id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A382521
[ 1, 3, 0, 6, 3, 0, 10, 9, 3, 0, 15, 18, 15, 3, 0, 21, 30, 36, 18, 3, 0, 28, 45, 66, 55, 24, 3, 0, 36, 63, 105, 114, 81, 27, 3, 0, 45, 84, 153, 195, 189, 108, 33, 3, 0, 55, 108, 210, 298, 348, 276, 145, 36, 3, 0, 66, 135, 276, 423, 558, 552, 405, 180, 42, 3, 0, 78, 165, 351, 570, 819, 936, 858, 549, 225, 45, 3, 0 ]
[ "nonn", "tabl" ]
A103760
[ 1, 8, 1, 1, 1, 1, 1, 1, 1, 1, 4, 19, 19, 19, 19, 19, 19, 19, 16, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2 ]
[ "base", "easy", "nonn" ]
A047558
[ 1, 3, 6, 7, 9, 11, 14, 15, 17, 19, 22, 23, 25, 27, 30, 31, 33, 35, 38, 39, 41, 43, 46, 47, 49, 51, 54, 55, 57, 59, 62, 63, 65, 67, 70, 71, 73, 75, 78, 79, 81, 83, 86, 87, 89, 91, 94, 95, 97, 99, 102, 103, 105, 107, 110, 111, 113, 115, 118, 119, 121, 123, 126 ]
[ "nonn", "easy" ]
A123568
[ 31, 331, 3331, 33331, 333331, 3333331, 33333331, 333333333333333300, 3.333333333333333e+39, 3.333333333333333e+49 ]
[ "nonn" ]
A380469
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1 ]
[ "nonn" ]
A164475
[ 13, 20, 30, 44, 63, 90, 128, 180, 253, 356, 498, 696, 975, 1362, 1900, 2656, 3709, 5172, 7222, 10084, 14063, 19626, 27400, 38220, 53325, 74436, 103850, 144880, 202207, 282146, 393620, 549304, 766509, 1069396, 1492238, 2082332, 2905311, 4053882 ]
[ "nonn", "easy" ]
A128148
[ 2, 2929, 41459, 2352527, 144937, 1055, 1829903, 7316185805, 114491, 3146746271, 5028467, 20299, 69609309001, 129433, 15307006153, 2149705, 66469, 559182815, 18429503, 4529951, 7094711, 83591212702535, 1251548749, 38088889 ]
[ "hard", "nonn" ]
A020228
[ 9, 33, 91, 99, 153, 259, 303, 451, 481, 561, 657, 703, 909, 949, 1111, 1233, 1241, 1729, 1891, 2047, 2329, 2409, 2701, 2821, 2871, 2981, 3333, 3367, 4141, 4187, 4521, 5461, 5551, 6001, 6533, 6541, 6601, 6931, 7107, 7373, 7471, 7633, 7777, 8149, 8401, 8911 ]
[ "nonn" ]
A377182
[ 2, 3, 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 26, 27, 28, 30, 32, 25, 35, 40, 42, 44, 33, 55, 36, 38, 39, 34, 45, 46, 48, 50, 51, 52, 54, 56, 57, 58, 60, 62, 63, 64, 66, 68, 69, 70, 72, 49, 92, 98, 100, 102, 65, 74, 75, 76, 78, 80, 81, 82, 84, 86, 87, 88, 90, 77, 91, 99, 104, 105, 106, 108, 110, 93, 119, 120, 126, 85, 123, 125, 96, 116, 117, 118, 129, 130 ]
[ "nonn", "look" ]
A131805
[ 0, -1, 1, 0, 4, 3, 9, 8, 16, 15, 25, 24, 36, 35, 49, 48, 64, 63, 81, 80, 100, 99, 121, 120, 144, 143, 169, 168, 196, 195, 225, 224, 256, 255, 289, 288, 324, 323, 361, 360, 400, 399, 441, 440, 484, 483, 529, 528, 576, 575, 625, 624, 676, 675, 729, 728, 784, 783, 841 ]
[ "sign", "easy" ]
A116199
[ 1, 2, 2, 3, 2, 1, 2, 4, 3, 2, 2, 2, 2, 2, 2, 5, 2, 2, 2, 2, 4, 2, 2, 1, 3, 2, 4, 1, 2, 2, 2, 6, 2, 2, 4, 9, 2, 2, 4, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 6, 2, 2, 2, 1, 4, 2, 4, 2, 2, 2, 2, 2, 6, 7, 4, 2, 2, 2, 2, 4, 2, 4, 2, 2, 6, 2, 4, 2, 2, 2, 5, 2, 2, 2, 4, 2, 2, 2, 2, 2, 2, 2, 4, 2, 2, 1, 2, 6, 2, 9, 2, 2, 2, 2, 4 ]
[ "nonn" ]
A098965
[ 0, 1, 1, 1, 1, 2, 1, 2, 2, 2, 1, 5, 1, 3, 3, 5, 1, 7, 1, 8, 4, 6, 1, 15, 2, 9, 5, 14, 1, 22, 1, 20, 7, 18, 4, 36, 1, 26, 10, 40, 1, 51, 1, 48, 18, 49, 1, 86, 3, 73, 19, 86, 1, 117, 7, 120, 27, 120, 1, 196, 1, 160, 42, 201, 10, 259, 1, 258, 50, 292, 1, 407, 1, 357, 81, 431, 8, 548, 1, 577 ]
[ "easy", "nonn" ]
A026936
