id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A386744
[ 1, 1, 5, 4, 1, 3, 5, 4, 2, 9, 1, 3, 1, 1, 9, 2, 2, 1, 2, 7, 5, 3, 1, 3, 6, 4, 7, 6, 0, 8, 2, 6, 5, 3, 0, 6, 2, 0, 2, 1, 3, 7, 7, 0, 1, 9, 7, 6, 9, 1, 6, 6, 3, 1, 1, 6, 0, 1 ]
[ "nonn", "cons", "more" ]
A169612
[ 1, 2, 4, 5, 8, 9, 10, 13, 14, 23, 24, 25, 30, 31, 32, 33, 38, 39, 40, 41, 46, 47, 48, 49, 54, 55, 60, 65, 70, 71, 72, 89, 90, 91, 92, 93, 94, 95, 120, 129, 146, 163, 164, 165, 182, 247, 264, 297, 298, 347, 396, 445, 446, 495, 544, 545, 578, 595, 612, 629, 646, 647, 648 ]
[ "fini", "full", "nonn", "base" ]
A365516
[ 1, 2, 4, 10, 32, 112, 400, 1464, 5520, 21296, 83456, 331136, 1328320, 5379200, 21959936, 90271904, 373347840, 1552438016, 6486311680, 27217331456, 114649525760, 484640538112, 2055185596416, 8740711936000, 37273693649920, 159340373710848, 682708771254272, 2931290431277056 ]
[ "nonn" ]
A343581
[ 1, 0, 2, 6, 36, 240, 1200, 12600, 58800, 846720, 3810240, 69854400, 307359360, 6849722880, 29682132480, 779155977600, 3339239904000, 100919250432000, 428906814336000, 14668613050291200, 61934143990118400, 2364758225077248000, 9931984545324442000, 418798681661180600000 ]
[ "nonn" ]
A176023
[ 13, 169, 33124, 1109289636, 1230597389647535400, 1.5143699381375878e+36, 2.2933163095348415e+72 ]
[ "easy", "nonn" ]
A310133
[ 1, 3, 6, 7, 8, 15, 20, 23, 20, 21, 36, 33, 28, 33, 46, 49, 48, 41, 50, 69, 54, 53, 60, 75, 74, 69, 68, 81, 96, 79, 80, 85, 106, 97, 92, 97, 104, 123, 108, 105, 112, 135, 122, 123, 118, 123, 158, 133, 126, 141 ]
[ "nonn" ]
A246079
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20, 22, 24, 26, 28, 30, 33, 36, 39, 42, 45, 48, 52, 56, 60, 66, 72, 78, 84, 90, 99, 108, 117, 126, 135, 144, 156, 168, 180, 198, 216, 234, 252, 270, 297, 324, 351, 378, 405, 432, 468, 504, 540, 594, 648, 702, 756, 810, 891, 972, 1053, 1134, 1215, 1296, 1404 ]
[ "nonn", "easy" ]
A207733
[ 21, 441, 1113, 2809, 27931, 277729, 1029231, 3814209, 27996255, 205492225, 919461235, 4114067881, 26135084283, 166026096369, 818513711715, 4035297528025, 23843629466995, 140886430854481, 730455853771371 ]
[ "nonn" ]
A375681
[ 1, 0, 0, 18, 0, 180, 4320, 5040, 241920, 3900960, 19958400, 622702080, 9580032000, 112086374400, 3013462932480, 52540488000000, 977094287769600, 25683596370432000, 540291743902310400, 13061642656398336000, 360218657273739300000, 9.111103133582242e+21 ]
[ "nonn" ]
A106374
[ 3, 11, 15, 19, 23, 27, 35 ]
[ "nonn", "fini", "full" ]
A014628
[ 3, 8, 20, 45, 91, 168, 288, 465, 715, 1056, 1508, 2093, 2835, 3760, 4896, 6273, 7923, 9880, 12180, 14861, 17963, 21528, 25600, 30225, 35451, 41328, 47908, 55245, 63395, 72416, 82368, 93313, 105315, 118440, 132756, 148333, 165243, 183560 ]
[ "nonn", "easy" ]
A105258
[ 1, 1, 2, 1, 2, 2, 1, 3, 1, 2, 2, 1, 3, 2, 1, 3, 1, 3, 2, 1, 1, 2, 2, 1, 3, 2, 1, 3, 1, 3, 2, 1, 2, 1, 3, 1, 3, 2, 1, 1, 3, 2, 1, 2, 1, 1, 3, 2, 1, 2, 2, 1, 3, 2, 1, 3, 1, 3, 2, 1, 2, 1, 3, 1, 3, 2, 1, 1, 3, 2, 1, 2, 1, 1, 3, 2, 2, 1, 3, 1, 3, 2, 1, 1, 3, 2, 1, 2, 1, 1, 3, 2, 1, 3, 2, 1, 2, 1, 1, 3, 2, 2, 1, 1, 3 ]
[ "nonn", "tabf" ]
A119981
[ 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 0, 1, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 0 ]
[ "easy", "nonn" ]
A373495
