id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A189632
[ 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0...
[ "nonn" ]
A003611
[ 1, 1, 3, 4, 9, 16, 41, 78, 179, 382, 889, 1992, 4648, 10749, 25462, 59891, 142793, 340761, 819533, 1975109, 4784055, 11617982, 28316757, 69185852, 169516558, 416268547, 1024543728, 2526631078, 6242969248, 15452300967, 38310417739 ]
[ "nonn" ]
A237371
[ 3840, 20812, 116880, 723928, 4429368, 27053348, 165467520, 1026092552, 6319203136, 38680736568, 237385725976, 1476526709904, 9118194049424, 55928190691948, 344012027433208, 2146405306742592, 13288265907921064 ]
[ "nonn" ]
A000962
[ 1, 0, 0, 1, 2, 5, 15, 32, 99, 210, 650, 1379, 4268, 9055, 28025, 59458, 184021, 390420, 1208340, 2563621, 7934342, 16833545, 52099395, 110534372, 342101079, 725803590, 2246343710, 4765855559, 14750202128, 31294112515, 96854484845, 205487024518, 6359771...
[ "nonn", "easy" ]
A203123
[ 1, 2, 17, 116, 2480, 93046, 5938485, 852643276, 227989002500 ]
[ "nonn" ]
A166395
[ 0, 2, 0, 2, 2, 3, 0, 2, 2, 2, 3, 4, 4, 4, 0, 2, 2, 2, 4, 3, 2, 4, 3, 4, 4, 4, 4, 5, 6, 5, 0, 2, 2, 2, 4, 2, 3, 4, 4, 3, 4, 2, 4, 7, 4, 5, 3, 4, 4, 4, 4, 6, 4, 4, 5, 6, 5, 6, 6, 6, 8, 6, 0, 2...
[ "base", "nonn" ]
A218559
[ 0, 6, 714, 1047188, 30515132780, 21936856591278330, 4.599864434529713e+23, 3.245185508951664e+32, 8.727963565271662e+42, 9.999999999888888e+54 ]
[ "nonn", "base" ]
A198504
[ 6, 9, 1, 6, 2, 1, 3, 6, 4, 6, 2, 5, 5, 8, 4, 5, 3, 2, 0, 0, 7, 1, 1, 6, 4, 0, 3, 1, 3, 7, 2, 6, 4, 0, 7, 3, 7, 9, 1, 5, 6, 4, 1, 1, 5, 9, 4, 9, 1, 0, 0, 0, 9, 7, 2, 7, 7, 7, 7, 6, 3, 5, 3, 5...
[ "nonn", "cons" ]
A139328
[ 0, 3, 6, 10, 14, 19, 24, 30, 36, 45, 52, 60, 67, 76, 86, 96, 105, 117, 127, 138, 151, 162, 176, 189, 203, 216, 230, 246, 262, 277, 292, 308, 325, 343, 362, 376, 398, 417, 435, 451, 473, 491, 515, 535, 557, 579, 599, 622, ...
[ "nonn" ]
A233750
[ 3244, 91116, 2317964, 62155368, 1654352580, 44256803664, 1183521086580, 31668690140876, 847408414199032, 22677312254655280, 606869192776241700, 16240684935695122000, 434625017327410300000, 1.1631241726803241e+22 ]
[ "nonn" ]
A364535
[ 1, 1, 1, 3, 9, 20, 44, 93, 191, 390, 787, 1600, 3250, 6563, 13227, 26609, 53484, 107588, 216413, 434894, 872834, 1750938, 3512454, 7043770, 14119562, 28300792, 56733873, 113746102, 228033527, 456999525, 915558925, 1834081043, 3674191081, 7361544506, ...
[ "nonn" ]
A158224
[ 194, 780, 1758, 3128, 4890, 7044, 9590, 12528, 15858, 19580, 23694, 28200, 33098, 38388, 44070, 50144, 56610, 63468, 70718, 78360, 86394, 94820, 103638, 112848, 122450, 132444, 142830, 153608, 164778, 176340, 188294, 200640, 213378, 226508 ]
[ "nonn", "easy" ]
A041453
[ 1, 1, 2, 7, 9, 133, 142, 559, 701, 1260, 38501, 39761, 78262, 274547, 352809, 5213873, 5566682, 21913919, 27480601, 49394520, 1509316201, 1558710721, 3068026922, 10762791487, 13830818409, 204394249213, 218225067622, 859069452079, 1077294519701, 1936363971780...