[ 1, 14, 131, 1028, 7333, 49362, 319943, 2020552, 12526153, 76603094, 463676491, 2784550604, 16619355501, 98706690714, 583943891087, 3443573355152, 20254044891793, 118871039217822, 696401860980499, 4073713439171732, 23799679604123188, 138895001298962780, 809854583626750100 ]
[ "nonn" ]
A065819
[ 7, 209, 10013, 11687, 12857, 17537, 27577, 28067, 700321, 770431, 1321189, 1542281, 1681861, 1963039, 2282641, 2313961, 2664259, 3308041, 3709057, 3859207, 3929761, 4315751, 4380541, 4561381, 5193001, 5331001, 5576519, 5962333, 6561511, 7332919, 10065991, 12133627, 13678613, 14313949, 15263831 ]
[ "nonn" ]
A024833
[ 5, 11, 19, 29, 41, 61, 79, 106, 129, 163, 191, 232, 265, 313, 365, 407, 466, 529, 579, 649, 723, 781, 862, 947, 1013, 1105, 1201, 1301, 1379, 1486, 1597, 1712, 1801, 1923, 2049, 2179, 2279, 2416, 2557, 2702, 2813, 2965, 3121, 3281, 3445, 3571, 3742, 3917, 4096 ]
[ "nonn" ]
A305938
[ 14, 11, 15, 11, 6, 12, 10, 7, 14, 21, 9, 9, 15, 8, 6, 10, 8, 13, 11, 13, 7, 10, 12, 8, 16, 10, 10, 10, 9, 14, 18, 11, 15, 12, 9, 9, 10, 17, 8, 12, 8, 12, 9, 8, 8, 12, 10, 17, 12, 6, 16 ]
[ "nonn", "base" ]
A115622
[ 1, 1, 2, 1, 1, 1, 3, 1, 1, 1, 2, 2, 1, 4, 1, 1, 1, 1, 1, 2, 1, 2, 1, 3, 1, 5, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 3, 1, 3, 2, 2, 4, 1, 6, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 3, 1, 2, 1, 2, 1, 2, 1, 1, 4, 1, 3, 1, 3, 2, 5, 1, 7, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 3, 1, 2, 1, 1, 1, 2, 1, 2, 1, 1, 4, 1, 2, 1, 2, 2, 2 ]
[ "nonn", "tabf" ]
A094093
[ 1, 2, 3, 4, 7, 9, 14, 19, 27, 39, 54, 74, 102, 140, 190, 256, 345, 461, 613, 812, 1071, 1407, 1843, 2404, 3125, 4051, 5234, 6743, 8663, 11099, 14184, 18081, 22994, 29174, 36934, 46656, 58817, 73999, 92918, 116456, 145690, 181941, 226822, 282304, 350787 ]
[ "nonn" ]
A123829
[ 1, 2, 44, 185, 3276, 15682, 282377, 1480410, 26264942 ]
[ "nonn" ]
A188575
[ 0, 1, 1, 4, 8, 14, 31, 63, 129, 248, 509, 1011, 2044, 4089, 8167, 16360, 32725, 65482, 131017, 262176, 524167, 1048678, 2096985, 4194358, 8387802, 16776408, 33550943, 67101615, 134199983, 268399122, 536793004, 1073590077, 2147187353, 4294419287, 8588940438 ]
[ "nonn" ]
A140168
[ 1, 2, 1, 4, 1, 1, 8, 3, 3, 1, 16, 5, 9, 2, 1, 32, 11, 23, 7, 4, 1, 64, 21, 57, 16, 15, 3, 1, 128, 43, 135, 41, 46, 12, 5, 1, 256, 85, 313, 94, 133, 34, 22, 4, 1, 512, 171, 711, 219, 360, 99, 78, 18, 6, 1, 1024, 341, 1593, 492, 939, 261, 255, 60, 30, 5, 1, 2048, 683, 3527, 1101 ]
[ "nonn", "tabl" ]
A228995
[ 0, 1, 34, 378, 3186, 25620, 214410, 1930080, 18881250, 200907060, 2318843370, 28914797640, 387867845250, 5573855579340, 85476008430090, 1393770581296320, 24086416578328290, 439832565550644900, 8463528886854858000, 171191360282164170000, 3.631513434281721e+21 ]
[ "nonn" ]
A132380
[ 0, 0, 1, 1, 0, 0, -1, -1, 0, 0, 1, 1, 0, 0, -1, -1, 0, 0, 1, 1, 0, 0, -1, -1, 0, 0, 1, 1, 0, 0, -1, -1, 0, 0, 1, 1, 0, 0, -1, -1, 0, 0, 1, 1, 0, 0, -1, -1, 0, 0, 1, 1, 0, 0, -1, -1, 0, 0, 1, 1, 0, 0, -1, -1, 0, 0, 1, 1, 0, 0, -1, -1, 0, 0, 1, 1, 0, 0, -1, -1, 0, 0, 1, 1, 0, 0, -1, -1 ]
[ "sign", "easy", "less" ]
A158602
[ 1, 41, 161, 361, 641, 1001, 1441, 1961, 2561, 3241, 4001, 4841, 5761, 6761, 7841, 9001, 10241, 11561, 12961, 14441, 16001, 17641, 19361, 21161, 23041, 25001, 27041, 29161, 31361, 33641, 36001, 38441, 40961, 43561, 46241, 49001, 51841, 54761, 57761, 60841, 64001 ]
[ "nonn", "easy" ]
A140360
[ 1, 0, 5, -5, 15, -25, 55, -105, 215, -425, 855, -1705, 3415, -6825, 13655, -27305, 54615, -109225, 218455, -436905, 873815, -1747625, 3495255, -6990505, 13981015, -27962025, 55924055, -111848105, 223696215, -447392425, 894784855, -1789569705, 3579139415 ]
