id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A010380
[ 0, 1, 4, 7, 9, 10, 13, 16 ]
[ "nonn", "fini", "full" ]
A341761
[ 0, 0, 1, 0, -1, 3, 0, 0, -3, 6, 0, -1, 1, -6, 10, 0, 2, -6, 4, -10, 15, 0, -2, 10, -18, 10, -15, 21, 0, 2, -12, 31, -41, 20, -21, 28, 0, -1, 11, -41, 76, -80, 35, -28, 36, 0, 2, -6, 37, -109, 161, -141, 56, -36, 45, 0, 0, 9, -29, 110, -251, 308, -231, 84, -45, 55 ]
[ "sign", "tabl" ]
A033954
[ 0, 7, 22, 45, 76, 115, 162, 217, 280, 351, 430, 517, 612, 715, 826, 945, 1072, 1207, 1350, 1501, 1660, 1827, 2002, 2185, 2376, 2575, 2782, 2997, 3220, 3451, 3690, 3937, 4192, 4455, 4726, 5005, 5292, 5587, 5890, 6201, 6520, 6847, 7182, 7525, 7876, 8235 ]
[ "nonn", "easy" ]
A256382
[ 10, 18, 29, 30, 42, 53, 61, 73, 78, 81, 89, 90, 91, 115, 119, 125, 137, 138, 162, 165, 173, 181, 198, 205, 209, 210, 213, 217, 222, 258, 263, 291, 295, 299, 305, 323, 325, 330, 331, 390, 399, 407, 411, 441, 449, 450, 462, 477, 485, 489, 493, 497, 501, 515, 523 ]
[ "nonn" ]
A159456
[ 144, 225, 256, 400, 441, 576, 576, 784, 1089, 1225, 1600, 1936, 2601, 2704, 3136, 3249, 5776, 5929, 7744, 7744, 8281, 15129, 16641, 17689, 21904, 23104, 29584, 34969, 40401, 43681, 53824, 71289, 71824, 90601, 118336, 182329, 239121, 287296 ]
[ "fini", "full", "nonn" ]
A128806
[ 1, 6, 14, 28, 42, 64, 88, 120, 146, 184, 224, 272, 316, 372, 428, 496, 546, 616, 688, 768, 844, 932, 1020, 1120, 1204, 1308, 1412, 1528, 1632, 1756, 1876, 2016, 2114, 2248, 2384, 2528, 2668, 2820, 2972, 3136, 3284, 3452, 3620, 3800, 3968, 4156, 4340 ]
[ "nonn" ]
A063336
[ -1, 87, 197, 305, 413, 525, 633, 741, 853, 961, 1069, 1179, 1289, 1397, 1509, 1615, 1725, 1835, 1945, 2051, 2165, 2271, 2381, 2489, 2601, 2707, 2821, 2925, 3037, 3145, 3257, 3361, 3477, 3581, 3693, 3799, 3913, 4017, 4133, 4235, 4349 ]
[ "sign" ]
A067356
[ 172, 206, 435, 542, 551, 575, 611, 626, 718, 759, 903, 955, 1102, 1238, 1495, 1711, 2009, 2379, 2385, 2482, 2572, 2815, 2874, 3018, 3103, 3222, 3225, 3802, 3899, 4055, 4335, 4342, 4430, 4439, 4545, 4682, 5154, 5183, 5467, 5594, 6036, 6058, 6202, 6231 ]
[ "easy", "nonn" ]
A341634
[ 101, 11, 2, 3, 41, 5, 23, 7, 181, 19, 251, 43, 127, 53, 281, 29, 541, 37, 83, 11551, 139, 47, 523, 1481, 157, 149, 12451, 67, 59, 283, 11177, 2551, 239, 1187, 1453, 79, 881, 257, 89, 1553, 2851, 199, 347, 563, 1483, 277, 14551, 1753, 269, 827, 853, 15551, 367 ]
[ "nonn", "base" ]
A221041
[ 1, 1897, 495329, 68933905, 10373626389, 1376083439034, 183738465400508 ]
[ "nonn" ]
A058557
[ 1, 4, 3, 16, 20, 48, 55, 108, 141, 248, 326, 516, 662, 1048, 1335, 2000, 2547, 3672, 4689, 6588, 8379, 11500, 14513, 19644, 24688, 32896, 41115, 53964, 67301, 87312, 108385, 139124, 171876, 218852, 269284, 339996, 416665, 522104, 637698, 793704, 965989, 1194888, 1448933, 1782800 ]
[ "nonn" ]
A015256
[ 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, 1, 1, 1, 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, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0 ]
[ "sign" ]
A040783
