
A020767
[ 1, 1, 10, 110, 11000, 1111000, 122210000, 13565310000, 13565310000000, 13578875310000000, 13714664063100000000, 1.38655253677941e+22, 1.525207790457351e+25, 1.6792537772935435e+28, 1.8639716927958332e+31, 2.0708725506961708e+34 ]
[ "nonn", "base", "easy" ]
A318667
[ 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, -5, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 3, 1, 1, 1, 1, 31, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, -5, 1, 1, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 1, 1, 1, ...
[ "sign", "frac", "mult" ]
A030199
[ 1, -1, -1, 0, 0, 1, 0, 1, 0, 0, 0, 0, -1, 0, 0, -1, 0, 0, 0, 0, 0, 0, 1, -1, 1, 1, 1, 0, -1, 0, -1, 0, 0, 0, 0, 0, 0, 0, 1, 0, -1, 0, 0, 0, 0, -1, -1, 1, 1, -1, 0, 0, 0, -1, 0, 0, 0, 1, 2, 0, 0, ...
[ "sign", "mult" ]
A129592
[ 2, 7, 13, 43, 53, 59, 127, 241, 271, 317, 331, 349, 367, 439, 487, 491, 607, 659, 719, 733, 757, 773, 821, 857, 881, 929, 971, 1087, 1193, 1259, 1289, 1303, 1409, 1427, 1453, 1607, 1663, 1693, 1723, 1747, 1789, 1949, 2053, 2087, ...
[ "nonn" ]
A169916
[ 0, 2, 4, 6, 8, 0, 2, 4, 6, 8, 220, 242, 264, 286, 208, 220, 242, 264, 286, 208, 440, 462, 484, 406, 428, 440, 462, 484, 406, 428, 660, 682, 604, 626, 648, 660, 682, 604, 626, 648, 880, 802, 824, 846, 868, 880, 802, 824, ...
[ "nonn", "base" ]
A359080
[ 1, 3, 5, 7, 11, 13, 15, 17, 19, 23, 27, 29, 31, 37, 41, 43, 47, 51, 53, 59, 61, 63, 67, 71, 73, 79, 83, 85, 89, 95, 97, 101, 103, 107, 109, 111, 113, 119, 123, 125, 127, 131, 137, 139, 143, 149, 151, 157, 163, 167, 1...
[ "nonn", "base" ]
A181180
[ 1, 8, 3, 4, 0, 5, 7, 3, 7, 9, 1, 9, 8, 4, 8, 7, 4, 5, 3, 2, 3, 7, 8, 3, 6, 5, 6, 2, 2, 4, 2, 7, 7, 1, 2, 1, 1, 1, 5, 4, 3, 0, 3, 0, 7, 1, 4, 6, 8, 1, 7, 9, 7, 0, 5, 4, 8, 7, 3, 0, 9, 3, 1, 8...
[ "nonn", "cons" ]
A094570
[ 0, 1, 1, 1, 2, 1, 2, 2, 2, 2, 3, 3, 2, 3, 3, 5, 4, 3, 3, 4, 5, 8, 6, 4, 4, 4, 6, 8, 13, 9, 6, 5, 5, 6, 9, 13, 21, 14, 9, 7, 6, 7, 9, 14, 21, 34, 22, 14, 10, 8, 8, 10, 14, 22, 34, 55, 35, 22, 15, 11,...
[ "nonn", "tabl" ]
A037639
[ 2, 11, 45, 182, 731, 2925, 11702, 46811, 187245, 748982, 2995931, 11983725, 47934902, 191739611, 766958445, 3067833782, 12271335131, 49085340525, 196341362102, 785365448411, 3141461793645, 12565847174582, 50263388698331 ]
[ "nonn", "base" ]
A052402
[ 0, 0, 1, 1, 2, 3, 7, 20, 47, 132, 365, 1032, 3069, 8854, 26712, 78830 ]
[ "nonn", "nice" ]
A211963
[ 0, 0, 3, 0, 3, 12, 0, 0, 43, 37, 0, 0, 65, 499, 90, 0, 0, 67, 3146, 3304, 186, 0, 0, 67, 10112, 64705, 15021, 343, 0, 0, 0, 17947, 743866, 695587, 53038, 582, 0, 0, 0, 21062, 5225620, 20556897, 4904333, 156458, 927, 0, 0, ...
[ "nonn", "tabl" ]
A193345
[ 1, 1, 7, 8, 7, 0, 1, 9, 7, 2, 3, 0, 8, 5, 5, 1, 9, 6, 5, 4, 6, 3, 8, 8, 0, 5, 5, 0, 3, 2, 7, 9, 6, 8, 6, 7, 5, 0, 4, 9, 5, 0, 5, 9, 9, 0, 5, 2, 5, 3, 3, 6, 6, 3, 4, 8, 2, 7, 8, 0, 0, 9, 0, 9...
[ "nonn", "base", "easy" ]
A316440
[ 1, 1, 2, 2, 4, 2, 6, 2, 7, 5, 8, 2, 13, 2, 10, 10, 14, 2, 20, 2, 17, 15, 14, 2, 32, 3, 16, 22, 25, 2, 40, 2, 27, 30, 20, 4, 58, 2, 22, 40, 40, 2, 64, 2, 40, 53, 26, 2, 93, 3, 30, 64, 54, 2, 94, 4, 58, 7...
[ "nonn" ]
A242778
[ 6, 8, 10, 24, 12, 16, 14, 48, 16, 30, 18, 24, 18, 80, 20, 48, 22, 120, 24, 32, 24, 70, 26, 168, 28, 96, 30, 40, 30, 72, 30, 224, 32, 60, 32, 126, 34, 288, 36, 48, 36, 160, 38, 360, 40, 42, 40, 96, 40, 198, 42, 56, ...
[ "nonn" ]