[ "sign" ]
A005533
[ 1, 3, 1, 9, 5, 0, 7, 9, 1, 0, 7, 7, 2, 8, 9, 4, 2, 5, 9, 3, 7, 4, 0, 0, 1, 9, 7, 1, 2, 2, 9, 6, 4, 0, 1, 3, 3, 0, 3, 3, 4, 6, 9, 0, 1, 3, 1, 9, 3, 4, 1, 8, 6, 8, 1, 5, 0, 5, 8, 0, 7, 7, 9, 5, 9, 8, 0, 5, 3, 5, 9, 8, 0, 8, 9, 3, 5, 2, 0, 8, 3, 0, 0, 5, 0, 3, 5 ]
[ "cons", "nonn" ]
A207628
[ 1, 1, 4, 1, 6, 8, 1, 8, 20, 16, 1, 10, 36, 56, 32, 1, 12, 56, 128, 144, 64, 1, 14, 80, 240, 400, 352, 128, 1, 16, 108, 400, 880, 1152, 832, 256, 1, 18, 140, 616, 1680, 2912, 3136, 1920, 512, 1, 20, 176, 896, 2912, 6272, 8960, 8192, 4352, 1024, 1, 22, 216 ]
[ "nonn", "tabl" ]
A118119
[ 2, 5, 8, 6, 2, 4, 5, 2, 2, 10, 8, 6, 2, 3, 6, 14, 2, 37, 6, 2, 2, 10, 2, 6, 2, 2, 6, 10, 2, 52, 22, 2, 2, 4, 8, 26, 2, 3, 5, 5, 2, 24, 6, 2, 2, 32, 6, 4, 2, 2, 8, 5, 2, 6, 5, 4, 2, 230, 2, 44, 2, 2, 17, 4, 2, 55, 5, 2, 2, 34, 2, 9, 2, 3, 8, 4, 2, 6, 6, 2, 2, 2, 3 ]
[ "nonn" ]
A188994
[ 16, 256, 1793, 10812, 68064, 423606, 2613530, 16035624, 97883197, 595766564, 3617770796, 21938495472, 132905120076, 804648760664, 4869522949489, 29461013798230, 178208981945456, 1077853513894740, 6518619188201742 ]
[ "nonn" ]
A262196
[ 0, 1, 2, 6, 12, 25, 46, 88, 152, 267, 452, 764, 1260, 2049, 3314, 5272, 8354, 13077, 20366, 31302, 48048, 72849, 110244, 165354, 247194, 366703, 541802, 796066, 1164264, 1695201, 2457904, 3549244, 5104908, 7313739, 10437170, 14848936, 21041422, 29732907 ]
[ "nonn" ]
A140784
[ 14, 55, 35, 6, 46, 15, 26, 437, 146, 237, 95, 1082, 818, 597, 1603, 2705, 2078, 4511, 1418, 2681, 14545, 13863, 37551, 6559, 16053, 55805, 26707, 17965, 308918, 32777, 41222, 35103, 393565, 219509, 153263, 87627, 2263057, 35981, 1789339, 741841 ]
[ "nonn" ]
A247287
[ 0, 0, 1, 4, 13, 38, 108, 304, 857, 2426, 6902, 19728, 56622, 163092, 471205, 1365008, 3963321, 11530786, 33607190, 98105616, 286795300, 839470664, 2460038427, 7216652488, 21190820678, 62279238828, 183185851903, 539220930004, 1588341106957, 4681678922366, 13807691805836 ]
[ "nonn" ]
A178291
[ 0, 0, 0, 0, 2687088, 79355392, 1008580720, 7955368960, 55993694000, 284540909568, 1291577484720, 4756123165696 ]
[ "nonn" ]
A151998
[ 0, 0, 0, 1, 2, 7, 15, 35, 75, 163, 337, 709, 1458, 3001, 6135, 12529, 25468, 51739, 104829, 212205, 428916, 866215, 1747527, 3523213, 7097895, 14291683, 28760643, 57852469, 116321445, 233798623, 469761015, 943591237, 1894836585, 3804113881, 7635493643 ]
[ "nonn" ]
A327533
[ 1, 1, 2, 1, 3, 1, 2, 1, 1, 5, 1, 2, 1, 4, 1, 2, 2, 7, 1, 1, 1, 3, 1, 4, 1, 2, 1, 1, 7, 1, 1, 2, 1, 1, 4, 1, 5, 1, 11, 2, 2, 1, 2, 6, 1, 1, 2, 1, 1, 7, 1, 3, 1, 1, 4, 3, 2, 1, 1, 1, 12, 1, 1, 3, 2, 4, 1, 1, 3, 2, 7, 1, 2, 1, 1, 10, 1, 1, 2, 1, 15, 1, 5, 1, 1, 4 ]
[ "nonn" ]
A071281
[ 0, 0, 0, 1, 1, 2, 2, 3, 1, 4, 3, 5, 4, 6, 2, 7, 5, 8, 6, 9, 3, 10, 7, 11, 8, 12, 4, 13, 9, 14, 10, 15, 5, 16, 11, 17, 12, 18, 6, 19, 13, 20, 14, 21, 7, 22, 15, 23, 16, 24, 8, 25, 17, 26, 18, 27, 9, 28, 19, 29, 20, 30, 10, 31, 21, 32, 22, 33, 11, 34, 23, 35, 24, 36, 12, 37, 25, 38 ]
[ "nonn", "frac", "easy" ]
A278586
[ 1, 3, 5, 8, 11, 14, 17, 21, 24, 28, 32, 36, 40, 44, 49, 53, 57, 62, 66, 71, 75, 80, 84, 90, 94, 99, 103, 109, 113, 118, 123, 128, 133, 139, 143, 149, 154, 159, 164, 170, 175, 180, 185, 191, 196, 201, 207, 212, 217, 223, 229, 234, 240, 246, 251, 256, 262, 268, 273, 279, 284, 290, 296, 302, 308 ]
[ "nonn", "easy" ]
A289231