[ 28, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56, 2, 56 ]
[ "nonn", "cofr", "easy", "changed" ]
A008559
[ 2, 10, 1010, 1111110010, 1.0000100011101e+30 ]
[ "nonn", "base", "nice" ]
A167768
[ 1, 7, 31, 32, 2694, 131071, 50802031105 ]
[ "more", "nonn", "hard" ]
A011405
[ 1, 1, 9, 7, 9, 9, 3, 6, 9, 2, 7, 5, 6, 5, 5, 5, 9, 9, 9, 3, 8, 7, 7, 8, 3, 2, 7, 2, 0, 4, 7, 1, 4, 2, 5, 4, 0, 7, 7, 7, 5, 9, 4, 2, 8, 4, 5, 3, 7, 2, 2, 6, 8, 4, 2, 7, 3, 3, 3, 9, 2, 0, 7, 1, 7, 1, 3, 8, 0, 6, 6, 5, 5, 2, 6, 6, 1, 9, 8, 1, 8, 3, 7, 4, 8, 3, 0, 5, 6, 3, 3, 3, 9, 4, 0, 7, 8, 3, 0 ]
[ "nonn", "cons" ]
A210238
[ 1, 2, 1, 3, 6, 1, 4, 12, 6, 12, 1, 5, 20, 20, 30, 30, 20, 1, 6, 30, 30, 15, 60, 120, 20, 60, 90, 30, 1, 7, 42, 42, 42, 105, 210, 105, 245, 420, 140, 105, 210, 42, 1, 8, 56, 56, 224, 28, 336, 336, 280, 168, 168, 840, 420, 1120, 70, 1120, 560, 168, 420, 56, 1 ]
[ "nonn", "tabf" ]
A068722
[ 1, 35, 247, 925, 2501, 5551, 10795, 19097, 31465, 49051, 73151, 105205, 146797, 199655, 265651, 346801, 445265, 563347, 703495, 868301, 1060501, 1282975, 1538747, 1830985, 2163001, 2538251, 2960335, 3432997, 3960125, 4545751, 5194051, 5909345, 6696097, 7558915 ]
[ "nonn", "easy" ]
A023843
[ 2, 5, 4, 7, 7, 10, 8, 11, 9, 12, 12, 15, 15, 15, 14, 17, 15, 18, 15, 21, 19, 20, 18, 22, 19, 24, 24, 25, 25, 27, 24, 26, 25, 24, 24, 28, 25, 29, 27, 32, 27, 33, 27, 30, 34, 33, 31, 33, 32, 35, 34, 40, 37, 40, 38, 41, 37, 42, 39, 46, 42, 42, 38, 40, 39, 42, 38, 42, 42, 43, 44, 47, 44, 46, 45, 48, 49 ]
[ "nonn" ]
A001377
[ 2, 32896, 4.0297527320597595e+23, 4.8246703848881745e+75 ]
[ "nonn", "nice" ]
A102149
[ 1, 1, 2, 3, 5, 4, 4, 7, 12, 12, 11, 23, 23, 14, 46, 46, 18, 83, 83, 21, 147, 147, 24, 251, 251, 28, 422, 422, 30, 701, 701, 32, 1153, 1153, 34, 1886, 1886, 40, 3073, 3073, 43, 4999, 4999, 46, 8115, 8115, 48, 13160, 13160, 56, 21323, 21323, 55, 34539, 34539, 56 ]
[ "nonn" ]
A258223
[ 1, 1, 1, 2, 8, 3, 5, 69, 77, 15, 14, 692, 1749, 890, 105, 42, 8120, 41998, 41909, 12039, 945, 132, 110278, 1114808, 1944225, 1018865, 186594, 10395, 429, 1707965, 33058519, 94833341, 80595226, 25798856, 3260067, 135135, 1430, 29750636, 1093994697, 4979407614, 6439957299, 3201618970, 687652446, 63390060, 2027025 ]
[ "nonn", "tabl" ]
A322712
[ 5, 0, 7, 4, 2, 9, 8, 4, 5, 8, 4, 5, 7, 9, 5, 6, 9, 8, 0, 8, 8, 0, 5, 7, 0, 9, 4, 8, 3, 4, 2, 0, 1, 2, 0, 4, 5, 5, 1, 7, 9, 0, 8, 0, 3, 4, 5, 1, 5, 9, 0, 0, 4, 1, 2, 9, 9, 9, 9, 4, 0, 6, 0, 9, 2, 0, 9, 3, 2, 2, 5, 5, 3, 1, 1, 0, 8, 1, 0, 6, 4, 4, 5, 3, 7, 0, 5 ]
[ "nonn", "cons" ]
A016631
[ 2, 0, 7, 9, 4, 4, 1, 5, 4, 1, 6, 7, 9, 8, 3, 5, 9, 2, 8, 2, 5, 1, 6, 9, 6, 3, 6, 4, 3, 7, 4, 5, 2, 9, 7, 0, 4, 2, 2, 6, 5, 0, 0, 4, 0, 3, 0, 8, 0, 7, 6, 5, 7, 6, 2, 3, 6, 2, 0, 4, 0, 0, 2, 8, 4, 8, 0, 1, 8, 0, 8, 6, 5, 9, 0, 9, 0, 8, 4, 1, 4, 6, 8, 1, 7, 5, 8, 9, 9, 8, 0, 9, 8, 9, 2, 5, 6, 0, 6 ]
[ "nonn", "cons", "changed" ]
A313812
[ 1, 5, 10, 15, 22, 27, 33, 37, 42, 48, 52, 59, 64, 70, 75, 79, 85, 90, 96, 101, 107, 112, 117, 122, 127, 134, 138, 144, 149, 154, 160, 164, 171, 176, 181, 186, 191, 197, 202, 208, 213, 219, 223, 228, 234, 239, 246, 250, 256, 261 ]