[ "nonn", "frac", "easy" ]
A258583
[ 1, 1, 16, 5471, 75965484, 70692556053053, 6.614511157454873e+21, 8.73533661956669e+31, 2.177579824629001e+44, 1.3210047009900873e+59, 2.443142193014593e+76 ]
[ "nonn" ]
A168607
[ 3, 5, 11, 29, 83, 245, 731, 2189, 6563, 19685, 59051, 177149, 531443, 1594325, 4782971, 14348909, 43046723, 129140165, 387420491, 1162261469, 3486784403, 10460353205, 31381059611, 94143178829, 282429536483, 847288609445 ]
[ "nonn", "easy" ]
A139017
[ 1, 2, 8, 60, 906, 27189, 1613401, 189475577, 44047431458, 20270048678813, 18464881592730176, 33296006308979740000, 1.1884805081922626e+23, 8.39743872159535e+26, 1.174509500073644e+31, 3.25177925025179e+35 ]
[ "nonn" ]
A057153
[ 1, 3, 9, 26, 73, 194, 485, 1150, 2617, 5779, 12497, 26653, 56355, 118545, 248605, 520365, 1087853, 2272770, 4748677, 9930475, 20800122, 43658310, 91836751, 193549010, 408449129, 862455193, 1820771343, 3840569196, 8089327515 ]
[ "nice", "nonn", "easy" ]
A158417
[ 1, 1, -1, -2, 0, 1, 4, 4, -1, -1, 12, -4, -7, 1, 1, -24, -16, 18, 10, -2, -1, -72, 48, 66, -22, -15, 2, 1, -216, 432, -54, -158, 26, 21, -2, -1, 864, 0, -864, 128, 230, -32, -25, 2, 1, -1728, -1728, 1512, 1328, -542, ...
[ "sign", "tabl", "uned" ]
A126509
[ 1, 14, 106, 834, 6626, 52818, 421418, 3363330, 26844922, 214272194, 1710301706, 13651507570, 108965442842, 869755228898, 6942331285450, 55413250676370, 442305075971450, 3530451257562498, 28179839583470760, 224929704767724800 ]
[ "nonn", "base" ]
A315981
[ 1, 6, 9, 14, 17, 22, 28, 31, 34, 37, 42, 50, 58, 59, 66, 65, 70, 76, 77, 84, 85, 92, 100, 106, 105, 114, 113, 122, 128, 127, 134, 131, 140, 148, 156, 153, 164, 161, 170, 176, 173, 184, 181, 192, 200, 206, 199, 212, 207, ...
[ "nonn" ]
A381777
[ 0, 0, 1, 2, 3, 6, 11, 22, 44, 92, 193, 414, 896, 1966, 4347, 9700, 21787, 49262, 111976, 255824, 586996, 765220, 1187129, 2186146, 3966763, 7642844, 14733649, 29037924, 57062745, 113051998, 222948526, 438614648, 853410655, 1637949306, 3069032471, ...
[ "nonn", "easy" ]
A210516
[ 0, 1, 2, 7, 3, 3, 2, 0, 3, 6, 5, 4, 15, 7, 5, 8, 9, 3, 11, 6, 7, 16, 1, 0, 8, 2, 7, 4, 3, 4, 16, 5, 7, 25, 4, 17, 19, 5, 13, 12, 6, 7, 17, 18, 8, 6, 7, 3, 0, 3, 22, 4, 3, 8, 31, 14, 10, 6, 9, 11, ...
[ "nonn", "tabl" ]
A100571
[ 8, 27, 64, 125, 216, 343, 729, 1000, 1331, 1728, 2197, 2744, 3375, 4096, 4913, 5832, 6859, 8000, 9261, 10648, 12167, 13824, 15625, 17576, 19683, 21952, 24389, 27000, 29791, 32768, 35937, 39304, 42875, 46656, 50653, 54872, 59319, 64000 ]
[ "nonn" ]
A170722
[ 1, 41, 1640, 65600, 2624000, 104960000, 4198400000, 167936000000, 6717440000000, 268697600000000, 10747904000000000, 429916160000000000, 17196646400000000000, 687865856000000000000, 2.751463424e+22 ]
[ "nonn" ]
A249779
[ 1, 2, 2, 2, 2, 22, 20, 28, 2, 494, 912, 1672, 2376, 4836, 4160, 4184, 2, 131038, 261800, 522272, 1035804, 2053288, 3977272, 7742352, 13942968, 28016020, 47111040, 84948528, 92072064, 272727022, 249686810, 167376688, 2, 8589934526, 17179867992, 34...
