id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A322636
[ 0, 1, 7, 8, 18, 25, 26, 34, 52, 55, 59, 60, 81, 89, 107, 112, 114, 115, 136, 148, 170, 188, 189, 193, 195, 196, 235, 248, 260, 282, 286, 300, 307, 308, 337, 341, 342, 396, 403, 424, 430, 448, 449, 455, 456, 469, 521, 530, ...
[ "nonn" ]
A385505
[ 9, 0, 4, 4, 1, 7, 2, 2, 2, 6, 8, 3, 2, 5, 1, 0, 0, 6, 3, 1, 5, 7, 5, 7, 8, 2, 6, 7, 7, 9, 7, 0, 0, 7, 8, 4, 5, 9, 2, 2, 5, 8, 6, 0, 5, 2, 4, 4, 9, 1, 1, 1, 8, 1, 4, 0, 6, 1, 7, 8, 3, 2, 4, 1...
[ "nonn", "cons", "easy" ]
A051754
[ 2, 2, 4, 4, 8, 8, 10, 12, 12, 14, 16, 16, 18, 20, 20, 22, 24, 24, 26, 28, 28, 30, 32, 32, 34, 36, 36, 38, 40, 40, 42, 44, 44, 46, 48, 48, 50, 52, 52, 54, 56, 56, 58, 60, 60, 62, 64, 64, 66, 68, 68, 70, 72, 72, ...
[ "nonn", "nice", "more" ]
A049294
[ 1, 13, 97, 625, 3841, 23233, 139777, 839425, 5038081, 30231553, 181395457, 1088385025, 6530334721, 39182057473, 235092443137, 1410554855425, 8463329525761, 50779977940993, 304679869218817, 1828079218458625 ]
[ "easy", "nice", "nonn" ]
A050847
[ 226, 3594, 59770, 240802 ]
[ "hard", "nonn" ]
A291116
[ 0, 0, 0, 0, 0, 0, 0, 504, 32256, 1460592, 59814720, 2403157680, 98055619200, 4129943329512, 180976836968928, 8281570545448200, 396324506640142100, 19840151844921504000, 1.038497761573247e+21, 5.679071386671234e+22, 3.24126400435276e+24 ]
[ "nonn" ]
A156477
[ 4, 84, 2772, 508190, 123856526, 64461381670, 82168021684448, 394312187045210700 ]
[ "nonn" ]
A207447
[ 35, 1225, 14743, 165626, 2078416, 24609889, 284247216, 3316383098, 38630942068, 448234580146, 5204017590681, 60440346257235, 701591767463860, 8143643192312255, 94537663920104480, 1097406693263337000 ]
[ "nonn" ]
A115263
[ 1, 1, 1, 2, 2, 2, 2, 3, 3, 2, 3, 4, 6, 4, 3, 3, 5, 7, 7, 5, 3, 4, 6, 10, 10, 10, 6, 4, 4, 7, 11, 13, 13, 11, 7, 4, 5, 8, 14, 16, 19, 16, 14, 8, 5, 5, 9, 15, 19, 22, 22, 19, 15, 9, 5, 6, 10, 18, 22, ...
[ "easy", "nonn", "tabl" ]
A247523
[ 1, 3, 5, 6, 7, 9, 10, 12, 15, 16, 19, 20, 21, 23, 25, 28, 29, 31, 35, 36, 37, 38, 39, 40, 44, 49, 51, 52, 53, 54, 56, 57, 58, 59, 65, 66, 67, 68, 70, 72, 73, 75, 77, 78, 80, 82, 84, 85, 86, 87, 88, 89, 91, 93, ...
[ "nonn", "easy", "base" ]
A036103
[ 0, 1, 1110, 4110, 145120, 1524124120, 2534425120, 354413624120, 16355433523120, 26454463424120, 36456453523120, 46457443522120, 1736556443522120, 2736556433623120, 2756553463623120, 2766552473622120 ]
[ "base", "easy", "nice", "nonn" ]
A231773
[ 3, 5, 7, 9, 11, 13, 14, 15, 17, 19, 21, 23, 25, 26, 27, 29, 30, 31, 33, 34, 35, 37, 38, 39, 41, 42, 43, 45, 46, 47, 49, 50, 51, 53, 55, 56, 57, 58, 59, 61, 62, 63, 65, 66, 67, 68, 69, 70, 71, 73, 74, 75, 76, 77...