[ "nonn" ]
A185231
[ 1, 2, 3, 5, 7, 13, 23, 43, 83, 163, 317, 631, 1259, 2503, 5003, 9973, 19937, 39869, 79699, 159389, 318751, 637499, 1274989, 2549951, 5099893, 10199767, 20399531, 40799041, 81598067, 163196129, 326392249, 652784471, 1305568919, 2611137817 ]
[ "nonn" ]
A319920
[ 2, 5, 13, 9, 1129, 29, 17, 651250309, 5, 13, 17, 29, 37, 16767128453, 41, 133981, 2236369, 61, 45293, 2.248114674571321e+22, 12041, 653, 51908348513173, 121, 11821, 779353 ]
[ "nonn", "hard" ]
A203360
[ 13, 547, 16538, 547897, 17631496, 572818585, 18550312526, 601393482628, 19489674499639, 631692508651393, 20473304776032756, 663554579452002700, 21506172950462296000, 697028243024982200000, 2.2591098951348605e+22 ]
[ "nonn" ]
A269716
[ 1, 5, 20, 88, 368, 1504, 6080, 24448, 98048, 392704, 1571840, 6289408, 25161728, 100655104, 402636800, 1610579968 ]
[ "nonn", "more" ]
A370043
[ 1, 10, 99, 971, 9461, 91959, 895518, 8775161, 86870264, 871650208, 8884142855, 92061370003, 969550433086, 10363557226896, 112215017274331, 1228207449471086, 13561137797537412, 150791851996365200, 1686274213530483000, 18945675318778307000, 213704510012147000000 ]
[ "nonn" ]
A027668
[ 2, 8, 1234, 121039421240 ]
[ "nonn", "hard", "more" ]
A007597
[ 11, 101, 181, 619, 16091, 18181, 19861, 61819, 116911, 119611, 160091, 169691, 191161, 196961, 686989, 688889, 1008001, 1068901, 1160911, 1180811, 1190611, 1191611, 1681891, 1690691, 1880881, 1881881, 1898681, 1908061, 1960961, 1990661, 6081809, 6100019, 6108019 ]
[ "base", "nonn" ]
A288472
[ 1, -82104, -181275671592, 1327007921039904, 1.6726528971891003e+22, -2.122924430573533e+26, -1.5286496818109507e+33, 2.7164473060529927e+37, 1.396874389129779e+44 ]
[ "sign", "frac" ]
A304552
[ 0, 0, 1, 112, 3375, 64000, 3730525, 695506456, 296474109632, 213878375483220, 277097671756733630, 698661245965852900000, 3.5719738037666285e+24, 3.663799706208384e+28 ]
[ "nonn", "more" ]
A134845
[ 32, 101, 448, 1001, 10004, 10001, 100004, 100001, 1000004, 1000001, 10000004, 10000001, 100000004, 100000001, 1000000004, 1000000001 ]
[ "nonn", "base" ]
A209193
[ 23, 47, 59, 83, 167, 839, 2099, 5879, 6719, 23099, 27299, 180179, 414959, 420419, 628319, 660659, 840839, 1141139, 1681679, 2042039, 2277659, 4084079, 5525519, 5705699 ]
[ "nonn", "more" ]
A190751
[ 2, 4, 8, 10, 13, 18, 21, 24, 27, 29, 34, 38, 42, 44, 47, 51, 54, 58, 61, 63, 66, 70, 74, 78, 80, 84, 87, 91, 94, 97, 100, 104, 107, 111, 114, 118, 120, 125, 127, 129, 134, 136, 141, 143, 147, 150, 154, 158, 161, 163, 167, 170, 175, 177, 180, 184, 187, 191, 194, 197, 200, 203, 206, 211, 213, 217, 220, 224, 227, 231, 234, 237, 240, 243 ]
[ "nonn" ]
A166089
[ 1, 3, 5, 11, 13, 19, 21, 415, 29, 91, 61, 43, 105, 51, 53, 67, 249, 27, 133, 211, 45, 491, 141, 463, 101, 227, 221, 163, 237, 75, 173, 451, 99, 347, 285, 823, 197, 123, 117, 203, 397, 283, 269, 403, 297, 307, 669, 651, 317, 375, 207, 323, 357, 267, 381, 435 ]