[ "nonn" ]
A165220
[ 0, 91, 614, 1953, 4492, 8615, 14706, 23149, 34328, 48627, 66430, 88121, 114084, 144703, 180362, 221445, 268336, 321419, 381078, 447697, 521660, 603351, 693154, 791453, 898632, 1015075, 1141166, 1277289, 1423828, 1581167, 1749690, 1929781 ]
[ "nonn", "easy" ]
A158946
[ 1, 1, 1, 2, 1, 2, 2, 2, 1, 3, 3, 2, 3, 1, 4, 3, 3, 2, 4, 1, 5, 4, 3, 4, 2, 5, 1, 6, 4, 4, 3, 5, 2, 6, 1, 7, 5, 4, 5, 3, 6, 2, 7, 1, 8, 5, 5, 4, 6, 3, 7, 2, 8, 1, 9, 6, 5, 6, 4, 7, 3, 8, 2, 9...
[ "nonn", "tabl" ]
A201722
[ 4, 10, 20, 35, 56, 83, 116, 155, 200, 251, 308, 371, 440, 515, 596, 683, 776, 875, 980, 1091, 1208, 1331, 1460, 1595, 1736, 1883, 2036, 2195, 2360, 2531, 2708, 2891, 3080, 3275, 3476, 3683, 3896, 4115, 4340, 4571, 4808, 5051, 5300, ...
[ "nonn" ]
A170846
[ 1, 0, 0, 3, 1, 0, 0, 3, 1, 0, 9, 6, 1, 0, 0, 3, 1, 0, 9, 6, 1, 0, 9, 6, 1, 27, 27, 9, 1, 0, 0, 3, 1, 0, 9, 6, 1, 0, 9, 6, 1, 27, 27, 9, 1, 0, 9, 6, 1, 27, 27, 9, 1, 27, 27, 9, 82, 108, 54, 12, 1, ...
[ "nonn" ]
A080367
[ 0, 2, 3, 0, 5, 3, 7, 0, 0, 5, 11, 3, 13, 7, 5, 0, 17, 2, 19, 5, 7, 11, 23, 3, 0, 13, 0, 7, 29, 5, 31, 0, 11, 17, 7, 0, 37, 19, 13, 5, 41, 7, 43, 11, 5, 23, 47, 3, 0, 2, 17, 13, 53, 2, 11, 7, 19, 29, 5...
[ "nonn", "easy" ]
A338118
[ 1, 2, 4, 12, 6, 18, 72, 8, 24, 96, 36, 144, 192, 48, 720, 10, 30, 120, 600, 60, 45, 27, 108, 540, 240, 320, 1600, 2000, 75, 300, 1500, 9000, 90, 54, 216, 1080, 900, 400, 7200, 480, 384, 1920, 2400, 14400, 3000, 3750, 22500, ...
[ "nonn" ]
A152473
[ 5, 53, 311, 1103, 2647, 3137, 16339, 44927, 47123, 68521, 189149, 337871, 609533, 668539, 1192753, 1415773, 1502947, 1586857, 1768583, 2000143, 2068813, 2126539, 2332181, 2772829, 3396091, 3841181, 4712063, 5153209, 5428037, 5770697 ]
[ "nonn" ]
A343974
[ 38, 68, 80, 98, 122, 128, 146, 158, 164, 188, 206, 212, 218, 224, 248, 278, 290, 302, 308, 326, 332, 338, 344, 368, 374, 380, 398, 410, 416, 428, 440, 458, 476, 488, 500, 518, 530, 536, 542, 548, 554, 578, 584, 608, 614, 626, ...
[ "nonn" ]
A318853
[ 0, 1, 1, 2, 4, 9, 20, 48, 114, 284, 714, 1829, 4731, 12391, 32711, 87083, 233347, 629132, 1705026, 4642964, 12696279, 34851400, 95996673, 265251812, 735029389, 2042187079, 5687726124, 15876511622, 44409196932, 124459720195, 349434222059, 982723600768 ]
[ "nonn" ]
A342793
[ 1, 2, 4, 3, 6, 7, 13, 5, 9, 11, 20, 10, 19, 22, 40, 8, 14, 17, 30, 15, 29, 33, 60, 16, 28, 34, 61, 31, 58, 67, 12, 21, 26, 45, 23, 44, 50, 90, 24, 42, 51, 92, 47, 87, 101, 25, 43, 52, 91, 46, 88, 100, 49, 85, ...
[ "nonn", "base" ]
A127925
[ 3, 7, 19, 23, 43, 47, 73, 109, 113, 199, 283, 293, 313, 317, 463, 467, 503, 509, 523, 619, 661, 683, 691, 887, 1063, 1069, 1109, 1129, 1303, 1307, 1321, 1327, 1613, 1621, 1627, 1637, 1669, 1789, 2143, 2161, 2383, 2393, 2399, 2477,...