[ "nonn" ]
A304862
[ 1, 2, 4, 32, 512, 12000, 366400, 13688960, 602193152, 30397531136, 1728411805184, 109177081065472, 7578667350118400, 573143826340921340, 46886796648225350000, 4.1244370465959707e+21, 3.881538358864553e+23, 3.8910750374376925e+25, 4.1391003811059526e+27, 4.6564431333013006e+29 ]
[ "nonn" ]
A344667
[ 65867261184, 35927285472, 7303612896, 861578352, 111479616, 3478608, 581472, 36432, 0, 144 ]
[ "nonn", "fini", "full" ]
A334977
[ 0, 1, 9, 53, 299, 1692, 9690, 56221, 330165, 1959945, 11745435, 70974252, 432019844, 2646716264, 16307880462, 100996570221, 628356589721, 3925544432355, 24616047166095, 154886752443885, 977595783524955, 6187863825170160, 39269844955755960, 249819662230403140 ]
[ "nonn", "easy" ]
A035212
[ 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 0, 1, 2, 2, 1, 1, 2, 1, 2, 1, 2, 0, 0, 1, 1, 2, 1, 2, 2, 1, 0, 1, 0, 2, 2, 1, 2, 2, 2, 1, 0, 2, 0, 0, 1, 0, 0, 1, 3, 1, 2, 2, 0, 1, 0, 2, 2, 2, 0, 1, 0, 0, 2, 1...
[ "nonn", "easy", "mult" ]
A065429
[ 0, 0, 1, 7, 50, 371, 3023, 26962, 263503, 2806759, 32439638, 404794391, 5429249279, 77941628854, 1193095348531, 19406686847167, 334372746780002, 6085085617645595, 116659595136911900, 2350442395504338000, 49658877772798780000, 1.0979459563120672e+21 ]
[ "nonn" ]
A296295
[ 1, 4, 15, 37, 80, 157, 291, 518, 897, 1523, 2550, 4227, 6969, 11417, 18638, 30340, 49298, 79995, 129689, 210121, 340290, 550936, 891798, 1443355, 2335825, 3779905, 6116510, 9897252, 16014658, 25912867, 41928545, 67842497, 109772194, 177615945, 2873...
[ "nonn", "easy" ]
A096503
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 23, 24, 30, 46, 67, 69, 89, 92, 115, 134, 138, 178, 184, 223, 230, 276, 446, 669, 892, 1043, 1115, 1338, 1341, 1784, 2086, 2230, 2676, 2682, 446669, 666667, 893338, 89...
[ "base", "nonn" ]
A102359
[ 1, 6, 32, 108, 384, 2688, 5632, 27864, 153920, 499968, 1477440, 11708928, 22380544, 115568640, 620101632, 1826150832, 5726797824, 54044390400, 91626668032, 555102471168, 2352412508160, 7458459886080, 23955459951744, 199536712962048, 425355918188544, 1849167560835072...
[ "nonn" ]
A207666
[ 2, 2, 3, 2, 2, 2, 4, 3, 3, 2, 3, 2, 2, 2, 5, 4, 3, 3, 4, 3, 2, 4, 3, 3, 2, 3, 6, 2, 2, 2, 3, 5, 4, 4, 3, 4, 3, 3, 3, 4, 2, 5, 4, 3, 3, 2, 3, 4, 3, 3, 2, 7, 3, 2, 2, 6, 3, 2, 6, 7 ]
[ "nonn" ]
A047078
[ 29, 59, 137, 149, 179, 239, 269, 419, 431, 521, 569, 599, 659, 809, 1019, 1031, 1049, 1061, 1151, 1229, 1289, 1319, 1619, 1721, 1931, 1949, 2027, 2111, 2129, 2309, 2339, 2549, 2591, 2729, 2789, 2969, 2999, 3119, 3299, 3329, 3359, 3371...
[ "nonn" ]
A271142
[ 4713241, 182439049, 207158449, 278990209, 76545001, 38775529, 110607289, 135326689, 148376761 ]
[ "nonn", "fini", "full", "tabf" ]
A303699
[ 1, 4, -6, 9, -36, 30, 16, -120, 240, -140, 25, -300, 1050, -1400, 630, 36, -630, 3360, -7560, 7560, -2772, 49, -1176, 8820, -29400, 48510, -38808, 12012, 64, -2016, 20160, -92400, 221760, -288288, 192192, -51480, 81, -3240, 41580, -249480...
[ "sign", "tabl" ]
A255652
[ 1, 5, 9, 19, 23, 35, 45, 63, 67, 83, 95, 123, 133, 161, 179, 217, 221, 237, 253, 293, 305, 345, 373, 425, 435, 475, 503, 567, 585, 637, 675, 749, 753, 769, 785, 825, 841, 889, 929, 1001, 1013, 1061, 1101, 1197, 1225, 1313, 1...