[ "nonn" ]
A294328
[ 0, 2, 32, 432, 5432, 65432, 765432, 8765432, 98765432, 1098765432, 12098765432, 132098765432, 1432098765432, 15432098765432, 165432098765432, 1765432098765432, 18765432098765430, 198765432098765440, 2098765432098765300, 22098765432098767000 ]
[ "nonn", "easy" ]
A251176
[ 1, 1, 1, 1, 4, 10, 19, 49, 154, 415, 1066, 3322, 10639, 31279, 96751, 326908, 1082065, 3514285, 12068659, 42713311, 148480885, 523469791, 1915394458, 7043990266, 25840482346, 96913386589, 370304345755, 1415830556098, 5458805003308, 21434092603255, 84865526136793, 337266100883830 ]
[ "nonn" ]
A141954
[ 37, 199, 307, 523, 577, 631, 739, 1009, 1063, 1117, 1171, 1279, 1549, 1657, 1873, 2089, 2143, 2251, 2467, 2521, 2683, 2791, 2953, 3061, 3169, 3331, 3547, 3709, 4357, 4519, 4789, 4951, 5059, 5113, 5167, 5437, 5653, 5869, 5923, 6247, 6301, 6571, 6679, 6733 ]
[ "nonn", "easy" ]
A177073
[ 20, 182, 506, 992, 1640, 2450, 3422, 4556, 5852, 7310, 8930, 10712, 12656, 14762, 17030, 19460, 22052, 24806, 27722, 30800, 34040, 37442, 41006, 44732, 48620, 52670, 56882, 61256, 65792, 70490, 75350, 80372, 85556, 90902, 96410, 102080, 107912, 113906, 120062 ]
[ "nonn", "easy" ]
A015024
[ 1, -1, 0, 0, 0, 1, -1, 1, -1, 0, 1, -1, 1, -1, 1, 0, -1, 1, -1, 1, 0, 0, 0, -1, 1, 0, 0, 0, 0, 1, -1, 0, 0, 0, 1, -1, 1, -1, 0, 1, -1, 1, -1, 1, 0, -1, 1, -1, 1, 0, 0, 0, -1, 1, 0, 0, 0, 0, 1, -1, 0, 0, 0, 1, -1, 1, -1, 0, 1, -1, 1, -1, 1, 0, -1, 1, -1, 1, 0, 0, 0 ]
[ "sign" ]
A198892
[ 1, 1, 2, 9, 48, 300, 2280, 20580, 211680, 2434320, 31134600, 438807600, 6744276000, 112237725600, 2011760150400, 38639999197800, 791610365145600, 17230493212732800, 397111119429024000, 9660782144094681000, 247393077222459180000, 6.651976858409614e+21 ]
[ "nonn" ]
A198887
[ 1, 1, 3, 28, 269, 5056, 84247, 2400448, 57253849, 2191568896, 68151324491, 3278448139264, 125802549088933, 7291045162516480, 332950230966532800, 22581201334925050000, 1.1961225955305545e+21, 9.293437146454935e+22, 5.602230959364893e+24 ]
[ "nonn" ]
A236940
[ 3, 13, 19, 43, 79, 109, 313, 379, 613, 709, 1171, 1213, 1399, 1543, 1693, 1759, 1861, 1933, 2089, 2239, 2341, 2371, 2503, 2521, 2731, 2749, 3001, 3061, 3229, 3433, 3571, 3739, 3769, 4219, 4801, 4933, 4951, 4993, 5011, 5023, 5209, 5281 ]
[ "nonn" ]
A211466
[ 25, 33, 45, 65, 97, 149, 233, 369, 589, 945, 1521, 2453, 3961, 6401, 10349, 16737, 27073, 43797, 70857, 114641, 185485, 300113, 485585, 785685, 1271257, 2056929, 3328173, 5385089, 8713249, 14098325, 22811561, 36909873, 59721421, 96631281 ]
[ "nonn" ]
A234496
[ 5368636, 130537496, 3122368992, 78343976876, 1903351845712, 48536967979768, 1192684325401686, 30927279276836584, 768812747956709100 ]
[ "nonn" ]
A311857
[ 1, 4, 8, 13, 17, 21, 26, 31, 35, 39, 42, 47, 52, 55, 59, 65, 70, 74, 79, 80, 86, 91, 93, 97, 104, 109, 112, 119, 119, 125, 130, 131, 135, 143, 148, 150, 158, 158, 165, 169, 169, 173, 182, 187, 188, 197, 196, 205, 209, 207 ]
[ "nonn" ]
A254000
[ 0, 1, 17210368, 52521875, 60466176, 205962976 ]