[ "nonn" ]
A351928
[ 2, 2, 6, 8, 8, 8, 20, 24, 24, 24, 72, 186, 186, 332, 332, 1134, 1134, 1134, 1134, 1134, 1134, 25458, 25458, 25458, 25458, 25458, 25458, 159140, 249968, 249968, 249968, 249968, 249968, 249968, 249968, 249968, 9076914, 9076914, 9076914, 907...
[ "nonn", "base" ]
A158488
[ 72, 264, 584, 1032, 1608, 2312, 3144, 4104, 5192, 6408, 7752, 9224, 10824, 12552, 14408, 16392, 18504, 20744, 23112, 25608, 28232, 30984, 33864, 36872, 40008, 43272, 46664, 50184, 53832, 57608, 61512, 65544, 69704, 73992, 78408, 82952, 87624, ...
[ "nonn", "easy" ]
A201940
[ 1, 1, 4, 7, 7, 5, 7, 6, 3, 2, 1, 4, 4, 7, 4, 3, 4, 9, 3, 0, 3, 4, 3, 7, 1, 9, 9, 0, 6, 1, 0, 6, 7, 4, 7, 6, 6, 4, 3, 4, 6, 1, 9, 1, 2, 4, 4, 6, 2, 9, 3, 5, 9, 9, 1, 5, 2, 8, 4, 5, 4, 4, 0, 8...
[ "nonn", "cons" ]
A320788
[ 1, 1, 3, 5, 10, 16, 29, 44, 72, 110, 169, 250, 373, 538, 778, 1104, 1559, 2172, 3016, 4136, 5651, 7653, 10314, 13800, 18389, 24342, 32097, 42096, 54991, 71500, 92637, 119506, 153659, 196831, 251332, 319834, 405824, 513312, 647504, 814448,...
[ "nonn" ]
A040864
[ 29, 1, 8, 1, 58, 1, 8, 1, 58, 1, 8, 1, 58, 1, 8, 1, 58, 1, 8, 1, 58, 1, 8, 1, 58, 1, 8, 1, 58, 1, 8, 1, 58, 1, 8, 1, 58, 1, 8, 1, 58, 1, 8, 1, 58, 1, 8, 1, 58, 1, 8, 1, 58, 1, 8, 1, 58, 1, 8, 1, 5...
[ "nonn", "cofr", "easy", "mult" ]
A138657
[ 5, 31, 89, 109, 271, 331, 571, 599, 661, 709, 719, 761, 859, 1109, 1171, 1319, 1489, 1619, 1699, 1811, 2399, 2971, 3041, 3119, 3329, 3449, 3659, 4211, 4421, 4861, 5051, 5309, 5441, 6011, 6379, 6491, 6571, 6661, 7039 ]
[ "nonn" ]
A094124
[ 3, 7, 5, 3, 7, 5, 3, 43, 13, 11, 19, 7, 5, 3, 11, 179, 7, 5, 3, 19, 17, 23, 13, 11, 17, 7, 5, 3, 373, 7, 5, 3, 17, 41, 13, 11, 53, 7, 5, 3, 97, 43, 23, 103, 19, 17, 97, 13, 11, 79, 7, 5, 3, 19, 17, 67, 13...
[ "nonn" ]
A383017
[ 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 30, 31, 36, 37, 41, 42, 43, 47, 53, 59, 61, 64, 66, 67, 70, 71, 73, 78, 79, 83, 89, 97, 100, 101, 102, 103, 105, 107, 109, 110, 113, 114, 127, 130, 131, 137, 138, 139, 149, 151, 15...
[ "nonn" ]
A251684
[ 1, 2, 5, 16, 69, 426, 3947, 55612, 1177747, 36816650, 1676270109, 110202314208, 10408422663015, 1407329003121294, 271801891072128600, 74846096423770140000, 2.935130190268024e+22, 1.637421476828686e+25, 1.2985582377076993e+28, 1.4629438237685094e+31 ]
[ "nonn" ]
A158931
[ 45136, 36137, 10128, 14267, 12126, 4455, 10126, 11197, 5742, 15316, 17543, 8305, 5252, 5252, 12126, 3852, 3402, 2553, 4567, 11117, 8305, 11427, 6931, 1017, 3852, 11615, 1746, 3375, 6295, 3678, 5252, 2363, 5766, 5517, 1936, 5528, 2405, 8305, ...
[ "base", "nonn" ]
A314290
[ 1, 5, 12, 18, 23, 29, 32, 36, 45, 52, 57, 62, 66, 73, 81, 84, 86, 93, 102, 109, 114, 116, 121, 131, 136, 138, 143, 150, 159, 166, 168, 171, 179, 186, 190, 195, 200, 207, 216, 220, 223, 229, 234, 240, 247, 252, 257, 264, ...