[ 0, 4, 159, 1644, 9548, 38872, 125367, 342831, 829052, 1822785, 3714519, 7113539, 12935256, 22511616, 37728563, 61194888, 96446684, 148191316, 222597315, 327633979, 473466444, 672912717, 941968139, 1300402591, 1772439504, 2387521212, 3181168199, 4195941108, 5482512012 ]
[ "nonn", "easy" ]
A095321
[ 257, 521, 577, 641, 769, 1031, 1033, 1049, 1061, 1091, 1093, 1097, 1153, 1217, 1283, 1289, 1297, 1409, 1553, 1601, 2053, 2069, 2081, 2083, 2089, 2113, 2129, 2179, 2309, 2593, 2689, 3089, 3137, 3329, 4099, 4111, 4129, 4133, 4139, 4153 ]
[ "nonn", "base", "easy" ]
A242820
[ 1, 1, 2, 6, 24, 116, 4, 672, 48, 4536, 504, 34944, 5376, 302896, 59488, 496, 2916992, 697856, 13952, 30899616, 8720448, 296736, 357080064, 116109312, 5812224, 4470310976, 1645662912, 110697408, 349504, 60269056512, 24776769024, 2114735616, 17730048 ]
[ "nonn", "tabf" ]
A295727
[ -1, 1, 1, 1, 4, 3, 11, 10, 29, 31, 76, 91, 199, 258, 521, 715, 1364, 1951, 3571, 5266, 9349, 14103, 24476, 37555, 64079, 99586, 167761, 263251, 439204, 694263, 1149851, 1827730, 3010349, 4805311, 7881196, 12620971, 20633239, 33123138, 54018521, 86879515 ]
[ "easy", "sign" ]
A383208
[ 0, 0, 0, 1, 18, 245, 3120, 39697, 517790, 6999785, 98520060, 1445923149, 22129416210, 352932509085, 5859167661256, 101122879922313, 1811960841148774, 33662625853200336, 647550189266734500, 12881675626292023000, 264677402162135660000, 5.610552395871699e+21 ]
[ "nonn" ]
A330735
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 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, 21, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 0, 0, 0, 0, 3 ]
[ "nonn" ]
A353060
[ 1, 1, 3, 13, 15, 36, 39, 64 ]
[ "nonn", "more" ]
A358883
[ 5, 37, 313, 1253, 4977, 11253, 31393, 61409, 125525, 212785, 407757, 609361, 1059497, 1541005, 2328621, 3282329, 5006113, 6538721, 9545621, 12352197 ]
[ "nonn", "more" ]
A242718
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1 ]
[ "nonn", "fini", "full" ]
A061789
[ 4, 31, 3156, 826699, 285312497310, 303160419089563, 827240565046755900000, 1.9792468962253604e+24, 2.0880469979094806e+31, 2.5676861531820916e+42 ]
[ "nonn", "easy" ]
A151222
[ 1, 3, 13, 57, 265, 1249, 5985, 28921, 140769, 688451, 3380087, 16643697, 82146741, 406201851, 2011677275, 9975162381, 49514935929, 245999398831, 1223080149815, 6084867581499, 30288917519411, 150841365748097, 751509222633005, 3745439135070101, 18672679963259900, 93117178620432540 ]
[ "nonn", "walk" ]
A383688
[ 0, 1, 3, 2, 0, -3, 0, 4, 9, 4, 0, 6, 13, 21, 14, 8, 17, 27, 38, 28, 19, 11, 0, -12, -25, -39, -25, -12, 0, 15, 31, 48, 66, 48, 33, 17, 0, 19, 39, 60, 82, 105, 83, 64, 44, 23, 47, 72, 98, 125, 153, 126, 102, 79, 53, 28, 0, -29, -59, -90, -122, -155, -122, -92, -63, -31 ]
[ "sign" ]
A323102
[ 1, 2, 4, 8, 10, 14, 32, 43, 46, 58, 80, 163, 184, 227, 262, 361, 592, 602, 623, 638, 2287, 2680, 3674, 11221, 12278, 12556, 12763, 15412, 21472, 49118, 57040, 64825, 121262, 127495, 300604, 572623, 769828, 904000, 1693765, 2099716, 3757192 ]
[ "nonn", "more", "hard" ]
A330079
[ 1, 3, 9, 27, 75, 213, 585, 1623, 4425, 12123, 32883, 89415, 241557, 653649, 1760427, 4747005, 12754593, 34301463, 91990575, 246880023, 661075149, 1771199169, 4736741853, 12673587057, 33856816431, 90482953989, 241499070195, 644781165933, 1719559634451, 4587222964881, 12225165127887 ]
[ "nonn", "walk" ]
A169045