[ "nonn", "look" ]
A036078
[ 1, 2, 13, 127, 1508, 20859, 332557, 6019108, 121462267, 2692076295, 64846340130, 1684713690917, 46916754353013, 1393010598959594, 43889040801834504, 1461369418905803000, 51243270154712080000 ]
[ "nonn" ]
A020180
[ 51, 85, 159, 265, 561, 671, 901, 1513, 1541, 1891, 2413, 2465, 2653, 2703, 2705, 3111, 3201, 3421, 4081, 4187, 4505, 5151, 6307, 6433, 6533, 6601, 6943, 7201, 8365, 8911, 9197, 9773, 9911, 10349, 10585, 11305, 12403, 13019, 13333, 14491, ...
[ "nonn" ]
A024230
[ 0, 1, -2, -21, -4, 2677, 49978, 11487, -36275464, -1538399639, -22119645578, 2006421812307, 213180133008116, 10489769063373276, -27722182352718930, -68871270400638150000, -8.464386105916692e+21, -5.359858150683299e+23 ]
[ "sign" ]
A173045
[ 1, 1, 1, 1, 10, 1, 1, 29, 29, 1, 1, 84, 6566, 84, 1, 1, 247, 14348916, 14348916, 247, 1, 1, 734, 282429536495, 150094635296999140, 282429536495, 734, 1, 1, 2193, 50031545098999730, 2.5031555049932416e+33, 2.5031555049932416e+33, 50031545098999730, ...
[ "nonn", "tabl" ]
A274780
[ 1, 11, 283, 9155, 327811, 12436541, 489807991, 19803209843, 816330309475, 34156900690841, 1446223566321733, 61826502242685656, 2664286789334520300, 115586782462237980000, 5.04347422964267e+21, 2.2115993711798057e+23, 9.74010406428446e+24, 4.306019767483461e+26 ]
[ "nonn", "easy" ]
A139752
[ 2, 3, 5, 7, 2, 5, 17, 37, 2, 3, 11, 83, 3, 7, 19, 67, 5, 13, 29, 53, 5, 41 ]
[ "base", "easy", "nonn", "less" ]
A127962
[ 11, 1011, 101011, 1010101011, 101010101011, 1010101010101011, 101010101010101010, 1.01010101010101e+21, 1.01010101010101e+29, 1.0101010101010102e+41 ]
[ "nonn", "base" ]
A274437
[ 7, 13, 19, 21, 31, 37, 39, 43, 49, 57, 61, 63, 67, 73, 79, 91, 93, 97, 103, 109, 111, 117, 127, 129, 133, 139, 147, 151, 157, 163, 169, 171, 181, 182, 183, 189, 193, 199, 201, 211, 217, 219, 223, 229, 237, 241, 247, 259, ...
[ "nonn", "easy" ]
A094756
[ 2, 4, 2, 7, 2, 4, 2, 7, 2, 4, 2, 16, 2, 4, 2, 7, 2, 4, 2, 7, 2, 4, 2, 16, 2, 4, 2, 7, 2, 4, 2, 7, 2, 4, 2, 16, 2, 4, 2, 7, 2, 4, 2, 7, 2, 4, 2, 22, 2, 4, 2, 7, 2, 4, 2, 7, 2, 4, 2, 16, 2, 4, 2...
[ "nonn" ]
A200020
[ 6, 4, 0, 0, 4, 9, 1, 9, 1, 1, 4, 2, 5, 7, 7, 1, 1, 5, 7, 3, 9, 8, 3, 5, 2, 6, 9, 6, 7, 5, 8, 4, 1, 2, 0, 1, 2, 9, 6, 6, 3, 4, 6, 8, 4, 7, 7, 3, 3, 5, 0, 9, 7, 1, 1, 0, 6, 6, 7, 1, 3, 8, 2, 1...
[ "nonn", "cons" ]
A260358
[ 1, 24, 198, 1043, 4074 ]
[ "nonn", "more" ]
A056691
[ 1, 1, 2, 2, 2, 1, 2, 3, 3, 2, 2, 3, 2, 2, 3, 4, 2, 2, 2, 3, 4, 2, 2, 4, 3, 2, 4, 4, 2, 3, 2, 5, 3, 2, 4, 5, 2, 2, 4, 5, 2, 1, 2, 4, 4, 2, 2, 6, 3, 3, 3, 4, 2, 3, 4, 6, 4, 2, 2, 5, 2, 2, 6, 6...