[ "nonn" ]
A026270
[ 1, 2, 6, 15, 39, 102, 270, 721, 1941, 5262, 14354, 39372, 108528, 300482, 835278, 2330334, 6522882, 18313542, 51559506, 145530291, 411738723, 1167450066, 3316925794, 9441771081, 26923831029, 76901809810, 219992462862, 630245628681, 1808029517585 ]
[ "nonn" ]
A111662
[ 0, 0, 1, 2, 4, 9, 18, 36, 72, 144, 288, 576, 1152, 2304, 4610, 9220, 18440, 36882, 73764, 147528, 295056, 590112, 1180224, 2360450, 4720900, 9441800, 18883606, 37767212, 75534424, 151068852, 302137704, 604275408, 1208550818, 2417101636 ]
[ "nonn", "easy" ]
A225192
[ 0, 0, 1, 1, 0, 2, 1, 1, 1, 1, 0, 2, 0, 2, 1, 2, 0, 2, 1, 2, 1, 1, 0, 3, 0, 0, 1, 1, 0, 3, 1, 2, 1, 2, 1, 2, 1, 3, 0, 1, 1, 3, 0, 2, 2, 1, 0, 2, 1, 2, 1, 1, 1, 2, 1, 2, 2, 1, 0, 3, 0, 1, 1, 2...
[ "nonn" ]
A203532
[ 10, 168, 3315, 76608, 2661120, 113667840, 4311354600, 178738560000, 11178747740160, 791853627801600, 44783640216315000, 2693449157020877000, 246209683227475970000, 1.7126298576096298e+22, 1.2533928535895704e+24 ]
[ "nonn" ]
A209929
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1...
[ "nonn", "base", "less" ]
A184385
[ 6045233, 6248040, 6472317, 6736118, 7390644, 8382192 ]
[ "nonn" ]
A050042
[ 1, 2, 1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 25, 32, 40, 41, 43, 44, 46, 50, 55, 62, 70, 80, 91, 104, 118, 134, 154, 179, 211, 212, 214, 215, 217, 221, 226, 233, 241, 251, 262, 275, 289, 305, 325, 350, 382 ]
[ "nonn" ]
A015840
[ 1, 2, 3, 4, 7, 8, 12, 14, 19, 20, 21, 24, 27, 30, 32, 39, 52, 63, 84, 91, 102, 112, 117, 127, 129, 132, 135, 155, 165, 181, 200, 210, 252, 327, 348, 387, 403, 405, 410, 432, 452, 453, 456, 459, 475, 480, 532, 549, 592, ...
[ "nonn" ]
A323544
[ 0, 1, 8192, 2245338225, 1144394036019200, 2.577023355527588e+21, 1.341080444706812e+28, 1.726614019156689e+35, 4.548909593429214e+42, 2.348452405093819e+50 ]
[ "nonn" ]
A317288
[ 19391512145, 1367267690953, 57188581537971, 2006576231088264, 65823539327956910, 2066450841399035100, 63056350327027740000, 1.9004635946093838e+21, 5.708879467903718e+22, 1.7175192619289563e+24, 5.196600791837032e+25, 1.5864678245609627e+27 ]
[ "nonn" ]
A311418
[ 1, 4, 8, 12, 17, 21, 24, 31, 33, 37, 44, 44, 49, 55, 57, 66, 66, 69, 79, 78, 82, 87, 90, 101, 99, 103, 113, 110, 116, 120, 123, 136, 131, 136, 149, 143, 148, 153, 156, 171, 165, 168, 183, 177, 181, 186, 189, 205, 198, ...
[ "nonn" ]
A201155
[ 3, 6, 6, 11, 20, 11, 19, 56, 56, 19, 32, 140, 235, 140, 32, 53, 330, 860, 860, 330, 53, 87, 745, 2910, 4572, 2910, 745, 87, 142, 1634, 9287, 22183, 22183, 9287, 1634, 142, 231, 3504, 28452, 100362, 153796, 100362, 28452, 3504, 2...