[ 2, 9, 5, 7, 1, 7, 7, 9, 7, 9, 1, 3, 1, 3, 3, 7, 9, 1, 7, 1, 7, 9, 7, 9, 7, 1, 3, 3, 9, 3, 7, 1, 3, 9, 9, 1, 3, 3, 3, 7, 9, 1, 1, 7, 7, 9, 1, 7, 3, 9, 3, 9, 1, 1, 3, 3, 9, 1, 3, 1, 3, 7, 7, 1, 7, 7, 1, 3, 7, 9, 3, 9, 3, 7, 9, 7, 9, 7, 1, 9, 9, 1, 1, 7, 9, 7, 9, 7, 1, 3, 3, 9, 3, 1, 9, 7, 9, 1, 3, 1, 7, 3, 3, 9, 1 ]
[ "nonn" ]
A207977
[ 13, 53, 61, 37, 45, 213, 221, 197, 205, 245, 253, 229, 237, 149, 157, 133, 141 ]
[ "nonn" ]
A141719
[ 4, 8, 8, 12, 15, 12, 16, 24, 21, 16, 20, 35, 32, 27, 20, 24, 48, 45, 40, 33, 24, 28, 63, 60, 55, 48, 39, 28, 32, 80, 77, 72, 65, 56, 45, 32, 36, 99, 96, 91, 84, 75, 64, 51, 36, 40, 120, 117, 112, 105, 96, 85, 72, 57, 40, 44 ]
[ "nonn", "uned" ]
A076555
[ 2, 5, 7, 3, 13, 5, 19, 7, 5, 31, 11, 13, 43, 5, 7, 11, 61, 7, 23, 73, 5, 3, 17, 13, 11, 103, 7, 109, 37, 23, 43, 19, 139, 47, 151, 17, 53, 11, 13, 7, 181, 61, 193, 13, 199, 67, 71, 5, 229, 11, 47, 241, 3, 23, 37, 53, 271, 13, 31, 283, 19, 59, 103, 313, 7, 29, 37, 113, 349 ]
[ "easy", "nonn" ]
A222703
[ 1, 1, 1, 1, 1, 1, 4, 5, 5, 4, 5, 16, 9, 16, 5, 10, 29, 62, 62, 29, 10, 12, 78, 159, 359, 159, 78, 12, 34, 236, 955, 2002, 2002, 955, 236, 34, 43, 638, 2609, 12101, 11878, 12101, 2609, 638, 43, 101, 1515, 15700, 73901, 163123, 163123, 73901, 15700, 1515, 101, 127, 4345 ]
[ "nonn", "tabl" ]
A191574
[ 2, 8, 64, 1024, 31744, 1935544, 233799896, 55948528920, 26536519769600, 24832233133823360, 45900199968106890000, 1.675133509722919e+23, 1.2073754859636406e+27 ]
[ "nonn" ]
A305343
[ 5, 21, 28, 77, 199, 454, 1074, 2619, 6216, 14782, 35494, 84850, 202493, 484472, 1158594, 2768565, 6619260, 15826963, 37833884, 90447825, 216242881, 516964232, 1235890365, 2954669861, 7063719452, 16887142919, 40372113631, 96517561505 ]
[ "nonn" ]
A285349
[ 1, -2, 4, -4, 2, 2, -8, 12, -12, 6, 8, -24, 36, -36, 16, 20, -62, 92, -88, 40, 46, -144, 208, -196, 88, 102, -308, 440, -412, 180, 208, -624, 884, -816, 356, 404, -1206, 1692, -1552, 672, 760, -2244, 3128, -2852, 1224, 1378, -4048, 5612, -5084, 2174, 2428, -7104, 9796, -8836, 3760 ]
[ "sign" ]
A364716
[ 61, 193, 277, 361, 397, 421, 457, 613, 757, 997, 1213, 1237, 1453, 1657, 1867, 1873, 1933, 2137, 2347, 2593, 2797, 2917, 3013, 3183, 3217, 3361, 3427, 3481, 3517, 3697, 3721, 3805, 4057, 4083, 4177, 4261, 4603, 4621, 4717, 4771, 4813, 4957, 5029, 5041, 5101, 5107, 5223 ]
[ "nonn" ]
A287786
[ 1, 10, 11, 1110, 101, 111100, 1101, 11111010, 10111, 1111110010, 110011, 111111100010, 1000111, 11111111011010, 11101101, 1111111110001110, 101101001, 111111111101011100, 1100001111, 11111111111001000000, 10010011011, 1.1111111111101111e+21, 111111100001 ]
[ "nonn", "easy" ]
A114357
[ 17, 409, 5153, 25933, 32969, 138937, 329309, 539089, 759833, 1366921, 1460087, 2926739, 5145071, 5598793, 5835329, 6584717, 9877633, 10222169, 15918223, 17364481, 17865347, 20514577, 27913129, 47647993, 56946397, 71124649 ]
[ "easy", "nonn" ]
A121390
[ 2, 8607769, 25823309, 222281113118699, 5.740034091209257e+21, 1.2759011671332792e+36, 7.323716196358702e+57 ]
[ "nonn" ]
A013579
[ 0, 0, 1, 1, 0, 0, 3, 0, 18, 143 ]
[ "nonn", "more", "hard" ]
A123064