[ "nonn" ]
A345894
[ 1, 16, 61, 81, 256, 625, 976, 1296, 2401, 4096, 4941, 6561, 10000, 14641, 15616, 20736, 28561, 38125, 38416, 50625, 65536, 79056, 83521, 104976, 130321, 146461, 160000, 194041, 194481, 229981, 234256, 249856, 279841, 331776, 390625, 400221, 456...
[ "nonn" ]
A231468
[ 24, 32, 741, 4138, 42229, 425678, 3759661, 40527272, 407446601, 4196157607, 46093674757, 485402548295, 5361646541908, 59171322751388, 651629483926711, 7324674361415032, 81730192988354430, 918828642319523000 ]
[ "nonn" ]
A036158
[ 1, 3, 9, 27, 81, 44, 132, 197, 193, 181, 145, 37, 111, 134, 4, 12, 36, 108, 125, 176, 130, 191, 175, 127, 182, 148, 46, 138, 16, 48, 144, 34, 102, 107, 122, 167, 103, 110, 131, 194, 184, 154, 64, 192, 178, 136 ]
[ "nonn", "easy" ]
A280422
[ 1, 2, 3, 6, 9, 13, 21, 30, 41, 59, 81, 108, 147, 195, 253, 333, 431, 549, 704, 892, 1119, 1409, 1758, 2176, 2697, 3321, 4065, 4976, 6061, 7345, 8898, 10737, 12901, 15489, 18535, 22103, 26333, 31284, 37056, 43844, 51751, 60931, 71655...
[ "nonn" ]
A112531
[ 1, 1, 2, 1, 2, 3, 3, 1, 2, 3, 6, 4, 3, 6, 4, 1, 2, 3, 6, 4, 6, 12, 12, 5, 3, 6, 12, 10, 4, 10, 5, 1, 2, 3, 6, 4, 6, 12, 12, 5, 6, 12, 24, 20, 12, 30, 20, 6, 3, 6, 12, 10, 12, 30, 30, 15, 4, 10, 20, ...
[ "nonn", "tabf" ]
A111835
[ 1, 1, 1, 1, 8, 1, 1, 232, 64, 1, 1, 36968, 16192, 512, 1, 1, 35593832, 21928768, 1047040, 4096, 1, 1, 219379963496, 178379459392, 11424946688, 67096576, 32768, 1, 1, 9003699178010216, 9288403489672000, 748093366229504, 5862250172416 ]
[ "nonn", "tabl" ]
A367128
[ 1, 1, 1, 1, 2, 2, 2, 3, 3, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10,...
[ "nonn" ]
A092129
[ 3091, 8129, 8131, 9983, 9985, 55559, 92603, 99443, 99445, 112709, 132077, 132079, 182749, 190937, 190939, 209479, 237449, 237451, 239089, 249689, 296779, 300449, 313411, 401429, 401431, 441677, 441679, 452639, 452641, 547157, 604487, 604489, 631201, ...
[ "nonn" ]
A236773
[ 0, 1, 6, 16, 33, 59, 96, 145, 210, 292, 393, 515, 660, 829, 1026, 1252, 1509, 1799, 2124, 2485, 2886, 3328, 3813, 4343, 4920, 5545, 6222, 6952, 7737, 8579, 9480, 10441, 11466, 12556, 13713, 14939, 16236, 17605, 19050, 20572, 22173, 23...
[ "nonn", "easy" ]
A264059
[ 1, 2, 1, 4, 8, 1, 8, 64, 18, 1, 16, 216, 324, 45, 1, 32, 729, 2592, 2025, 125, 1, 64, 3375, 20736, 32400, 15625, 320, 1, 128, 15625, 207360, 518400, 450000, 102400, 832, 1, 256, 64000, 2073600, 11151360, 12960000, 5760000, 692224, ...
[ "nonn", "tabl" ]
A090612
[ 2, 8, 21, 38, 153, 191, 232, 279, 327, 378, 493, 559, 1086, 1272, 1360, 1769, 1989, 2111, 2224, 2344, 2471, 3272, 3721, 3863, 4838, 5006, 5359, 6291, 6871, 7077, 7909, 8127, 9245, 9928, 10654, 10889, 12164, 12957, 13764, 14881, 16034, ...
[ "nonn" ]
A027419
[ 4, 7, 15, 26, 54, 73, 115, 143, 200, 297, 340, 461, 559, 619, 731, 904, 1098, 1178, 1393, 1556, 1652, 1912, 2103, 2391, 2785, 3008, 3150, 3392, 3535, 3789, 4647, 4941, 5363, 5555, 6299, 6495, 6963, 7481, 7864, 8403, 8968, 9196, 1011...