[ "nonn", "tabl" ]
A048074
[ 0, 0, 0, 0, 2, 8, 12, 30, 63, 86, 182, 392, 560, 1270, 2800, 4070, 9020, 19595, 28679, 63518, 138866, 205478, 455966, 997640, 1485624, 3290520, 7201692, 10782222, 23878212, 52311408, 78678468, 174179258, 381766253, 576312440 ]
[ "nonn" ]
A047014
[ 1, 2, 3, 15, 61, 248, 990, 3898, 15296, 59916, 234410, 916837, 3586569, 14035072, 54948806, 215250063, 843689919, 3308882412, 12984859980, 50985319491, 200307492747, 787380113112, 3096686683833, 12185008608630 ]
[ "nonn" ]
A272495
[ 1, 6, 63, 560, 5922, 61992, 739662, 9086616, 122792670, 1741884144, 26631631026, 428931318816, 7362963616008, 132977285400960, 2538822785931432, 50863863365419100, 1070731366348427800, 23576426902769414000, 542918591829347800000, 1.3035693339696005e+22 ]
[ "nonn" ]
A200339
[ 1, 3, 0, 7, 4, 7, 7, 6, 0, 0, 3, 0, 1, 3, 4, 9, 9, 2, 1, 2, 1, 6, 9, 3, 5, 0, 7, 1, 6, 9, 0, 0, 4, 8, 0, 8, 8, 7, 0, 5, 5, 2, 7, 4, 6, 2, 2, 3, 6, 3, 7, 9, 4, 4, 8, 8, 6, 9, 2, 8, 5, 5, 9, 3...
[ "nonn", "cons" ]
A270698
[ 561, 1105, 1729, 1905, 2465, 3277, 4033, 4681, 6601, 8321, 8481, 10585, 12801, 15841, 16705, 18705, 25761, 29341, 30121, 33153, 34945, 41041, 46657, 49141, 52633, 62745, 65281, 74665, 75361, 80581, 85489, 87249, 88357, 104653, 113201, 115921, 1...
[ "nonn" ]
A196125
[ 1, 1, 5, 61, 1241, 35321, 1293565, 57977333, 3074915569, 188387127793, 13093624617781, 1018008272854189, 87546809210311760, 8251472362124225000, 845856237057331000000, 9.369594868429262e+22, 1.1153023640354668e+25, 1.4197860056959862e+27 ]
[ "nonn" ]
A267688
[ 1, 110, 11100, 1111010, 111110100, 11111101010, 1111111010100, 111111110101010, 11111111101010100, 1111111111010101000, 111111111110101010000, 1.111111111110101e+22, 1.1111111111110102e+24, 1.111111111111101e+26, 1.11111111111111e+28 ]
[ "nonn" ]
A068276
[ 1, 392, 5765144, 3181273031384, 65865666949993360000, 5.1166369594150205e+28, 1.491342760953091e+39, 1.6309389107494943e+51 ]
[ "nonn" ]
A154274
[ 2, 3, 17, 19, 71, 97, 127, 131, 139, 191, 193, 227, 229, 251, 281, 337, 349, 353, 389, 443, 503, 541, 557, 563, 571, 613, 659, 701, 719, 727, 743, 877, 911, 971, 1031, 1087, 1091, 1103, 1217, 1297, 1301, 1409, 1439, 1451, 1481, ...
[ "nonn" ]
A182796
[ 0, 0, 0, 6, 894839431299072, 2.669547726944484e+27, 3.4530615624035e+36, 3.2534816367748623e+43, 1.3865643738325095e+49, 7.192430858381049e+53 ]
[ "nonn", "easy" ]
A356732
[ 2, -1, 7, 5, 19, 13, 53, 11, 37, 23, -1, -1, -1, 61, 109, 107, 131, 257, 103, 101, 331, -1, 193, 1009, 1063, 1087, 1013, 1601, 1543, 1447, 9397, 1741, 10007, 10061, 10133, 10847, 11251, 10253, 17203, 10267, 47563, 100003, 100043, ...
[ "sign", "tabf", "base" ]
A188150
[ 0, 0, 104, 432, 972, 1712, 2652, 3792, 5132, 6672, 8412, 10352, 12492, 14832, 17372, 20112, 23052, 26192, 29532, 33072, 36812, 40752, 44892, 49232, 53772, 58512, 63452, 68592, 73932, 79472, 85212, 91152, 97292, 103632, 110172, 116912, 123852, ...
[ "nonn" ]
A269763
[ 450, 524160, 326697720, 170119348800, 81208264293720, 36821411380183680, 16136599337765507000, 6.90251804182914e+21, 2.8996101920685396e+24, 1.2010708989232432e+27, 4.919522529696009e+29 ]
[ "nonn" ]
A148024
[ 1, 1, 2, 3, 8, 17, 48, 122, 385, 1085, 3375, 10198, 33933, 108092, 360915, 1200813, 4160537, 14151588, 49403091, 173696887, 621438061, 2207940184, 7968530425, 29011615994, 106385931309, 389703992683, 1443181807466, 5383725194018, 20138557270914, 754597961828...