[ 0, 2, 4, 5, 7, 8, 10, 14, 16, 18, 19, 20, 25, 28, 32, 35, 36, 38, 40, 41, 45, 49, 50, 56, 59, 62, 63, 64, 70, 71, 72, 76, 80, 82, 90, 94, 95, 97, 98, 100, 101, 103, 107, 109, 112, 113, 118, 124, 125, 126, 128, 133, 134, 140, 142, 144, 152, 155, 157, 160, 162, 163, 164, 171, 175 ]
[ "nonn" ]
A067670
[ 2, 11, 19, 199, 2.9999e+22 ]
[ "hard", "nonn", "base" ]
A364521
[ 5, 2, 7, 6, 1, 2, 3, 4, 7, 2, 0, 1, 7, 4, 2, 0, 6, 0, 5, 1, 6, 9, 1, 5, 8, 5, 1, 3, 8, 0, 5, 1, 8, 7, 2, 1, 6, 9, 1, 6, 4, 1, 7, 6, 4, 1, 6, 1, 5, 2, 5, 4, 7, 3, 1, 6, 8, 8, 7, 3, 3, 2, 9, 0, 3, 3, 1, 0, 1, 3, 4, 2, 7, 7, 7, 4, 6, 6, 7, 5, 2, 4, 5, 7, 8, 0, 5, 2, 5, 8, 4, 7, 5, 0, 7, 8, 6, 1, 4, 4, 7 ]
[ "nonn", "cons" ]
A116498
[ 1, -1, 1, -2, 1, -2, 3, -3, 4, -5, 6, -7, 8, -9, 11, -13, 16, -18, 21, -24, 27, -32, 36, -41, 48, -54, 61, -70, 78, -88, 100, -112, 127, -143, 159, -179, 199, -222, 248, -276, 308, -342, 380, -421, 465, -516, 570, -629, 697, -767, 845, -932, 1022, -1124, 1236, -1355, 1488, -1631, 1785, -1954, 2136 ]
[ "sign" ]
A253253
[ 1, 23, 2, 3, 4, 67, 6, 89, 5, 337, 8, 1213, 9, 283, 379, 7, 859, 17, 10, 43, 1061, 13, 14, 25, 421, 37, 11, 41, 293, 433, 12, 53, 1667, 15, 16, 3637, 21, 349, 20, 449, 19, 4243, 24, 35, 2273, 1549, 1187, 373, 18, 5051, 28, 51, 2677, 1091, 463, 5657, 2879, 27 ]
[ "nonn", "base", "look" ]
A301994
[ 1, 2, 5, 15, 48, 155, 499, 1602, 5137, 16467, 52784, 169199, 542375, 1738618, 5573261, 17865479, 57269040, 183579891, 588478091, 1886407378, 6047009817, 19384109803, 62137109808, 199184819687, 638500768991, 2046758546378, 6561026627701 ]
[ "nonn" ]
A154646
[ 2, 3, 3, 5, 26, 5, 9, 153, 153, 9, 17, 796, 2262, 796, 17, 33, 3951, 25176, 25176, 3951, 33, 65, 19266, 243111, 524876, 243111, 19266, 65, 129, 93477, 2168235, 8760639, 8760639, 2168235, 93477, 129, 257, 453848, 18445820, 127880936, 235517318 ]
[ "nonn", "tabl", "easy" ]
A028540
[ 1, 0, 0, 7385, 28315, 427987, 1398635, 10063590, 30106965, 148903370, 415546516, 1630361950, 4294071285, 14375319490, 36019030960, 107362236457, 257518347380, 702230132030, 1620548828150, 4117804435185, 9180947306314, 22023446814405, 47606945661555 ]
[ "nonn", "easy" ]
A237107
[ 1324297, 685334343, 293281801479, 147635666660707, 72365031298763070, 36100867652742246000, 1.7966786586499994e+22, 8.960557194571638e+24, 4.4682580798078984e+27, 2.228747388124935e+30 ]
[ "nonn" ]
A047890
[ 1, 1, 2, 6, 24, 120, 719, 5003, 39429, 344837, 3291590, 33835114, 370531683, 4285711539, 51990339068, 657723056000, 8636422912277, 117241501095189, 1639974912709122, 23570308719710840, 347217077020664900, 5231433025400050000, 80466744544235320000 ]
[ "nonn", "easy" ]
A008426
[ 1, 0, 20, 0, 180, 1024, 960, 0, 3380, 10240, 8424, 0, 16320, 46080, 28800, 0, 52020, 133120, 88660, 0, 129064, 307200, 175680, 0, 262080, 626688, 386920, 0, 489600, 1131520, 600960, 0, 840500 ]
[ "nonn", "easy" ]
A185068
[ 0, 2, 2, 3, 4, 4, 1, 10, 5, 2, 2, 2, 20, 1, 1, 2, 1, 3, 2, 1, 3, 2, 2, 1, 26, 2, 3, 9, 2, 5, 2, 5, 1, 2, 3, 1, 1, 1, 1, 2, 1, 7, 4, 2, 1, 1, 1, 1, 2, 1, 5, 17, 9, 1, 31, 1, 4, 5, 5, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 6, 1, 10, 1, 3, 1, 4, 1, 1, 6, 5, 3, 2, 4, 1, 26, 1, 1, 1, 2, 3, 1, 1, 1, 1 ]
[ "nonn", "cofr" ]
A211484
[ 1, 6, 10, 14, 15, 21, 22, 26, 33, 34, 35, 38, 39, 46, 48, 51, 55, 57, 58, 62, 65, 69, 74, 77, 80, 82, 85, 86, 87, 91, 93, 94, 95, 106, 111, 112, 115, 118, 119, 122, 123, 129, 133, 134, 141, 142, 143, 145, 146, 155, 158, 159, 161, 162, 166, 176, 177, 178, 183 ]