[ 1, 32, 992, 30752, 953312, 29552672, 916132832, 28400117792, 880403651552, 27292513198112, 846067909141472, 26228105183385630, 813071260684954600, 25205209081233592000, 781361481518241400000, 2.4222205927065483e+22 ]
[ "nonn" ]
A346281
[ 893604, 1117071, 1182534, 1414559, 1629244, 1933328, 2280543, 2586035, 2867074, 3050644, 3055295, 3055977, 3256432, 3329360, 3369543, 3436058, 3551890, 3576363, 3896969, 3914877, 3930849, 4055954, 4087746, 4088690, 4093572, 4096665, 4098161, 4104068, 4104310 ]
[ "nonn" ]
A000160
[ 1, 2, 8, 21, 48, 99, 186, 330, 556, 895, 1397, 2107, 3097, 4459, 6264, 8644, 11760, 15742, 20790, 27128, 34993, 44664, 56473, 70784, 87995, 108564, 132970, 161828, 195686, 235274, 281349, 334682, 396202, 466849, 547712, 639935, 744716, 863443 ]
[ "nonn" ]
A274493
[ 0, 1, 2, 3, 6, 13, 27, 57, 123, 267, 584, 1289, 2864, 6399, 14373, 32435, 73498, 167175, 381551, 873541, 2005622, 4616895, 10653607, 24638263, 57097885, 132575577, 308378460, 718506295, 1676706422, 3918515001, 9170350093, 21488961641, 50417138776, 118425429213, 278476687643 ]
[ "nonn", "easy" ]
A305808
[ 1, 2, 2, 5, 2, 8, 2, 12, 7, 12, 2, 22, 2, 16, 12, 28, 2, 30, 2, 34, 16, 24, 2, 56, 11, 28, 24, 46, 2, 56, 2, 64, 24, 36, 16, 87, 2, 40, 28, 88, 2, 76, 2, 70, 46, 48, 2, 136, 15, 70, 36, 82, 2, 108, 24, 120, 40, 60, 2, 172, 2, 64, 62, 144, 28, 116, 2, 106, 48, 108, 2, 228, 2, 76, 70, 118, 24, 136, 2, 216, 81, 84, 2, 236, 36, 88, 60, 184, 2, 228, 28 ]
[ "nonn" ]
A263685
[ 1, 1, 2, 9, 33, 192, 1272, 10182, 90822, 908160, 9980160, 119761980, 1556766780, 21794734080, 326918753280, 5230700053320, 88921859605320, 1600593472880640, 30411275148656640, 608225502973147900, 12772735543856347000, 281000181964839320000, 6.463004184741681e+21 ]
[ "nonn", "nice" ]
A197368
[ 1, 3, 32, 45, 189, 646, 1873, 6209, 19883, 62891, 201940, 644884, 2058462, 6580709, 21022103, 67159181, 214583759, 685563259, 2190314160, 6997940987, 22357818950, 71431546562, 228218559544, 729140737836, 2329549699706, 7442735684274 ]
[ "nonn" ]
A330030
[ 1, 1, 2, 3, 6, 30, 30, 42, 210, 42, 210, 2310, 2310, 30030, 30030, 30030, 30030, 39270, 510510, 1939938, 9699690, 9699690, 9699690, 17160990, 223092870, 903210, 223092870, 223092870, 223092870, 6469693230, 6469693230, 200560490130, 200560490130, 10555815270, 200560490130 ]
[ "nonn" ]
A364066
[ 1, 2, 4, 4, 6, 6, 10, 8, 10, 10, 15, 14, 14, 14, 20, 16, 20, 18, 28, 20, 22, 24, 30, 24, 26, 30, 40, 28, 30, 30, 40, 34, 39, 34, 48, 36, 44, 38, 50, 46, 42, 44, 58, 44, 46, 46, 74, 52, 50, 50, 68, 54, 54, 62, 70, 56, 66, 58, 82, 60, 76, 64, 80, 64, 66, 66, 97, 78, 70, 74, 90, 74, 74, 80, 114, 76, 88, 78, 100 ]
[ "nonn" ]
A038284
[ 1, 8, 6, 64, 96, 36, 512, 1152, 864, 216, 4096, 12288, 13824, 6912, 1296, 32768, 122880, 184320, 138240, 51840, 7776, 262144, 1179648, 2211840, 2211840, 1244160, 373248, 46656, 2097152, 11010048, 24772608, 30965760, 23224320 ]
[ "nonn", "tabl", "easy" ]
A185990
[ 4838, 462288, 24122605, 1458949494, 86146689788, 5140797159777, 306579200951455, 18279829286165896, 1090083256585651700, 65003967929716100000, 3.87636002855606e+21, 2.311573673029851e+23 ]
[ "nonn" ]
A056868
[ 6, 10, 12, 14, 18, 20, 21, 22, 24, 26, 28, 30, 34, 36, 38, 39, 40, 42, 44, 46, 48, 50, 52, 54, 55, 56, 57, 58, 60, 62, 63, 66, 68, 70, 72, 74, 75, 76, 78, 80, 82, 84, 86, 88, 90, 92, 93, 94, 96, 98, 100, 102, 104, 105, 106, 108, 110, 111, 112, 114, 116, 117, 118, 120 ]
[ "nonn", "nice", "easy" ]
A100775