[ "nonn", "fini", "full", "base" ]
A007371
[ 12, 18, 31, 32, 54, 56, 80, 98, 104, 108, 114, 124, 126, 128, 132, 140, 152, 156, 182, 186, 210, 264, 272, 280, 308, 320, 342, 378, 390, 392, 399, 403, 408, 416, 440, 444, 448, 492, 522, 532, 570, 572, 594, 608, 630, 632, 726, 762, 770, 774, 780, 784, 800 ]
[ "nonn" ]
A195055
[ 3, 2, 8, 9, 8, 6, 8, 1, 3, 3, 6, 9, 6, 4, 5, 2, 8, 7, 2, 9, 4, 4, 8, 3, 0, 3, 3, 3, 2, 9, 2, 0, 5, 0, 3, 7, 8, 4, 3, 7, 8, 9, 9, 8, 0, 2, 4, 1, 3, 5, 9, 6, 8, 7, 5, 4, 7, 1, 1, 1, 6, 4, 5, 8, 7, 4, 0, 0, 1, 4, 9, 4, 0, 8, 0, 6, 4, 0, 1, 7, 4, 7, 6, 6, 7, 2, 5, 7, 8, 0, 1, 2, 3, 9, 5, 1, 7, 4, 1, 0, 6, 0, 8, 0, 0 ]
[ "nonn", "cons" ]
A109214
[ 1, 2, 2, 4, 8, 32, 256, 5888, 3838976, 34109301760, 231888097227054080, 1.5560596019114493e+27, 1.2518611967947775e+44, 5.550746679608363e+70 ]
[ "base", "nonn" ]
A305856
[ 1, 2, 4, 14, 124, 14992, 1289845584 ]
[ "nonn", "more" ]
A128840
[ 7, 15, 22, 59, 81, 1031, 1112, 3255, 10877, 14132, 81537, 95669, 177206, 272875, 722956, 3164699, 7052354, 45478823, 98010000 ]
[ "frac", "nonn", "base" ]
A011895
[ 0, 0, 0, 0, 1, 4, 9, 16, 25, 38, 55, 76, 101, 132, 168, 210, 258, 313, 376, 447, 526, 613, 710, 817, 934, 1061, 1200, 1350, 1512, 1686, 1873, 2074, 2289, 2518, 2761, 3020, 3295, 3586, 3893, 4218, 4560, 4920, 5298, 5695, 6112, 6549, 7006, 7483 ]
[ "nonn", "easy" ]
A369126
[ 1, 4, 22, 140, 970, 7104, 54096, 424008, 3398224, 27721024, 229410328, 1921308272, 16253502512, 138683973120, 1192142838656, 10314377770720, 89749921081280, 784913791336192, 6895599255571840, 60825440855493380, 538507243041624800, 4783482648574893000 ]
[ "nonn" ]
A243917
[ 1, 2, 0, 1, 2, 2, 2, 2, 1, 4, 2, 1, 2, 4, 1, 3, 2, 4, 2, 4, 2, 4, 2, 2, 3, 4, 2, 4, 2, 5, 2, 4, 2, 4, 2, 4, 2, 4, 2, 4, 2, 6, 2, 4, 3, 4, 2, 4, 3, 6, 2, 4, 2, 6, 4, 6, 2, 4, 2, 4, 2, 4, 2, 5, 4, 6, 2, 4, 2, 6, 2, 6, 2, 4, 3, 4, 4, 6, 2, 6, 3, 4, 2, 5, 4, 4, 2, 6, 2, 9, 4, 4, 2, 4, 4, 6 ]
[ "nonn" ]
A185155
[ 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 3, 2, 3, 1, 1, 1, 1, 3, 2, 3, 1, 1, 1, 1, 4, 3, 2, 3, 4, 1, 1, 6, 6, 1, 1, 4, 3, 2, 3, 4, 1, 1, 8, 8, 1, 1, 4, 3, 2, 3, 4, 1, 1, 6, 6, 1, 1, 4, 3, 2, 3, 4, 1, 1 ]
[ "nonn", "tabf", "more" ]
A322342
[ 1, 1, 1, 8, 16, 224, 1328, 8280, 192960, 337992, 33969672, 11690832, 7909754400, -2553028752, 2357881048560, 3942533549568, 661635400722048, 13397372969553792, -107825500036658300, 22964754191590790000, -572404186520543900000, 3.147278617943621e+22, -8.869730464966422e+23 ]
[ "sign" ]
A113883
[ 4, 6, 16, 31, 33, 49, 84 ]
[ "easy", "nonn" ]
A172823
[ 0, 6, 587295, 2449665403360, 150313945957168050000, 8.99714744296934e+28, 3.88914772864933e+38, 9.645840692950034e+48 ]
[ "nonn" ]
A077184
[ 0, 2, 0, 2, 14, 15, 9, 5, 16, 4, 25, 21, 40, 67, 78, 66, 25, 111, 161, 49, 30, 15, 27, 20, 63, 98, 102, 3, 99, 92, 296, 71, 22, 367, 4, 48, 50, 91, 45, 241, 137, 258, 23, 28, 212, 40, 96, 408, 456, 110 ]
[ "dead" ]
A230543