[ "nonn", "easy" ]
A033776
[ 1, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 1, 0...
[ "nonn", "easy" ]
A118483
[ 1, 44, 105, 178, 257, 354, 457, 608, 771, 944, 1137, 1360, 1589, 1830, 2101, 2378, 2661, 2974, 3305, 3654, 4021, 4394, 4777, 5174, 5595, 6028, 6467, 6924, 7387, 7910, 8457, 9050, 9651, 10258, 10871, 11490, 12133, 12794, 13467, 14158, 14...
[ "nonn" ]
A377469
[ 1, 1, 2, 8, 48, 480, 5760, 92160, 2027520, 48660480, 1362493440, 49049763840, 1961990553600, 82403603251200, 3790565749555200, 197109418976870400, 11826565138612224000, 780553299148406800000, 5.4638730940388475e+22, 4.152543551469524e+24, 3.40508571220501e+26 ]
[ "nonn" ]
A236018
[ 81, 306, 306, 1276, 1126, 1276, 4672, 3744, 3744, 4672, 18784, 12544, 13750, 12544, 18784, 70688, 41844, 34288, 34288, 41844, 70688, 278352, 140716, 110274, 95848, 110274, 140716, 278352, 1062192, 471308, 313060, 267424, 267424, 313060, 471308 ]
[ "nonn", "tabl" ]
A317585
[ 0, 1, 2, 3, 2, 5, 4, 3, 2, 9, 6, 7, 6, 5, 2, 5, 6, 9, 4, 9, 2, 13, 12, 13, 8, 7, 6, 11, 6, 13, 2, 9, 8, 7, 8, 13, 4, 13, 6, 15, 6, 11, 12, 13, 16, 23, 8, 13, 0, 17, 14, 25, 14, 13, 8, 7, 6, 19, 8, 1...
[ "nonn" ]
A093448
[ 1, 5, 32, 316, 4661, 94217, 2458810, 80128082, 3193424921, 153067911301, 8685693546692, 574691476630760, 43735137898763920, 3784250198022172000, 368841694500041850000, 4.019447052600563e+22 ]
[ "nonn" ]
A062487
[ 1, 1, 5, 15, 39, 85, 162, 284, 464, 718, 1064, 1522, 2111, 2855, 3777, 4902, 6257, 7870, 9769, 11985, 14549, 17495, 20855, 24665, 28960, 33779, 39157, 45136, 51754, 59052, 67073, 75860, 85455, 95905, 107253, 119547, 132833, 147160 ]
[ "nonn" ]
A250692
[ 104, 543, 2541, 11150, 47002, 193117, 780551, 3122604, 12415380, 49197371, 194657281, 769963978, 3046948238, 12068103705, 47849956731, 189941232872, 754813261576, 3002665654519, 11955693334901, 47642223194886 ]
[ "nonn" ]
A108415
[ 1, 2, 1, 3, 1, 3, 1, 1, 3, 1, 3, 3, 1, 1, 2, 3, 1, 3, 3, 1, 3, 1, 1, 3, 3, 1, 3, 1, 1, 3, 1, 3, 1, 3, 1, 2, 3, 1, 2, 3, 1, 3, 1, 3, 1, 2, 3, 3, 1, 1, 3, 1, 3, 2, 2, 3, 1, 3, 3, 1, 1, 3, 3, 1...
[ "nonn" ]
A373625
[ 1, 2, 8, 26, 112, 410, 1860, 8074, 40376, 199050, 1085232, 5923394, 34842408, 206403234, 1295653484, 8219293954, 54613967584, 367414298386, 2567777927672, 18187100499306, 133016727225888, 986352813933034, 7518613974827732, 58110359176236310, 460095738657984000 ]
[ "nonn" ]
A234967
[ 32, 16, 7, 4, 4, 8, 5, 6, 2, 2, 2, 4, 5, 3, 3, 2, 3, 4, 2, 2, 2, 2, 4, 3, 2, 4, 4, 2, 2, 4, 3, 3, 4, 3, 3, 3, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, ...
[ "nonn", "base" ]
A276060
[ 1, 1, 1, 1, 2, 1, 2, 2, 2, 2, 4, 3, 6, 3, 10, 5, 10, 4, 4, 20, 4, 7, 22, 12, 6, 34, 20, 10, 42, 36, 9, 64, 48, 8, 15, 70, 96, 8, 13, 112, 120, 32, 22, 124, 204, 56, 19, 184, 280, 112, 32, 212, 436, 176, 16, ...