[ 101, 198, 295, 392, 489, 586, 683, 780, 877, 974, 1071, 1168, 1265, 1362, 1459, 1556, 1653, 1750, 1847, 1944, 2041, 2138, 2235, 2332, 2429, 2526, 2623, 2720, 2817, 2914, 3011, 3108, 3205, 3302, 3399, 3496, 3593, 3690, 3787, 3884, 3981, 4078, 4175, 4272, 4369, 4466 ]
[ "nonn", "easy" ]
A041873
[ 1, 2, 5, 212, 429, 1070, 45369, 91808, 228985, 9709178, 19647341, 49003860, 2077809461, 4204622782, 10487055025, 444660933832, 899808922689, 2244278779210, 95159517649509, 192563314078228, 480286145805965, 20364581437928760, 41209449021663480 ]
[ "nonn", "frac", "easy" ]
A075507
[ 1, 1, 9, 89, 1009, 13457, 210105, 3747753, 74565473, 1628999841, 38704241897, 993034281593, 27340167242321, 803154583649329, 25050853217628310, 826165199464341800, 28707262835597620000, 1.0477317896710012e+21, 4.00537331526273e+22, 1.5999105541288248e+24 ]
[ "nonn", "easy", "eigen" ]
A192391
[ 1, 2, 3, 5, 8, 9, 12, 13, 14, 20, 21, 24, 26, 28, 30, 32, 34, 35, 38, 39, 46, 48, 51, 53, 55, 60, 67, 72, 74, 83, 85, 94, 102, 107, 111, 135, 154, 161, 162, 192, 200, 206, 221, 237, 254, 258, 277, 280, 283, 288, 301, 314 ]
[ "nonn" ]
A152519
[ 4, 6, 12, 16, 34, 38, 58, 62 ]
[ "nonn", "more" ]
A159868
[ 1, 8, -994, -24880, 2955916, 128939488, -14605279736, -935350107712, 100683900863120, 8722274518579328, -888933907869994000, -99393135669529250000, 9.550267734434756e+21, 1.3382973923358213e+24, -1.2064800328072907e+26, -2.078804500152402e+28 ]
[ "sign", "frac" ]
A297339
[ 4, 8, 22, 53, 134, 333, 833, 2078, 5190, 12956, 32349, 80764, 201645, 503445, 1256952, 3138228, 7835210, 19562153, 48840794, 121940721, 304449181, 760117722, 1897784554, 4738195288, 11829843673, 29535549464, 73741353337, 184109904521 ]
[ "nonn" ]
A193385
[ 1, 1, 2, 6, 27, 135, 810, 5670, 45465, 409185, 4091850, 45010350, 540134595, 7021749735, 98304496290, 1474567444350, 23593081136625, 401082379322625, 7219482827807250, 137170173728337740, 2743403475221484000 ]
[ "nonn" ]
A019950
[ 1, 2, 7, 9, 9, 4, 1, 6, 3, 2, 1, 9, 3, 0, 7, 8, 7, 8, 0, 3, 1, 1, 0, 2, 9, 8, 4, 7, 5, 7, 1, 9, 9, 1, 1, 9, 2, 1, 2, 3, 1, 5, 1, 8, 8, 5, 2, 7, 0, 4, 5, 9, 3, 8, 0, 7, 0, 0, 2, 9, 1, 0, 9, 6, 1, 4, 0, 4, 2, 2, 0, 1, 5, 7, 8, 2, 3, 3, 6, 3, 3, 9, 2, 8, 5, 8, 4, 2, 0, 4, 3, 8, 9, 2, 4, 4, 1, 2, 6 ]
[ "nonn", "cons" ]
A230866
[ 1, 1, 1, 2, 2, 1, 2, 2, 1, 2, 2, 1, 2, 3, 2, 2, 3, 2, 1, 2, 2, 1, 2, 2, 1, 2, 3, 2, 2, 3, 2, 1, 2, 2, 1, 2, 2, 1, 2, 3, 2, 2, 3, 2, 1, 2, 2, 1, 2, 2, 1, 2, 3, 2, 2, 3, 2, 1, 2, 2, 1, 2, 2, 2, 3, 3, 3, 3, 2, 2, 2, 1, 2, 2, 1, 2, 3, 2, 2, 3, 2, 1, 2, 2, 1, 2, 2, 1, 2, 3, 2, 2, 3, 2, 1, 2, 2, 1, 2, 2, 1, 2, 3 ]
[ "nonn", "base" ]
A166589
[ 1, -1, 0, 1, 2, 0, 4, -1, 0, -2, 8, 0, 10, -4, 0, 1, 14, 0, 16, 2, 0, -8, 20, 0, 4, -10, 0, 4, 26, 0, 28, -1, 0, -14, 8, 0, 34, -16, 0, -2, 38, 0, 40, 8, 0, -20, 44, 0, 16, -4, 0, 10, 50, 0, 16, -4, 0, -26, 56, 0, 58, -28, 0, 1, 20, 0, 64, 14, 0, -8, 68, 0 ]
[ "sign", "easy", "mult" ]
A318147
[ 1, 0, 1, 0, -9, 10, 0, 477, -756, 280, 0, -74601, 142362, -83160, 15400, 0, 25740261, -55429920, 40900860, -12612600, 1401400, 0, -16591655817, 38999319642, -33465991104, 13440707280, -2572970400, 190590400 ]
[ "sign", "tabl" ]
A138193
[ 9, 15, 25, 27, 33, 39, 49, 55, 57, 63, 81, 87, 95, 111, 119, 121, 125, 135, 143, 153, 159, 161, 169, 175, 177, 183, 201, 207, 209, 225, 243, 249, 287, 289, 295, 297, 303, 319, 321, 329, 335, 343, 351, 361, 369, 375, 391, 393, 407, 415, 417, 423, 447, 489, 497 ]
[ "nonn" ]
A040164