[ "nonn", "easy" ]
A143524
[ 3, 1, 5, 7, 1, 8, 4, 5, 2, 0, 5, 3, 8, 9, 0, 0, 7, 6, 8, 5, 1, 0, 8, 5, 2, 5, 1, 4, 7, 3, 7, 0, 6, 5, 7, 1, 9, 9, 0, 5, 9, 2, 6, 8, 7, 6, 7, 8, 7, 2, 4, 3, 9, 2, 6, 1, 3, 7, 0, 3, 0, 2, 0, 9, 5, 9, 9, 4, 3, 2, 1, 5, 8, 8, 0, 2, 9, 6, 4, 6, 1, 2, 2, 2, 8, 0, 4, 4, 3, 1, 8, 5, 7, 5, 0, 0, 0, 9, 8, 4, 6, 3, 0, 1 ]
[ "nonn", "cons" ]
A171410
[ 7, 151, 10501, 1005001, 100050001, 10000500001, 1000005000001, 100000050000001, 10000000500000000, 1000000005000000000, 100000000050000000000, 1.00000000005e+22 ]
[ "easy", "nonn" ]
A317893
[ 0, 5, 59, 549, 6193, 67792, 741031, 8119416, 88900423, 973425343, 10659656523, 116727563443, 1278205487608, 13996816969414, 153270295230335, 1678365696618678, 18378717159170456, 201253665901097630 ]
[ "nonn" ]
A149612
[ 1, 1, 5, 15, 63, 239, 1029, 4329, 18875, 83179, 370817, 1671025, 7590621, 34695117, 159768149, 738571111, 3433727997, 16020382559, 75032012255, 352609880571, 1661686878675, 7853389129735, 37203995334131, 176649606856533, 840526630320253, 4006789907386567, 19135191510894636, 91531197790744910 ]
[ "nonn", "walk" ]
A165925
[ 8, 8, 8, 8, 8, 12, 8, 12, 8, 12, 12, 8, 12, 8, 12, 18, 8, 12, 18, 8, 12, 20, 8, 18, 20, 8, 18, 20, 8, 12, 18, 20, 8, 18, 20, 24, 8, 12, 18, 20, 24, 12, 18, 20, 24, 27, 8, 12, 18, 27, 8, 12, 18, 20, 27, 28, 12, 24, 27, 8, 12, 18, 20, 24, 27, 28, 8, 18, 20, 24, 28, 32, 12, 20, 24, 27, 28 ]
[ "nonn", "tabf" ]
A054615
[ 0, 8, 72, 528, 4176, 32800, 262800, 2097200, 16781472, 134218800, 1073774880, 8589934672, 68719748256, 549755813984, 4398048608688, 35184372156480, 281474993496384, 2251799813685376, 18014398644225456, 144115188075856000 ]
[ "nonn" ]
A063187
[ 1, 5, 7, 12, 800, 1502, 3021, 5079, 6325, 17537, 50021, 158855, 826545, 5023575, 5097327, 6369490, 17535161, 19462254, 22535278, 24898987, 55666978, 111142756, 305716101, 2653533055, 3591521863, 4889613852, 10577043282 ]
[ "nonn", "easy" ]
A099340
[ 0, 4, 53, 585, 6274, 62515, 625369, 6251231, 62504587, 625010556, 6249958503, 62499878794 ]
[ "base", "nonn", "more" ]
A197699
[ 3, 4, 3, 6, 5, 9, 2, 2, 5, 7, 6, 4, 7, 9, 3, 5, 8, 5, 8, 8, 3, 1, 8, 6, 3, 7, 4, 8, 9, 3, 5, 7, 2, 7, 9, 1, 8, 3, 2, 7, 8, 4, 6, 7, 7, 6, 5, 0, 2, 2, 4, 8, 1, 6, 7, 3, 0, 3, 6, 1, 0, 1, 4, 6, 5, 3, 9, 6, 5, 5, 4, 2, 7, 9, 7, 9, 3, 0, 7, 3, 7, 0, 5, 9, 0, 8, 8, 7, 0, 3, 4, 1, 7, 9, 0, 1, 5, 5, 4 ]
[ "nonn", "cons" ]
A084699
[ 12, 30, 56, 424, 992, 16256, 58288, 119984, 356992, 1194649, 9973504, 12327121, 13141696, 22891184, 67100672, 233850649 ]
[ "nonn", "more" ]
A073109
[ 0, 0, -7, -35, 295, 2065, -42980, -42980, 1426670, 15693370, -774856236, -10073131068, 692669409432, 692669409432, -63315621131763, -1076365559239971, 126262920264259780, 2398995485020935700, -351338708777824400000, -351338708777824400000 ]
[ "easy", "sign" ]
A227747
[ 4, 13, 40, 129, 409, 1300, 4137, 13152, 41825, 133009, 422964, 1345045, 4277288, 13601889, 43254441, 137550436, 437414545, 1390991616, 4423395649, 14066532769, 44732002468, 142249129309, 452356561000, 1438507633089, 4574498058553 ]
[ "nonn" ]
A385553