[ 512, 1203, 3456, 6336, 23328, 42768, 157464, 249753, 288684, 400000, 722718, 1062882, 1948617, 2700000, 4950000, 18225000, 33412500, 105413504, 123018750, 225534375, 312500000, 408918816 ]
[ "nonn", "more" ]
A293359
[ 7, 14, 29, 59, 118, 236, 472, 945, 1891, 3783, 7566, 15132, 30265, 60531, 121062, 242124, 484249, 968498, 1936996, 3873993, 7747986, 15495973, 30991947, 61983895, 123967790, 247935580, 495871160, 991742321, 1983484643, 3966969286, 7933938573, 15867877146 ]
[ "nonn", "easy" ]
A385021
[ 2, 5, 10, 17, 27, 36, 52, 65, 78, 103, 119, 132, 181, 207, 208, 259, 308, 285, 329, 374, 379, 433, 559, 491, 616, 681, 689, 714, 605, 808, 906, 1013, 936, 1101, 1165, 926, 1357, 984, 1411, 1415, 1516, 1389, 1838, 1326, 1813, 1862, 1719, 1459, 2444, 2395, 2328 ]
[ "nonn" ]
A149693
[ 1, 1, 5, 17, 67, 273, 1145, 4967, 21943, 96751, 436505, 1977233, 9047955, 41693525, 192513737, 895929351, 4183745769, 19611361947, 92301890711, 435182661003, 2059689321377, 9770045609787, 46443467073279, 221318997448407, 1056137023844483, 5051057513533125, 24194180408832550, 116053856560913890 ]
[ "nonn", "walk" ]
A373704
[ 2526, 173, 5, 1, 17, 11, 89, 1049, 111539, 213341, 54848527 ]
[ "nonn", "hard", "more" ]
A364584
[ 1, 5, 25, 45, 441, 225, 5103, 585, 1575, 2205, 35721, 2925, 194481, 25515, 11025, 9945, 2893401, 17325, 2711943423, 28665, 127575, 178605, 480249, 45045, 275625, 972405, 121275, 266805, 18983603961, 143325, 1441237924662543, 135135, 893025, 14467005, 3189375, 225225 ]
[ "nonn" ]
A297745
[ 4, 37, 174, 852, 5396, 29773, 162828, 945314, 5347977, 30133308, 171973424, 977160855, 5545471514, 31555267875, 179438125871, 1020048459286, 5801865031579, 32997308834050, 187654134511476, 1067303125037252 ]
[ "nonn" ]
A166404
[ 0, 1, 2, 3, 6, 5, 4, 7, 14, 13, 10, 11, 12, 9, 8, 15, 30, 29, 26, 27, 22, 21, 20, 23, 28, 25, 18, 19, 24, 17, 16, 31, 62, 61, 58, 59, 54, 53, 52, 55, 46, 45, 42, 43, 44, 41, 40, 47, 60, 57, 50, 51, 38, 37, 36, 39, 56, 49, 34, 35, 48, 33, 32, 63, 126, 125, 122, 123, 118, 117 ]
[ "nonn", "base" ]
A211352
[ 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 2, 2, 3, 1, 2, 1, 1, 3, 4, 9, 3, 10, 1, 5, 3, 3, 1, 1, 3, 5, 15, 5, 30, 3, 15, 15, 10, 1, 15, 3, 5, 1, 1, 4, 7, 29, 10, 70, 7, 56, 54, 37, 4, 105, 21, 35, 1, 18, 29, 37, 4, 7, 7, 1 ]
[ "tabf", "nonn" ]
A281159
[ 0, 0, 5, 18, 85, 346, 1388, 5454, 21171, 81250, 309019, 1166316, 4372916, 16300940, 60456037, 223201490, 820709441, 3006697550, 10978569420, 39965443098, 145083078903, 525337769138, 1897732902967, 6840395954992, 24606162295316 ]
[ "nonn" ]
A139261
[ 5, 5, 7, 5, 7, 7, 5, 7, 7, 2, 5, 7, 7, 2, 1, 5, 7, 7, 2, 1, 5, 5, 7, 7, 2, 1, 5, 6, 5, 7, 7, 2, 1, 5, 6, 6, 5, 7, 7, 2, 1, 5, 6, 6, 4, 5, 7, 7, 2, 1, 5, 6, 6, 4, 9, 5, 7, 7, 2, 1, 5, 6, 6, 4, 9, 0, 5, 7, 7, 2, 1, 5, 6, 6, 4, 9, 0, 1 ]
[ "easy", "nonn", "tabl", "base" ]
A284961
[ 1, 525, 3500, 15750, 15624, 10500, 36000, 31500, 0, 12600 ]
[ "nonn", "fini", "full" ]
A196536
[ 1, 23, 555, 340286, 1202209625, 40385639042743, 11727457709816828000 ]
[ "nonn" ]
A113823