[ "nonn", "walk" ]
A269188
[ 16, 108, 708, 4476, 27684, 168252, 1008804, 5983164, 35170980, 205214268, 1189853604, 6861684156, 39384946596, 225136169532, 1282284719268, 7279841963964, 41210177357988, 232678853273148, 1310648830057380 ]
[ "nonn" ]
A351150
[ 1, 0, 1, 4, 17, 80, 433, 2724, 19489, 153536, 1301601, 11754084, 112802097, 1150079056, 12437130001, 142144768324, 1709041379393, 21522252928000, 282920962675905, 3873124754702660, 55125031662585420, 814541756986322200, 12477752083406754000, 197861190429889950000 ]
[ "nonn" ]
A287663
[ 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0...
[ "nonn", "easy" ]
A076922
[ 1, 2, 4, 6, 9, 15, 24, 28, 32, 36, 40, 45, 50, 55, 65, 90, 96, 102, 108, 114, 120, 126, 133, 140, 147, 154, 161, 175, 224, 232, 240, 248, 256, 264, 272, 280, 288, 297, 306, 315, 324, 333, 342, 351, 369, 450, 460, 470, 48...
[ "nonn" ]
A295685
[ 2, 1, 1, 1, 4, 6, 8, 13, 23, 37, 58, 94, 154, 249, 401, 649, 1052, 1702, 2752, 4453, 7207, 11661, 18866, 30526, 49394, 79921, 129313, 209233, 338548, 547782, 886328, 1434109, 2320439, 3754549, 6074986, 9829534, 15904522, 25734057, 41638577,...
[ "nonn", "easy" ]
A336090
[ 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 3, 1, 0, 3, 3, 2, 2, 3, 2, 3, 5, 2, 3, 3, 3, 3, 3, 1, 3, 6, 3, 8, 2, 5, 3, 6, 5, 5, 6, 6, 2, 6, 5, 6, 7, 6, 4, 3, 7, 9, 8, 7, 5, 8, 6, 7, 6, 5, 5, 7, 9, 1...
[ "nonn" ]
A297281
[ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 43, 44, 45, 46, 47, 48, 49, 50, 51, 57, 58, 59, 60, 61, 62, 63, 64, 71, 72, 73, 74, 75, 76, 77, 85, 86, 87, 88, 89, 90, 99, 100,...
[ "nonn", "base", "easy" ]
A191366
[ 0, 4, 4, 20, 59, 164, 544, 1730, 5471, 17765, 55050, 173906, 546893 ]
[ "nonn", "base", "more" ]
A179613
[ 1, 5, 3, 1, 1, 40, 5, 1, 1, 25, 2, 3, 1, 6, 2, 1, 1, 2, 1, 2, 1, 1, 1, 2, 2, 1, 7, 2, 7, 1, 1, 1, 2, 1, 1, 32, 4, 1, 6, 2, 1, 1, 1, 15, 1, 5, 1, 4, 1, 1, 1, 3, 1, 3, 7, 2, 7, 1, 1, 3, 31, 1, 3...
[ "nonn", "cofr" ]
A087483
[ 1, 2, 4, 6, 9, 13, 17, 22, 28, 34, 41, 49, 57, 66, 76, 86, 97, 109, 121, 134, 148, 162, 177, 193, 209, 226, 244, 262, 281, 301, 321, 342, 364, 386, 409, 433, 457, 482, 508, 534, 561, 589, 617, 646, 676, 706, 737, 769, 80...
[ "nonn", "easy" ]
A274826
[ 1, 2, 1, 4, 4, 1, 2, 4, 12, 12, 12, 6, 3, 12, 4, 12, 12, 12, 6, 3, 2, 4, 12, 24, 24, 24, 24, 24, 24, 168, 168, 168, 168, 840, 840, 280, 840, 840, 840, 280, 280, 280, 280, 280, 280, 840, 840, 840, 840, 840, 840, 840...
[ "nonn", "frac", "look" ]
A153574
[ 1, 2, 8, 64, 1024, 32647, 2077283, 263780971, 66847941821, 33808278361085, 34122529738063476, 68729763733145690000, 2.7627036350427846e+23 ]
[ "nonn" ]
A227522
[ -123, -221, -255, -311, 487, -561, 709, -1055, 1273, -1425, -1475, -1767, 1833, -1893, 2127, -2391, -2475, -2595, 2769, -2895, -3053, -3183, -3543, -3627, 3765, 3919, 4069, -4113, 4203, 4315, 4609, -4953, 5175, 5347, 5413, -5657, 6117, -6515,...