[ "nonn", "tabf" ]
A074244
[ 1, 2, 7, 9, 14, 18, 29, 58, 213, 271, 284, 426, 542, 673, 731, 791, 833, 1011, 1015, 1017, 1131, 1305, 1346, 1348, 1376, 1462, 1508, 1568, 1582, 1624, 1666, 1720, 1960, 2022, 2030, 2034, 2064, 2088, 2262, 2352, 2436, 2580, 2610, 2...
[ "nonn" ]
A096696
[ 0, 5, 29, 37, 0, 0, 0, 0, 0, 149, 53, 0, 53, 71, 137, 227, 0, 0, 89, 79, 0, 0, 0, 0, 179, 0, 0, 173, 173, 0, 0, 419, 0, 157, 0, 157, 173, 0, 173, 0, 263, 0, 0, 0, 0, 211, 229, 0, 353, 397, 0, 0, 353, 359, 409...
[ "nonn" ]
A330188
[ 1, 2, 5, 8, 12, 17, 21, 26, 32, 37, 43, 50, 56, 63, 70, 78, 86, 94, 102, 111, 119, 128, 138, 147, 157, 167, 177, 188, 198, 209, 220, 231, 243, 254, 266, 278, 291, 303, 316, 328, 341, 355, 368, 382, 395, 409, 423, 437, 45...
[ "nonn" ]
A195707
[ 6, 6, 8, 9, 6, 4, 0, 7, 4, 2, 6, 8, 4, 0, 7, 1, 3, 0, 1, 4, 1, 3, 2, 7, 1, 1, 2, 6, 1, 2, 1, 7, 6, 4, 7, 8, 0, 1, 6, 9, 3, 0, 7, 1, 8, 1, 1, 9, 6, 3, 4, 7, 0, 8, 1, 6, 2, 9, 2, 9, 7, 6, 0, 3...
[ "nonn", "cons" ]
A285103
[ 1, 2, 4, 6, 6, 12, 12, 16, 22, 28, 32, 30, 36, 52, 48, 62, 62, 68, 88, 104, 116, 108, 128, 128, 132, 168, 160, 168, 200, 204, 240, 232, 242, 284, 300, 324, 332, 348, 352, 352, 412, 440, 400, 466, 460, 516, 496, 566, 582,...
[ "nonn" ]
A222743
[ 6, 657, 126947, 27397461, 6178897165, 1424636571214, 332960192034230, 78562540663580980, 18671065206165530000, 4.4627278563031756e+21, 1.0716424368170308e+24, 2.5833159118803977e+26 ]
[ "nonn" ]
A309434
[ 6, 13, 20, 26, 33, 40, 46, 53, 60, 66, 73, 80, 87, 93, 100, 107, 113, 120, 127, 133, 140, 147, 154, 160, 167, 174, 180, 187, 194, 200, 207, 214, 220, 227, 234, 241, 247, 254, 261, 267, 274, 281, 287, 294, 301, 308, 314, 32...
[ "nonn" ]
A216513
[ 1, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 2, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 1, 2, 0, 0, 1, 0, 1, 0, 0, 1...
[ "nonn" ]
A308322
[ 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, -2, 3, 0, 1, 1, 9, 37, 9, 1, 1, 1, -44, 997, -692, 31, 0, 1, 1, 265, 44121, 148041, 14371, 111, 1, 1, 1, -1854, 2882071, -66211704, 25413205, -315002, 407, 0, 1, 1, 14833, 260415373, 5341...
[ "sign", "tabl" ]
A208647
[ 1, 1, 1, 7, 2, 2, 17, 3, 3, 31, 4, 4, 49, 5, 5, 71 ]
[ "nonn", "easy", "frac" ]
A008579
[ 1, 4, 8, 14, 18, 22, 28, 30, 38, 38, 48, 46, 58, 54, 68, 62, 78, 70, 88, 78, 98, 86, 108, 94, 118, 102, 128, 110, 138, 118, 148, 126, 158, 134, 168, 142, 178, 150, 188, 158, 198, 166, 208, 174, 218, 182, 228, 190, 238, ...
[ "nonn", "nice", "easy" ]
A136902
[ 0, 2, 20, 200, 2000, 20000, 20602, 200000, 206020, 2000000, 2006002, 2060200, 20000000, 20060020, 20602000, 200000000, 200060002, 200600200, 206020000, 2000000000, 2000600020, 2006002000, 2060200000, 20000000000, 20000600002, 20006000200, 20060020000, 2060200000...