[ 1, 6, 12, 36, 72, 72, 72, 72, 144, 432, 432, 432, 432, 432, 432, 432, 864, 864, 864, 864, 864, 864, 864, 864, 864, 864, 864, 2592, 2592, 2592, 2592, 2592, 5184, 5184, 5184, 5184, 5184, 5184, 5184, 5184, 5184, 5184, 5184, 5184, 5184, 5184, 5184, 5184, 5184, 5184, 5184, 5184, 5184 ]
[ "nonn", "easy", "changed" ]
A009309
[ 0, 1, -2, 8, -43, 299, -2566, 26200, -310458, 4190709, -63507976, 1067945504, -19737313696, 397714143007, -8678720911680, 203901057411888, -5131882643803216, 137757901532413680, -3928752297641274000 ]
[ "sign", "easy" ]
A179331
[ 1, 3, 21, 234, 3540, 66564, 1469412, 36584784, 998692416, 29407250880, 934026603840, 32655607021440, 1292780225168640, 57672298842359040, 2712127097197728000, 122155073614867510000, 5.128063415272021e+21 ]
[ "nonn" ]
A074466
[ 1, 1, 1, 1, 1, 24, 1, 1, 1, 20, 1, 8, 1, 8, 15, 1, 1, 3, 1, 4, 1, 8, 1, 24, 1, 4, 1, 16, 1, 1800, 1, 1, 3, 4, 25, 1, 1, 8, 1, 4, 1, 24, 1, 8, 3, 8, 1, 8, 1, 5, 9, 4, 1, 12, 1, 16, 1, 4, 1, 480, 1, 8, 1, 1, 65, 72, 1, 4, 3, 200, 1, 3, 1, 4, 5, 8, 1, 24, 1, 4, 1, 4, 1, 64, 5, 8, 3, 88, 1, 180, 7, 16, 1 ]
[ "nonn" ]
A013993
[ 1, 1, 16, 335, 9754, 323632, 11171466, 389866263, 13662905466, 479251547011, 16821606120516, 590415835527858, 20726430358013660, 727543012137899000, 25540208938124630000, 896540705406585900000 ]
[ "nonn" ]
A035884
[ 1, 0, 512, 0, 44032, 0, 1549824, 0, 30349312, 524288, 391784960, 26738688, 3702064128, 508035072, 27315850752, 5588385792, 164415418368, 42844291072, 834237682176, 253170810880, 3662806408192, 1226904698880, 14215186707968, 5082890895360, 49621579941888 ]
[ "nonn", "easy" ]
A335870
[ 1, 3, 3, 6, 3, 3, 6, 15, 3, 18, 6, 12, 9, 9, 15, 15, 3, 12, 18, 18, 6, 6, 15, 15, 9, 21, 9, 111, 18, 18, 18, 105, 3, 24, 12, 12, 21, 21, 21, 33, 6, 108, 6, 27, 15, 15, 15, 102, 9, 24, 24, 24, 9, 9, 111, 111, 18, 30, 18, 30, 18, 18, 105, 105, 6, 27, 27, 27, 12 ]
[ "nonn" ]
A276533
[ 5, 2, 19, 127, 17, 67, 163, 41, 89, 101, 131, 313, 257, 211, 227, 461, 241, 401, 613, 337, 433, 353, 577, 467, 863, 887, 617, 787, 601, 569, 761, 641, 823, 673, 857, 1217, 881, 1091, 1289, 977, 1427, 1097, 1801, 929, 1153, 953, 1321, 1049, 1747, 1409 ]
[ "nonn" ]
A161621
[ 1, 1, 2, 3, 1, 4, 3, 4, 3, 5, 4, 1, 5, 2, 6, 7, 5, 1, 6, 1, 1, 7, 2, 9, 8, 7, 8, 9, 1, 4, 10, 9, 10, 9, 10, 1, 3, 12, 11, 12, 11, 3, 12, 11, 13, 10, 13, 3, 10, 11, 15, 4, 12, 13, 11, 12, 17, 13, 1, 16, 13, 17, 15, 7, 16, 1, 15, 17, 13, 7, 1, 15, 1, 17, 9, 11, 7, 18, 23, 13, 20, 19, 20, 17, 16 ]
[ "nonn", "frac" ]
A229382
[ 3987, 4365, 4472 ]
[ "nonn", "fini", "full" ]
A337491
[ 8, 11, 13, 16, 22, 26, 28, 29, 31, 35, 37, 38, 41, 43, 44, 50, 53, 56, 59, 64, 65, 68, 70, 73, 74, 76, 80, 85, 86, 88, 91, 97, 98, 107, 109, 112, 113, 116, 118, 121, 122, 125, 127, 133, 134, 136, 137, 139, 142, 145, 146, 149, 151, 152, 155, 160, 161, 167, 170 ]
[ "nonn" ]
A206954
[ 191, 36481, 4107593, 449797912, 50967712088, 5791955969105, 656572043220119, 74406813170700260, 8434111346519120000, 956049555928840300000, 1.0837055002043425e+23, 1.2284018358115974e+25 ]
[ "nonn" ]
A009765
[ 1, 5, 101, 4689, 381769, 47849053, 8532452397, 2051184222377, 639121206054545, 250473754883360200, 120568689462321170000, 6.992668020879153e+22, 4.8091629862193465e+25 ]
[ "nonn" ]
A342015