[ "sign", "easy" ]
A187375
[ 11193852, 468071656, 19778096074, 890680176554, 44626342857330, 2249136545376930, 115491075542848380, 6140557069347230000, 327266140289935100000, 1.7558955755265812e+22 ]
[ "nonn" ]
A283437
[ 1, 1, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 1, 1, 1, 1...
[ "nonn", "easy" ]
A062336
[ 7, 43, 59, 61, 149, 151, 167, 223, 239, 241, 257, 293, 313, 331, 347, 383, 419, 421, 491, 509, 563, 601, 617, 653, 743, 761, 941, 1033, 1049, 1051, 1123, 1193, 1213, 1229, 1231, 1283, 1303, 1319, 1321, 1373, 1409, 1427, 1481, 1553...
[ "nonn", "base", "easy" ]
A215070
[ 1, 1, 2, 4, 12, 40, 154, 660, 3114, 15930, 87645, 514851, 3211220, 21166029, 146849903, 1068808441, 8136559688, 64621235409, 534207882566 ]
[ "nonn" ]
A140605
[ 2, 3, 3, 4, 3, 5, 3, 5, 5, 5, 3, 6, 3, 5, 5, 7, 3, 7, 3, 7, 5, 5, 3, 7, 5, 5, 7, 7, 3, 7, 3, 9, 5, 5, 5, 8, 3, 5, 5, 9, 3, 7, 3, 7, 7, 5, 3, 11, 5, 7, 5, 7, 3, 8, 5, 9, 5, 5, 3, 11, 3, 5, 7, ...
[ "nonn" ]
A383550
[ 1, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 0, 2, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 3, 1, 3, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 4, 2, 6, 2, 4, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 5, 3, 10, 6, 10, 3, ...
[ "nonn", "tabl" ]
A254729
[ 1, 1, 2, 3, 4, 7, 11, 18, 29, 47, 76, 123, 199, 322, 521, 843, 1364, 2207, 3571, 5778, 9349, 15127, 24476, 39603, 64079, 103682, 167761, 271443, 439204, 710647, 1149851, 1860498, 3010349, 4870847, 7881196, 12752043, 20633239, 33385282, 5401...
[ "nonn", "easy" ]
A052080
[ 2, 4, 0, 10, 7, 0, 73, 46, 0, 56, 219, 0, 25, 60, 0, 52, 117, 0, 535, 172, 0 ]
[ "nonn", "base", "hard" ]
A334022
[ 2, 46351754, 102841142, 158071592, 667930085, 851043553, 1097409992, 1580045430, 1595193655, 1698842487, 1919035496, 1951958341, 2279249234, 2507918727, 2520080695, 2741951910, 3335769314, 3654512455, 3713106152, 4209598844, 4351540982, 4369408604, 4480814965 ]
[ "nonn" ]
A215704
[ 1, 1, 6, 27, 156, 1110, 8322, 70098, 646272, 6333336, 66712680, 745731360, 8780828328, 108873486072, 1413807287760, 19157627737080, 270460073295360, 3965693824244160, 60266513065134530, 947644484349584400, 15389579447794455000, 257702782790624600000 ]
[ "sign" ]
A314381
[ 1, 5, 8, 10, 12, 18, 22, 28, 29, 30, 34, 41, 45, 51, 52, 50, 55, 64, 69, 74, 74, 70, 76, 87, 93, 97, 95, 90, 97, 110, 117, 120, 116, 110, 118, 133, 141, 143, 137, 130, 139, 156, 165, 166, 158, 150, 160, 179, 189, 189 ]
[ "nonn" ]
A077572
[ 4, 8, 9, 44, 88, 99, 333, 444, 666, 888, 999, 4444, 8888, 9999, 44444, 88888, 99999, 333333, 444444, 666666, 777777, 888888, 999999, 4444444, 8888888, 9999999, 44444444, 88888888, 99999999, 111111111, 222222222, 333333333, 444444444 ]
[ "base", "easy", "nonn" ]
A006157
[ 1, 5, 28, 180, 1320, 10920, 100800, 1028160, 11491200, 139708800, 1836172800, 25945920000, 392302310400, 6320426112000, 108101081088000, 1956280854528000, 37347179950080000, 750144785854464000, 15813863053148160000, 349121438173347840000 ]
[ "nonn", "easy" ]
A110814
[ 1, -3, 1, 7, -4, 1, -15, 11, -5, 1, 31, -26, 16, -6, 1, -63, 57, -42, 22, -7, 1, 127, -120, 99, -64, 29, -8, 1, -255, 247, -219, 163, -93, 37, -9, 1, 511, -502, 466, -382, 256, -130, 46, -10, 1, -1023, 1013, -968, 848, ...
[ "easy", "sign", "tabl" ]