[ 0, 2, 3, 7, 13, 29, 53, 97, 181, 337, 617, 1151, 2111, 3881, 7151, 13147, 24181, 44483, 81817, 150497, 276817, 509137, 936469, 1722431, 3168097, 5827001, 10717561, 19712669, 36257237, 66687469, 122657377, 225602099, 414946951, 763206467, 1403755531, 2581909003 ]
[ "easy", "nonn" ]
A243988
[ 1, 2, 5, 10, 21, 42, 85, 169, 333, 655, 1286, 2519, 4935, 9675, 18982, 37285, 73346, 144509, 285158, 563546, 1115309, 2210243, 4385443, 8710876, 17319387, 34464792, 68634821, 136771603, 272703704, 543995341, 1085620097, 2167267262, 4327886353, 8644663133, 17270784312, 34510656589, 68969830833 ]
[ "nonn" ]
A103912
[ 20382, 409331, 588060, 718919, 892113, 1583347, 1680668, 2909044, 4104093, 4335628, 4589071, 4910417, 5167262, 5227231, 5276556, 5667695, 6228570, 7874791, 8307560, 8923874, 9004943, 9098100, 9616214, 9792649, 10374603, 12293364, 12884611, 13450210, 13798661, 13877345 ]
[ "nonn" ]
A366628
[ 2, 2, 2, 4, 2, 8, 8, 12, 4, 8, 8, 4, 4, 16, 8, 32, 8, 8, 64, 8, 8, 48, 16, 8, 16, 16, 16, 32, 32, 16, 512, 4, 8, 64, 8, 1536, 32, 16, 8, 512, 32, 16, 128, 4, 8, 128, 32, 4, 128, 64, 64, 256, 16, 32, 1024, 192, 64, 128, 8, 4, 64, 8, 4, 768, 8, 256, 2048, 32, 32 ]
[ "nonn" ]
A042749
[ 1, 12, 721, 8664, 520561, 6255396, 375844321, 4516387248, 271359079201, 3260825337660, 195920879338801, 2354311377403272, 141454603523535120, 1699809553659824600, 102130027823113010000, 1.227260143431016e+21, 7.373773863368408e+22 ]
[ "nonn", "frac", "easy" ]
A000561
[ 6, 44, 145, 336, 644, 1096, 1719, 2540, 3586, 4884, 6461, 8344, 10560, 13136, 16099, 19476, 23294, 27580, 32361, 37664, 43516, 49944, 56975, 64636, 72954, 81956, 91669, 102120, 113336, 125344, 138171, 151844, 166390, 181836, 198209, 215536, 233844, 253160, 273511, 294924, 317426, 341044 ]
[ "nonn", "easy" ]
A342628
[ 1, 2, 2, 6, 2, 45, 2, 322, 731, 3383, 2, 132901, 2, 827641, 10297068, 33570818, 2, 2578617270, 2, 44812807567, 678610493340, 285312719189, 2, 393061010002613, 95367431640627, 302875123369471, 150094917726535600, 569939345952661570, 2, 105474306078445360000, 2 ]
[ "nonn" ]
A074263
[ 2, 8, 11, 18, 26, 35, 38, 44, 53, 56, 62, 65, 74, 80, 83, 89, 92, 99, 107, 110, 119, 126, 135, 138, 144, 150, 153, 162, 165, 171, 180, 188, 197, 203, 206, 212, 215, 224, 231, 234, 242, 249, 258, 261, 269, 278, 281, 287, 296, 299, 305, 308, 314, 317, 324, 332 ]
[ "nonn", "easy" ]
A319285
[ 1, 2, 9, 69, 619, 7739, 109855, 1898230 ]
[ "nonn", "more" ]
A014104
[ 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 ]
[ "sign", "easy" ]
A383983
[ 1, 1, 3, 7, 24, 84, 334, 1330, 5495, 22776, 94920, 394706 ]
[ "nonn", "fini", "more" ]
A097987
[ 1, 2, 3, 4, 6, 7, 9, 11, 14, 18, 19, 22, 23, 27, 31, 38, 43, 46, 47, 49, 54, 59, 62, 67, 71, 79, 81, 83, 86, 94, 98, 103, 107, 118, 121, 127, 131, 134, 139, 142, 151, 158, 162, 163, 166, 167, 179, 191, 199, 206, 211, 214, 223, 227, 239, 242, 243, 251, 254, 262, 263, 271 ]
[ "nonn" ]
A213053