[ 0, 1, 1, 5, 6, 3, 1, 7, 8, 1, 39, 33, 10, 45, 55, 35, 15, 255, 75, 25, 350, 325, 300, 1725, 500, 375, 250, 2375, 2625, 10875, 1, 9, 10, 41, 51, 39, 12, 59, 71, 37, 3, 321, 95, 15, 460, 395, 330, 2235, 650, 425, 200, 3025, 3225, 14325, 4125, 3875, 3625, 20375, 24000, 8625, 14, 77, 91, 35, 420, 399, 119, 483, 602, 469 ]
[ "nonn" ]
A182927
[ 1, 0, 3, -8, 25, -99, 721, -5704, 40881, -340325, 3628801, -41245511, 479001601, -6129725315, 87212177053, -1317906346184, 20922789888001, -354320889234597, 6402373705728001, -121882630320799630, 2432928081076384300, -51041048673495240000 ]
[ "sign" ]
A144443
[ 1, 1, 1, 1, 20, 1, 1, 159, 159, 1, 1, 1138, 4254, 1138, 1, 1, 7997, 77878, 77878, 7997, 1, 1, 56016, 1219167, 2984888, 1219167, 56016, 1, 1, 392155, 17633649, 87659315, 87659315, 17633649, 392155, 1, 1, 2745134, 244083268, 2219485106, 4400875078, 2219485106, 244083268, 2745134, 1 ]
[ "nonn", "tabl" ]
A358678
[ 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 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, 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, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0 ]
[ "nonn" ]
A013760
[ 17, 83521, 410338673, 2015993900449, 9904578032905936, 48661191875666870000, 2.3907243568515132e+23, 1.1745628765211484e+27, 5.770627412348402e+30, 2.83510924768677e+34, 1.39288917338851e+38, 6.84326450885775e+41 ]
[ "nonn", "easy", "changed" ]
A296340
[ 0, 2, 1, 4, 6, 8, 7, 9, 3, 12, 14, 16, 5, 17, 11, 18, 10, 24, 23, 25, 27, 26, 30, 29, 13, 32, 34, 31, 35, 38, 15, 39, 40, 44, 20, 45, 37, 49, 48, 51, 52, 53, 55, 19, 22, 21, 61, 59, 60, 62, 56, 65, 68, 58, 69, 71, 70, 72, 74, 28, 79, 77, 81, 78, 83, 80, 86, 88 ]
[ "nonn" ]
A255060
[ 1, 4, 7, 8, 9, 12, 13, 16, 17, 18, 21, 22, 27, 28, 29, 32, 33, 34, 37, 38, 43, 45, 46, 47, 49, 50, 51, 56, 57, 58, 61, 62, 63, 66, 67, 72, 74, 75, 76, 78, 80, 82, 84, 85, 86, 87, 89, 90, 91, 96, 98, 99, 100, 102, 103, 104, 109, 110, 111, 114, 115, 116, 119, 120, 125, 127, 128, 129, 131, 133, 135, 137, 138, 139, 140, 142, 144 ]
[ "nonn" ]
A026460
[ 1, 3, 4, 5, 6, 8, 9, 11, 12, 15, 17, 19, 20, 21, 24, 26, 27, 29, 32, 33, 35, 36, 37, 39, 40, 41, 44, 45, 47, 48, 50, 51, 54, 56, 57, 59, 60, 63, 65, 67, 68, 69, 71, 72, 75, 77, 80, 81, 84, 87, 89, 90, 91, 92, 95, 96, 99, 101, 104, 105 ]
[ "nonn" ]
A016152
[ 0, 1, 12, 112, 960, 7936, 64512, 520192, 4177920, 33488896, 268173312, 2146435072, 17175674880, 137422176256, 1099444518912, 8795824586752, 70367670435840, 562945658454016, 4503582447501312, 36028728299487230 ]
[ "nonn", "easy" ]
A169443
[ 1, 46, 2070, 93150, 4191750, 188628750, 8488293750, 381973218750, 17188794843750, 773495767968750, 34807309558593750, 1566328930136718800, 70484801856152350000, 3.1718160835268554e+21, 1.4273172375870849e+23 ]
[ "nonn" ]
A051992
[ 85, 165, 205, 221, 285, 357, 365, 429, 533, 629, 645, 741, 957, 965, 1085, 1205, 1245, 1365, 1469, 1517, 1533, 1685, 1853, 1965, 2013, 2037, 2045, 2085, 2373, 2397, 2405, 2613, 2805, 2813, 3005, 3045, 3237, 3485, 3885, 3965, 4245, 4277 ]
[ "nonn", "fini", "full" ]
A201810
[ 1, 15, 43, 1471, 7071, 207621, 1355145, 33222463, 266948431, 5714583505, 53305896645, 1032485634181, 10748736159253, 193347106894215, 2184638624782083, 37202261536824060, 447056372628222460 ]