[ "base", "nonn" ]
A108062
[ 1, 2, 3, 6, 10, 15, 79, 82, 142, 190, 499, 5071, 7350, 38646, 42619, 53347 ]
[ "nonn", "more" ]
A090683
[ 1, 0, 1, 0, 2, 1, 0, 3, 9, 1, 0, 4, 42, 24, 1, 0, 5, 150, 250, 50, 1, 0, 6, 465, 1800, 975, 90, 1, 0, 7, 1323, 10535, 12250, 2940, 147, 1, 0, 8, 3556, 54096, 119070, 58800, 7448, 224, 1, 0, 9, 9180, 254100, 979020, 8...
[ "easy", "nonn", "tabl" ]
A212567
[ 0, 0, 2, 5, 11, 27, 42, 68, 106, 149, 201, 279, 354, 452, 572, 701, 845, 1031, 1212, 1428, 1676, 1937, 2219, 2559, 2892, 3272, 3694, 4133, 4599, 5139, 5670, 6260, 6902, 7565, 8261, 9047, 9822, 10668, 11576, 12509, 13481, 14559, 1562...
[ "nonn", "easy" ]
A079195
[ 0, 0, 2, 666, 1047436, 30517547395, 21936950639192784, 4.599865365447399e+23, 3.2451855365842673e+32 ]
[ "nonn" ]
A109368
[ 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 4, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 14, 16, 18, 20, 22, 24, 27, 30, 34, 37, 40, 44, 49, 54, 60, 65, 71, 78, 85, 94, 103, 112, 122, 132, 144, 158, 172, 186, 201, 218, 237, 258, ...
[ "nonn" ]
A215360
[ 2, 3, 17, 19, 37, 53, 71, 89, 139, 157, 173, 191, 223, 241, 257, 293, 359, 461, 463, 479, 547, 563, 599, 631, 683, 701, 733, 751, 769, 853, 887, 937, 971, 1039, 1091, 1109, 1193, 1277, 1279, 1381, 1447, 1481, 1483, 1499, 1549, ...
[ "nonn", "easy" ]
A260588
[ 0, 2, 4, 4, 4, 10, 4, 8, 8, 1, 2, 5, 3, 6, 7, 4, 5, 8, 6, 2, 6, 3, 4, 9, 2, 6, 11, 2, 4, 10, 4, 9, 8, 6, 6, 12, 3, 6, 8, 4, 6, 7, 3, 6 ]
[ "nonn", "base", "hard", "more" ]
A014343
[ 8, 36, 114, 291, 669, 1386, 2678, 4851, 8373, 13858, 22134, 34263, 51635, 75972, 109374, 154483, 214383, 292812, 394148, 523521, 686901, 891112, 1143936, 1454187, 1831973, 2288400, 2836044, 3488969, 4262541, 5173836, 6241612, 7486437, 8930649, 105988...
[ "nonn" ]
A081315
[ 1, 2, 3, 2, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 9, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, ...
[ "easy", "nonn" ]
A116365
[ 0, 1, 3, 6, 11, 20, 33, 56, 86, 136, 200, 301, 429, 621, 868, 1219, 1669, 2297, 3091, 4171, 5542, 7357, 9648, 12652, 16402, 21250, 27298, 35003, 44556, 56637, 71515, 90160, 113046, 141464, 176189, 219053, 271149, 335044, 412447, 506787, ...
[ "nonn" ]
A250902
[ 1333, 4750, 14196, 39003, 102789, 265546, 680504, 1742387, 4479925, 11612686, 30445732, 80928947, 218431629, 598934874, 1667663960, 4709666459, 13467918413, 38924144238, 113481270292, 333163706923, 983467807413, 2915295816330 ]
[ "nonn" ]
A240130
[ 5, 13, 29, 53, 137, 173, 293, 397, 593, 857, 977, 1373, 1697, 1913, 2213, 2909, 3517, 3821, 4493, 5077, 5333, 6257, 7213, 7937, 9413, 10301, 10613, 11549, 11897, 13093, 16193, 17417, 18773, 19421, 22397, 22817, 24749, 26573, 27893, 30029 ...
[ "nonn" ]
A005274
[ 1, 2, 4, 54, 5337932, 3253511965960720 ]
[ "nonn" ]
A069641
[ 4, 600, 2116800, 149361408000, 195185487974400000, 4.5261886814293654e+24, 1.814098233992362e+33, 1.235046181641631e+43 ]
[ "easy", "nonn" ]
A150226
[ 1, 2, 6, 21, 86, 318, 1349, 5654, 23674, 102512, 451457, 1952965, 8704458, 38982187, 172994207, 781645957, 3548152605, 15981222319, 72960968130, 334143804197, 1521158967813, 6995945513819, 32254048901878, 147980022782907, 684415068561784, 3171558963632792, 1463803...