[ 0, 0, 0, 0, 0, 2, 6, 8, 1, 7, 2, 4, 3, 1, 3, 2, 4, 5, 1, 6, 4, 2, 5, 1, 2, 0, 2, 6, 8, 2, 6, 0, 6, 8, 8, 0, 6, 2, 6, 2, 8, 0, 0, 2, 6, 8, 1, 1, 5, 7, 1, 7, 1, 1, 5, 1, 7, 1, 5, 1, 1, 1, 4, 2, 0, 4, 2, 4, 4, 6, 0, 6, 4, 0, 6, 0, 6, 4, 3, 5, 5, 3, 3, 1, 5, 1, 5, 3, 3, 1, 3, 5, 3, 3, 5, 2, 4, 4, 2, 4, 2, 2, 2, 4, 4 ]
[ "nonn", "base", "easy" ]
A099746
[ 10301, 10501, 10601, 1022201, 1028201, 1035301, 1043401, 1055501, 1062601, 1065601, 1074701, 1082801, 1085801, 1092901, 1093901, 101030101, 101060101, 101141101, 101171101, 101282101, 101292101, 101343101, 101373101, 101414101 ]
[ "nonn", "easy", "base" ]
A117638
[ 1, 2, 4, 6, 8, 11, 12, 16, 18, 21, 22, 24, 27, 29, 36, 42, 44, 47, 50, 54, 58, 63, 66, 72, 78, 80, 81, 83, 84, 85, 88, 90, 94, 100, 101, 105, 108, 116, 117, 120, 125, 126, 128, 129, 132, 135, 136, 137, 144, 147, 156, 160, 162, 166, 168, 170, 171, 173, 174, 176, 180 ]
[ "nonn", "base" ]
A155616
[ 1, 8, 40, 188, 880, 4148, 19720, 94508, 456160, 2215268, 10814200, 53022428, 260917840, 1287811988, 6371951080, 31591319948, 156882857920, 780119322308, 3883416742360, 19348364235068, 96466943268400, 481235204714228 ]
[ "nonn", "easy" ]
A259136
[ 10, 30, 120, 484, 1486, 1578, 13672, 13810, 15094, 72772, 94212 ]
[ "nonn", "more", "hard" ]
A290540
[ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, -2276485387658524, -523547340003805760000, -3.961719043273567e+25, -2.8967925429751744e+30, -9.581903288178518e+34, -1.0184091997098897e+39 ]
[ "sign" ]
A275156
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 20, 21, 24, 25, 26, 27, 32, 33, 34, 35, 39, 44, 48, 49, 50, 51, 54, 55, 63, 64, 65, 77, 80, 84, 90, 98, 99, 104, 119, 120, 125, 135, 143, 153, 168, 169, 175, 195, 220, 224, 242, 255, 272, 288, 324, 350, 351, 363, 374, 384, 440, 441, 539, 560, 594, 624, 675, 714, 728, 832, 935, 1000, 1088, 1155, 1224, 1274, 1700, 1715, 2057, 2079, 2400, 2430, 2499, 2600, 3024, 4095, 4224, 4374, 4913, 5831, 6655, 9800, 10647, 12375, 14399, 28560, 31212, 37179, 123200, 194480, 336140 ]
[ "nonn", "fini", "full" ]
A134375
[ 1, 1, 16, 1296, 331776, 207360000, 268738560000, 645241282560000, 2642908293365760000, 1.7340121312772751e+22, 1.734012131277275e+26, 2.538767161403059e+30, 5.264387585885382e+34, 1.503561738404724e+39 ]
[ "nonn" ]
A012444
[ 1, 2, 12, 280, 7952, 532768, 30306496, 4657640832, 327222722816, 131738463674880, 2341955285781504, 10584761954697845000, -1.7505946568145872e+21, 2.2131828393320476e+24 ]
[ "sign" ]
A096292
[ 3, 5, 11, 17, 29, 41, 59, 71, 101, 107, 137, 149, 179, 191, 197, 227, 239, 269, 281, 311, 347, 419, 431, 461, 521, 569, 599, 617, 641, 659, 809, 821, 827, 857, 881, 1019, 1031, 1049, 1061, 1091, 1151, 1229, 1277, 1289, 1301, 1319, 1427, 1451, 1481, 1487, 1607 ]
[ "nonn" ]
A141735
[ 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 0, 0 ]
[ "easy", "nonn" ]
A206548
[ 1, 5, 11, 13, 17, 19, 19, 17, 13, 11, 5, 1, 1, 5, 11, 13, 17, 19, 19, 17, 13, 11, 5, 1, 1, 5, 11, 13, 17, 19, 19, 17, 13, 11, 5, 1, 1, 5, 11, 13, 17, 19, 19, 17, 13, 11, 5, 1, 1, 5, 11, 13, 17, 19, 19, 17, 13, 11, 5, 1, 1, 5, 11, 13, 17, 19, 19, 17, 13, 11, 5, 1 ]
[ "nonn", "easy" ]
A251966
[ 4, 14, 18, 27, 123, 256, 3125, 6556, 6566, 46656, 823543, 16777216, 387420489, 10000000000, 285311670611, 8916100448256, 95367431640610, 95367431640640, 302875106592253, 11112006825558016, 437893890380859400, 18446744073709552000, 827240261886336800000 ]
[ "nonn" ]