[ "nonn" ]
A146359
[ 179, 251, 307, 347, 467, 587, 683, 1987, 5099, 5683, 7883, 8059, 8707, 12227, 14867, 15083, 15227, 22283, 34883, 40627, 42787, 47819, 50147, 51683, 68147, 73547, 78467, 84523, 84979, 89051, 95219, 104947, 106451, 107699, 132707, 134291, 142811, 149939, 164051 ]
[ "nonn" ]
A309253
[ 1, 6, 30, 12, 60, 84, 1140, 120, 168, 2340, 1848, 360, 2184, 1080, 4368, 840, 10440, 1680, 7920, 2520, 6552, 3360, 7560, 5040, 13104, 27720, 73440, 36960, 21840, 15120, 72072, 10080, 95760, 26208, 63840, 20160, 146160, 144144, 87360, 174720, 1071360, 166320 ]
[ "nonn" ]
A350899
[ 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 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, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 15, 16, 16, 17, 17, 18, 18, 19, 20, 21, 22, 24, 25, 27, 29, 31, 33, 36, 38, 41, 44, 47 ]
[ "nonn" ]
A198769
[ 2, 11, 56, 281, 1406, 7031, 35156, 175781, 878906, 4394531, 21972656, 109863281, 549316406, 2746582031, 13732910156, 68664550781, 343322753906, 1716613769531, 8583068847656, 42915344238281, 214576721191406, 1072883605957031, 5364418029785156, 26822090148925780 ]
[ "nonn", "easy" ]
A035459
[ 0, 0, 1, 1, 0, 1, 1, 1, 1, 1, 2, 3, 1, 2, 4, 3, 2, 4, 5, 5, 4, 6, 8, 8, 6, 9, 12, 11, 9, 14, 17, 15, 15, 20, 23, 23, 21, 28, 34, 31, 30, 41, 45, 43, 44, 55, 62, 60, 60, 76, 84, 80, 83, 103, 112, 108, 114, 138, 148, 146, 153, 182, 197, 192, 203, 243, 256, 252, 272, 315, 333 ]
[ "nonn" ]
A073974
[ 0, 1, 9, 54, 210, 1008, 6300, 40824, 262440, 1679616, 10478160, 62868960, 369476640, 2176782336, 12958657344, 77751944064, 468205557120, 2820249944064, 16957996040448, 101758315958784, 609954817881600, 3656158440062976, 21926486787222530, 131558920723335170 ]
[ "easy", "nonn" ]
A134928
[ 4, 6, 8, 10, 12, 14, 16, 18, 20, 28, 30, 32, 40, 42, 44, 58, 60, 62, 70, 72, 74, 100, 102, 104, 106, 108, 110, 136, 138, 140, 148, 150, 152, 178, 180, 182, 190, 192, 194, 196, 198, 200, 226, 228, 230, 238, 240, 242, 268, 270, 272, 280, 282, 284 ]
[ "easy", "nonn" ]
A023788
[ 0, 1, 2, 3, 4, 5, 6, 12, 13, 18, 19, 20, 24, 25, 26, 27, 30, 31, 32, 33, 34, 78, 114, 120, 121, 150, 156, 157, 162, 163, 164, 186, 192, 193, 198, 199, 200, 204, 205, 206, 207, 726, 942, 978, 984, 985, 1158, 1194, 1200, 1201, 1230, 1236, 1237, 1242, 1243, 1244, 5910, 7206, 7422, 7458, 7464, 7465, 44790 ]
[ "nonn", "base", "fini", "full", "easy" ]
A097123
[ 1, 1, 1, 5, 17, 41, 97, 253, 673, 1745, 4481, 11573, 30001, 77689, 200929, 519725, 1344833, 3479969, 9004033, 23296357, 60276817, 155961545, 403535969, 1044107357, 2701521889, 6989923441, 18085741441, 46795063445, 121077583217 ]
[ "easy", "nonn" ]
A335167
[ 1, 8, 13, 14, 10, 1, 8, 13, 14, 10, 1, 8, 13, 14, 10, 1, 8, 13, 14, 10, 1, 8, 13, 14, 10, 1, 8, 13, 14, 10, 1, 8, 13, 14, 10, 1, 8, 13, 14, 10, 1, 8, 13, 14, 10, 1, 8, 13, 14, 10, 1, 8, 13, 14, 10, 1, 8, 13, 14, 10, 1, 8, 13, 14, 10, 1, 8, 13, 14, 10, 1, 8, 13 ]
[ "nonn", "easy", "changed" ]
A266186
[ 1, 2, 4, 7, 12, 16, 25, 42, 50, 82, 104, 116, 201, 227, 243, 455, 477, 517, 1035, 1093, 1155, 1217, 2599, 2695, 4377, 4491, 4773, 4947, 5137, 13409, 13537, 14125, 14299, 14631, 15123, 34005, 34447, 34781, 36017, 36867, 37289, 37913, 155106, 155700, 157254 ]