[ "nonn", "walk" ]
A052318
[ 1, 2, 3, 16, 145, 1536, 19579, 290816, 4942305, 94689280, 2020278931, 47523053568, 1222147737265, 34117226135552, 1027550555918475, 33213871550365696, 1146891651823112700, 42135941698113500000, 1.6411642165962584e+21, 6.755083966880764e+22 ]
[ "nonn", "eigen" ]
A242585
[ 1, 9, 9, 45, 9, 405, 15, 189, 81, 729, 27, 6075, 27, 1215, 2025, 729, 81, 45927, 27, 32805, 2025, 6561, 81, 229635, 243, 2187, 2187, 18225, 9, 7381125, 243, 24057, 2187, 19683, 3645, 6200145, 729, 19683, 19683, 1240029, 81, 22143375, ...
[ "nonn" ]
A091319
[ 0, 2, 9, 52, 223, 913, 3388 ]
[ "nonn", "more" ]
A284174
[ 24, 30, 36, 60, 84, 90, 100, 112, 120, 128, 144, 152, 162, 198, 204, 210, 216, 240, 276, 288, 300, 320, 330, 340, 352, 360, 372, 384, 390, 396, 410, 450, 456, 462, 472, 480, 492, 520, 540, 558, 564, 576, 600, 624, 630, 648 ]
[ "nonn" ]
A210440
[ 0, 4, 16, 40, 80, 140, 224, 336, 480, 660, 880, 1144, 1456, 1820, 2240, 2720, 3264, 3876, 4560, 5320, 6160, 7084, 8096, 9200, 10400, 11700, 13104, 14616, 16240, 17980, 19840, 21824, 23936, 26180, 28560, 31080, 33744, 36556, 39520, 42640, ...
[ "nonn", "easy" ]
A275592
[ 1, 1, 2, 3, 5, 7, 12, 16, 26, 35, 56, 74, 117, 154, 241, 317, 492, 645, 998, 1306, 2014, 2634, 4053, 5296, 8139, 10630, 16321, 21310, 32699, 42684, 65472, 85452, 131038, 171012, 262198, 342161, 524552, 684497, 1049300, 1369216, 2098849,...
[ "nonn" ]
A278852
[ 0, 239, 15066, 449677, 9317846, 154090507, 2167109763, 26799758534, 297417275848, 3004658410735, 27940725989130, 241350612592135, 1951440294582041, 14865802497447044, 107290958051308510 ]
[ "nonn" ]
A138055
[ 1, 3, 5, 9, 3, 1, 9, 5, 1, 3, 5, 9, 3, 1, 9, 5, 1, 3, 5, 9, 3, 1, 9, 5, 1, 3, 5, 9, 3, 1, 9, 5, 1, 3, 5, 9, 3, 1, 9, 5, 1, 3, 5, 9, 3, 1, 9, 5, 1, 3, 5, 9, 3, 1, 9, 5, 1, 3, 5, 9, 3, 1, 9, 5...
[ "nonn", "easy", "less" ]
A108052
[ 1, 3, 5, 7, 10, 11, 17, 59, 81, 108, 574, 629, 1069, 1759, 2063, 2682, 9174, 40929, 42457, 66033 ]
[ "more", "nonn", "hard" ]
A168045
[ 1, 3, 6, 9, 12, 14, 16, 18, 20, 23, 25, 27, 29, 31, 34, 36, 38, 40, 43, 45, 47, 49, 51, 53, 56, 58, 60, 62, 64, 66, 69, 71, 73, 75, 78, 80, 82, 84, 87, 89, 91, 93, 95, 98, 100, 102, 104, 106, 108, 111, 113, 115, ...
[ "nonn", "less" ]
A243371
[ 4, 6, 4, 5, 9, 2, 2, 7, 0, 8, 9, 4, 7, 9, 0, 5, 1, 2, 9, 2, 0, 7, 6, 7, 4, 9, 3, 2, 0, 0, 8, 3, 6, 9, 1, 9, 4, 8, 0, 0, 4, 9, 3, 7, 0, 4, 2, 7, 9, 8, 6, 9, 5, 2, 2, 9, 8, 6, 0, 3, 1, 1, 1, 6...
[ "nonn", "cons" ]
A035336
[ 2, 7, 10, 15, 20, 23, 28, 31, 36, 41, 44, 49, 54, 57, 62, 65, 70, 75, 78, 83, 86, 91, 96, 99, 104, 109, 112, 117, 120, 125, 130, 133, 138, 143, 146, 151, 154, 159, 164, 167, 172, 175, 180, 185, 188, 193, 198, 201, 206, ...
[ "nonn" ]