A105087
[ 1, 0, 0, 4, 2, 0, 0, 0, 0, 0, 0, 10, 4, 4, 2, 6, 2, 4, 2, 0, 0, 4, 10, 0, 6, 4, 0, 4, 8, 2, 6, 0, 2, 2, 2, 6, 6, 0, 0, 6, 2, 0, 2, 8, 4, 0, 0, 12, 4, 6, 10, 14, 2, 2, 28, 4, 4, 2, 6, 8, 2, 2, 0, 4, 14, 20, 10, 4, 0, 8, 6, 0, 4, 2, 14, 0, 4, 8, 0, 4, 4, 16, 10, 12, 2, 2, 0, 0, 2, 6, 8, 20, 6, 20, 6, 2, 2, 0 ]
[ "easy", "nonn" ]
A201531
[ 1, 4, 2, 9, 1, 8, 2, 7, 3, 2, 5, 9, 7, 0, 1, 8, 3, 6, 7, 8, 2, 0, 2, 8, 8, 4, 2, 1, 5, 7, 3, 7, 9, 3, 6, 7, 4, 4, 7, 8, 9, 8, 1, 0, 4, 4, 9, 0, 6, 9, 1, 5, 7, 0, 5, 8, 8, 2, 4, 0, 5, 5, 3, 2, 6, 6, 7, 4, 1, 7, 8, 6, 3, 0, 7, 4, 4, 3, 1, 6, 8, 3, 5, 3, 2, 4, 0, 7, 4, 8, 1, 0, 3, 5, 6, 5, 8, 0, 4 ]
[ "nonn", "cons" ]
A033975
[ 1, 40, 20, 10, 5, 196, 98, 49, 1912, 956, 478, 239, 9322, 4661, 181780, 90890, 45445, 1772356, 886178, 443089, 17280472, 8640236, 4320118, 2160059, 84242302, 42121151, 1642724890, 821362445, 32033135356 ]
[ "nonn" ]
A168202
[ 5, 2, 8, 5, 11, 8, 14, 11, 17, 14, 20, 17, 23, 20, 26, 23, 29, 26, 32, 29, 35, 32, 38, 35, 41, 38, 44, 41, 47, 44, 50, 47, 53, 50, 56, 53, 59, 56, 62, 59, 65, 62, 68, 65, 71, 68, 74, 71, 77, 74, 80, 77, 83, 80, 86, 83, 89, 86, 92, 89, 95, 92, 98, 95, 101, 98, 104, 101, 107, 104 ]
[ "nonn", "easy" ]
A130974
[ 1, 1, 1, 3, 3, 3, 1, 1, 1, 3, 3, 3, 1, 1, 1, 3, 3, 3, 1, 1, 1, 3, 3, 3, 1, 1, 1, 3, 3, 3, 1, 1, 1, 3, 3, 3, 1, 1, 1, 3, 3, 3, 1, 1, 1, 3, 3, 3, 1, 1, 1, 3, 3, 3, 1, 1, 1, 3, 3, 3, 1, 1, 1, 3, 3, 3, 1, 1, 1, 3, 3, 3, 1, 1, 1, 3, 3, 3, 1, 1, 1, 3, 3, 3, 1, 1, 1, 3, 3, 3, 1, 1, 1, 3, 3, 3, 1, 1, 1, 3, 3, 3, 1, 1, 1 ]
[ "nonn", "easy" ]
A333001
[ 1, 3, 6, 7, 12, 12, 19, 15, 21, 23, 34, 25, 38, 37, 39, 31, 48, 41, 60, 46, 60, 63, 86, 50, 71, 71, 68, 71, 100, 74, 105, 63, 104, 89, 108, 81, 118, 112, 116, 90, 131, 112, 155, 119, 122, 153, 200, 101, 161, 132, 148, 135, 188, 131, 179, 137, 178, 181, 240, 144, 205, 192, 181, 127, 206, 191, 258, 170, 251, 199, 270, 160, 233, 218, 216 ]
[ "nonn" ]
A275436
[ 0, 0, 2, 2, 8, 10, 30, 40, 100, 140, 320, 460, 988, 1448, 2982, 4430, 8840, 13270, 25850, 39120, 74760, 113880, 214272, 328152, 609528, 937680, 1722890, 2660570, 4843400, 7503970, 13551510, 21055480, 37759468, 58814948, 104827712, 163642660, 290077780 ]
[ "nonn", "easy" ]
A148419
[ 1, 1, 2, 5, 18, 55, 207, 743, 2985, 11353, 47403, 189357, 806155, 3320235, 14415972, 60735227, 266952886, 1145375129, 5086266398, 22115900587, 99046871930, 435563614895, 1963427989281, 8712809726805, 39504708871655, 176630113016701, 804666823915117, 3621130775827235, 16564743136423270 ]
[ "nonn", "walk" ]
A286538
[ 2, 2, 4, 2, 6, 8, 4, 2, 6, 12, 16, 6, 12, 8, 4, 2, 6, 12, 24, 32, 6, 30, 36, 12, 24, 16, 6, 12, 12, 8, 4, 2, 6, 12, 24, 48, 64, 6, 30, 60, 72, 12, 60, 72, 24, 48, 32, 6, 30, 36, 30, 60, 36, 12, 24, 24, 16, 6, 12, 12, 12, 8, 4, 2, 6, 12, 24, 48, 96, 128, 6, 30, 60, 120, 144, 12, 60, 180, 216, 24, 120, 144, 48, 96, 64, 6 ]
[ "nonn" ]
A082820
[ 1, 15, 56, 21879, 129024, 343755125, 1026432000, 2332446667551, 129148759900160, 823630739283455200, 4840297233408000000, 1.4157122644468785e+23, 2.294760861764105e+24 ]
[ "nonn" ]
A178647
[ 6, 8, 2, 6, 8, 9, 4, 9, 2, 1, 3, 7, 0, 8, 5, 8, 9, 7, 1, 7, 0, 4, 6, 5, 0, 9, 1, 2, 6, 4, 0, 7, 5, 8, 4, 4, 9, 5, 5, 8, 2, 5, 9, 3, 3, 4, 5, 3, 2, 0, 8, 7, 8, 1, 9, 7, 4, 7, 8, 8, 9, 0, 0, 4, 8, 5, 9, 8, 2, 8, 8, 3, 9, 7, 4, 4, 0, 9, 6, 5, 9, 0, 0, 1, 7, 6, 9, 8, 3, 6, 8, 1, 1, 2, 7, 8, 6, 5, 5, 0, 5, 6, 5, 4, 5 ]
[ "nonn", "cons" ]