[ 2, 1, 7, 2, 3, 3, 6, 2, 8, 2, 1, 1, 2, 2, 1, 6, 5, 7, 4, 0, 8, 2, 7, 9, 3, 2, 5, 5, 6, 2, 4, 7, 0, 7, 3, 4, 2, 2, 3, 0, 4, 4, 9, 1, 5, 4, 3, 5, 5, 8, 7, 4, 8, 2, 3, 6, 5, 4, 4, 9, 0, 2, 7, 7, 1, 4, 5, 0, 5, 3, 4, 3, 5, 8, 9, 0, 6, 3, 2, 2, 9, 1, 8, 5, 5, 6, 8, 0, 5, 0, 6, 5, 3, 9, 2, 3, 5, 4, 9, 5, 1, 5, 2, 0, 1 ]
[ "nonn", "cons" ]
A136201
[ 0, 0, 0, 1, 2, 8, 18, 53, 124, 328, 780, 1969, 4718, 11648, 28014, 68405, 164824, 400240, 965304, 2337409, 5640122, 13637336, 32914794, 79525973, 191966740, 463636600, 1119239940, 2702647921, 6524535782, 15753313808, 38031163398 ]
[ "nonn", "easy" ]
A245353
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 7, 8, 9, 10, 11, 12, 13, 14, 15, 12, 13, 14, 15, 16, 17, 18, 19, 20, 15, 16, 17, 18, 19, 20, 21, 22, 23, 16, 17, 18, 19, 20, 21, 22, 23, 24, 23, 24, 25, 26, 27, 28, 29, 30, 31, 22, 23, 24, 25, 26, 27, 28, 29, 30, 27, 28, 29, 30, 31 ]
[ "nonn", "base", "easy" ]
A262569
[ 1, 1, 1, 2, 4, 8, 13, 24, 45, 82, 151, 282, 529, 992, 1872, 3542, 6720, 12788, 24385, 46600, 89241, 171197, 328960, 633102, 1220160, 2354688, 4549753, 8801162, 17043506, 33038208, 64103989, 124491776, 241969989, 470681348, 916259632, 1784921474, 3479467177, 6787108713, 13247128045, 25870861824, 50552258560, 98832505868 ]
[ "nonn" ]
A266669
[ 1, 0, 1, 1, 0, 1, 0, 0, 0, 1, 0, 1, 1, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0 ]
[ "nonn", "tabf", "easy" ]
A384361
[ 999500333083533, 529199358633911, 43582181444437, 294922982088079, 41089642444893, 284830972469031, 786870433805477, 40703079813759, 869103111377453, 156083179654551, 561556952003317, 315753873725039, 722319935785213, 518159379358471, 201897051493957, 715330849773919 ]
[ "nonn", "easy" ]
A133127
[ 1, 2, 4, 32, 122, 388, 1580, 2302, 3436, 3866, 16993, 35263, 42601, 51251 ]
[ "nonn", "base", "more" ]
A271312
[ 1, 111, 311, 13211, 111312211, 31131122211, 1321132132211, 1312211312111322000, 1.1131122211311123e+24, 3.113213221133112e+26, 1.3211312111322212e+38, 1.1131221131112311e+52 ]
[ "dead" ]
A369840
[ 1, 1, 2, 7, 23, 68, 194, 555, 1601, 4633, 13404, 38752, 112004, 323728, 935737, 2704817, 7818464, 22599701, 65325542, 188826693, 545813094, 1577700612, 4560424135, 13182138184, 38103641048, 110140512968, 318366757185, 920255312908, 2660044812499, 7688994894381 ]
[ "nonn" ]
A149340
[ 1, 1, 4, 12, 40, 154, 590, 2291, 9523, 39351, 164720, 711336, 3073150, 13376333, 59305585, 263251753, 1174914851, 5305026397, 23991323059, 108935348192, 498558014381, 2285348450639, 10508708646670, 48595333492782, 225057299921016, 1044912400895195, 4871739738152142, 22745133446781660 ]
[ "nonn", "walk" ]
A217082
[ 2, 19, 69, 88, 138, 155, 205, 234, 336, 420, 425, 455, 470, 525, 555, 561, 608, 626, 667, 674, 766, 779, 846, 851, 937, 971, 998, 1053, 1055, 1112, 1137, 1263, 1329, 1383, 1445, 1448, 1499, 1544, 1551, 1578, 1640, 1689, 1724, 1750, 1793, 1868, 2143, 2241, 2358 ]
[ "nonn", "easy" ]
A031994
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 17, 20, 21, 22, 23, 24, 25, 26, 30, 31, 32, 33, 34, 35, 40, 41, 42, 43 ]
[ "dead" ]