[ "nonn", "base" ]
A323079
[ 1, 2, 3, 4, 3, 5, 3, 6, 7, 8, 3, 7, 3, 9, 10, 11, 3, 12, 3, 10, 13, 14, 3, 15, 16, 17, 18, 13, 3, 19, 3, 20, 21, 22, 23, 18, 3, 24, 25, 16, 3, 26, 3, 21, 27, 28, 3, 29, 30, 31, 32, 25, 3, 33, 34, 23, 35, 36, 3, 27, 3, 37, 30, 38, 39, 40, 3, 32, 41, 42, 3, 43, 3, 44, 45, 35, 46, 47, 3, 48, 49, 50, 3, 30, 51, 52, 53, 34, 3, 54, 55, 41, 56, 57, 58, 59, 3, 60, 46, 45, 3, 61, 3, 39 ]
[ "nonn" ]
A312754
[ 1, 4, 8, 16, 14, 24, 26, 34, 34, 40, 52, 44, 56, 58, 66, 68, 72, 76, 86, 86, 90, 94, 106, 100, 112, 110, 126, 120, 130, 126, 144, 142, 142, 148, 168, 150, 168, 164, 184, 172, 186, 178, 206, 192, 198, 204, 222, 206, 222, 218 ]
[ "nonn" ]
A323157
[ 1, 2, 2, 3, 2, 4, 2, 5, 2, 2, 2, 6, 2, 7, 2, 5, 2, 8, 2, 9, 2, 2, 2, 10, 2, 2, 2, 11, 2, 12, 2, 13, 2, 2, 2, 14, 2, 15, 2, 16, 2, 17, 2, 18, 2, 2, 2, 19, 2, 2, 2, 3, 2, 20, 2, 21, 2, 2, 2, 22, 2, 23, 2, 13, 2, 4, 2, 24, 2, 7, 2, 25, 2, 26, 2, 27, 2, 4, 2, 28, 2, 2, 2, 29, 2, 2, 2, 30, 2, 31, 2, 3, 2, 2, 2, 32, 2, 33, 2, 9, 2, 34, 2, 35, 2 ]
[ "nonn" ]
A168263
[ 1, 2, 4, 6, 12, 24, 60, 120, 180, 840, 1260, 1680, 27720 ]
[ "fini", "full", "nonn" ]
A006652
[ 1, 2, 5, 11, 27, 62, 152, 373 ]
[ "nonn" ]
A119966
[ 1, 2, 6, 28, 220, 2565, 45846, 1268622, 55336336, 3876385680, 443603651136, 84205632289664 ]
[ "nonn" ]
A041627
[ 1, 4, 5, 9, 77, 86, 163, 738, 26731, 107662, 134393, 242055, 2070833, 2312888, 4383721, 19847772, 718903513, 2895461824, 3614365337, 6509827161, 55692982625, 62202809786, 117895792411, 533785979430, 19334191051891, 77870550186994, 97204741238885 ]
[ "nonn", "frac", "easy" ]
A157363
[ 672, 1358, 2044, 2730, 3416, 4102, 4788, 5474, 6160, 6846, 7532, 8218, 8904, 9590, 10276, 10962, 11648, 12334, 13020, 13706, 14392, 15078, 15764, 16450, 17136, 17822, 18508, 19194, 19880, 20566, 21252, 21938, 22624, 23310, 23996, 24682 ]
[ "nonn", "easy" ]
A002233
[ 1, 2, 2, 3, 2, 2, 3, 2, 5, 2, 3, 2, 7, 3, 5, 2, 2, 2, 2, 7, 5, 3, 2, 3, 5, 2, 5, 2, 11, 3, 3, 2, 3, 2, 2, 7, 5, 2, 5, 2, 2, 2, 19, 5, 2, 3, 2, 3, 2, 7, 3, 7, 7, 11, 3, 5, 2, 43, 5, 3, 3, 2, 5, 17, 17, 2, 3, 19, 2, 2, 3, 7, 11, 2, 2, 5, 2, 5, 3, 29, 2, 2, 7, 5, 17, 2, 3, 13, 2, 3, 2, 13, 3, 2, 7, 5, 2, 3, 2, 2, 2 ]
[ "nonn", "nice", "easy" ]
A030363
[ 1, 2, 1, 0, 1, 2, 2, 2, 1, 1, 1, 2, 1, 0, 1, 0, 2, 1, 2, 0, 0, 1, 1, 0, 0, 2, 2, 1, 2, 1, 0, 0, 2, 2, 1, 2, 2, 1, 1, 1, 2, 2, 2, 2, 1, 1, 1, 2, 1, 1, 1, 0, 0, 1, 2, 0, 2, 0, 1, 2, 0, 1, 1, 1, 0, 1, 1, 2, 2, 0, 1, 1, 2, 2, 0, 1, 2, 1, 2, 1, 0, 0, 0, 2, 1, 1, 2, 0, 1, 2 ]
[ "nonn", "base" ]
A123874
[ 6, 6, 26, 126, 62501, 625000001, 625000000000000000, 6.25e+35, 6.25e+71 ]
[ "nonn", "base" ]
A272700
[ 1, 6, 18, 43, 71, 127, 183, 296, 356, 476, 596, 836, 956, 1196, 1436, 1917, 2041, 2289, 2537, 3033, 3281, 3777, 4273, 5265, 5513, 6009, 6505, 7497, 7993, 8985, 9977, 11962, 12214, 12718, 13222, 14230, 14734, 15742, 16750, 18766, 19270, 20278, 21286, 23302 ]
[ "nonn", "easy" ]
A301290
[ 1, 5, 10, 16, 28, 42, 57, 75, 96, 122, 150, 176, 207, 245, 282, 320, 364, 410, 457, 507, 560, 618, 678, 736, 799, 869, 938, 1008, 1084, 1162, 1241, 1323, 1408, 1498, 1590, 1680, 1775, 1877, 1978, 2080, 2188, 2298, 2409, 2523, 2640, 2762, 2886, 3008, 3135, 3269, 3402, 3536 ]
[ "nonn", "easy" ]