id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A048649
[ 1, 4, 0, 3, 9, 3, 6, 8, 2, 7, 8, 8, 2, 1, 7, 8, 3, 2, 0, 5, 7, 6, 2, 0, 6, 0, 7, 4, 1, 3, 7, 2, 0, 9, 3, 5, 4, 5, 3, 7, 6, 3, 8, 7, 6, 1, 5, 2, 1, 8, 9, 0, 0, 6, 7, 3, 7, 8, 5, 5, 7, 5, 4, 0, 0, 3, 9, 0, 8, 9, 1, 0, 0, 2, 2, 5, 1, 1, 3, 9, 1, 1, 1, 0, 0, 6, 3, 8, 0, 8, 1, 5, 3, 5, 3, 5, 5, 9, 2 ]
[ "nonn", "cons" ]
A358344
[ 0, 2, 1, 2, 2, 3, 1, 5, 9, 7, 21, 5, 31, 49, 39, 104, 2, 34, 44, 74, 22, 64, 16, 107, 549, 81, 207, 273, 87, 497, 27, 556, 42, 150, 32, 44, 144, 340, 28, 198, 677, 13, 61, 209, 377, 893, 329, 391, 49, 83, 425, 197, 1017, 205, 191, 163, 1131, 291, 281, 295, 389 ]
[ "base", "nonn" ]
A072083
[ 1, 10, 100, 1000, 2000, 2401, 5000, 10000, 13122, 20000, 24010, 50000, 100000, 110000, 131220, 140000, 190000, 200000, 230000, 234256, 240100, 280000, 320000, 370000, 390625, 400221, 410000, 460000, 500000, 512000, 550000, 614656, 640000 ]
[ "base", "nonn" ]
A287122
[ 2, 4, 6, 8, 10, 12, 15, 17, 19, 21, 23, 25, 27, 29, 31, 34, 36, 38, 41, 44, 46, 48, 50, 52, 54, 57, 59, 61, 63, 65, 67, 69, 71, 73, 76, 78, 80, 82, 84, 86, 88, 90, 92, 95, 97, 99, 102, 105, 107, 109, 111, 113, 115, 118, 120, 122, 125, 128, 130, 132, 135, 138 ]
[ "nonn", "easy" ]
A087009
[ 1, 0, 2, 4, 6, 12, 24, 48, 96, 192, 384, 768, 1536, 3072, 6144, 12288, 24576, 49152, 98304, 196608, 393216, 786432, 1572864, 3145728, 6291456, 12582912, 25165824, 50331648, 100663296, 201326592, 402653184, 805306368, 1610612736, 3221225472 ]
[ "nonn", "easy" ]
A077829
[ 1, 3, 12, 47, 183, 714, 2785, 10863, 42372, 165275, 644667, 2514570, 9808261, 38257827, 149227404, 582072215, 2270414511, 8855914986, 34543132921, 134737972743, 525555146964, 2049965624963, 7996038261267, 31189121952618, 121655411891581, 474525678055131 ]
[ "nonn", "easy" ]
A117455
[ 0, 0, 1, 2, 4, 8, 12, 19, 27, 41, 54, 76, 99, 133, 171, 223, 279, 357, 443, 554, 682, 841, 1022, 1247, 1504, 1814, 2174, 2603, 3092, 3676, 4346, 5127, 6030, 7076, 8275, 9669, 11254, 13078, 15167, 17556, 20270, 23377, 26899, 30902, 35448, 40592, 46403 ]
[ "nonn" ]
A359116
[ 1, 2, 5, 19, 208, 480, 3011, 7185, 20169, 35438, 111232, 162062, 422841, 633226, 1024370, 1576122, 3315790, 4240974, 8204951, 10654475, 15310713 ]
[ "nonn", "more" ]
A095201
[ 0, 0, 1, 0, 2, 2, 3, 0, 4, 3, 5, 5, 6, 5, 7, 0, 8, 6, 9, 9, 10, 8, 11, 10, 12, 9, 13, 6, 14, 14, 15, 0, 16, 12, 17, 7, 18, 14, 19, 12, 20, 20, 21, 20, 22, 17, 23, 21, 24, 18, 25, 24, 26, 20, 27, 27, 28, 21, 29, 26, 30, 23, 31, 0, 32, 29, 33, 14, 34, 33, 35, 35, 36, 27, 37, 35, 38, 34, 39 ]
[ "nonn" ]
A350761
[ 1, 2, 7, 6, 3, 0, 5, 1, 5, 9, 4, 3, 5, 1, 3, 8, 8, 3, 5, 1, 8, 4, 9, 1, 7, 1, 0, 3, 2, 1, 5, 1, 8, 3, 3, 7, 4, 2, 4, 1, 8, 1, 2, 9, 3, 6, 5, 9, 7, 4, 2, 5, 4, 0, 4, 1, 2, 7, 4, 7, 6, 9, 3, 9, 0, 5, 1, 9, 0, 0, 4, 3, 9, 4, 6, 0, 3, 6, 2, 9, 5, 5, 2, 5, 6, 3, 1, 1, 5, 3, 6, 5, 8, 4, 5, 5, 9, 1, 8, 0, 4, 9, 9, 0, 5 ]
[ "nonn", "cons" ]
A223237
[ 20736, 142805, 26157625, 2191464605, 266409703885, 27049155640325, 3010781803380625, 319668431152592600, 34788800528856367000, 3.737470592349482e+21, 4.042613763723542e+23 ]
[ "nonn" ]
A076240
[ 1, 2, 1, 3, 9, 2, 8, 10, 14, 22, 3, 9, 15, 19, 23, 29, 41, 39, 63, 69, 2, 6, 16, 16, 24, 42, 48, 52, 54, 52, 74, 84, 88, 102, 114, 122, 134, 152, 156, 166, 168, 1, 7, 13, 19, 23, 31, 71, 71, 73, 73, 65, 77, 91, 79, 91, 109, 115, 125, 137, 149, 155, 185, 197, 203, 197, 235 ]
[ "nonn", "look" ]
A143106
[ 1, 3, 5, 9, 17, 21 ]
[ "hard", "nonn", "more" ]
A128599
[ 1, 3, 7, 22, 43, 170, 321, 1127, 2816, 9221, 16403, 90121, 157741, 475003, 1377765, 5194616, 8925845, 41509031, 70873504, 314321071, 846062365, 2349224135, 3973214615, 25816158418, 53403343055, 145093944173, 373986049879 ]
[ "frac", "nonn" ]
A244288
[ 1, 1, 5, 57, 1084, 29003, 999717, 42125233, 2096106904, 120194547233, 7799803041491, 564856080384900, 45146219773912540, 3946445378386791000, 374482268128153000000, 3.8330653031858935e+22, 4.209191997519329e+24, 4.935757370476094e+26 ]
[ "nonn" ]
A372508
[ 0, 1, 0, 2, 1, 12, 6, 128, 78, 1872, 1613, 37600, 38336, 990784, 1124280, 32333824, 41622181, 1272660224, 1843050734, 59527313920, 94591980910, 3252626013184, 5602035320753, 204354574172160, 380190518533920, 14594815769038848, 29179899891380590, 1174376539738169300 ]
[ "nonn" ]
A212904
[ 1, 6, 24, 58, 118, 202, 324, 478, 682, 926, 1232, 1586, 2014, 2498, 3068, 3702, 4434, 5238, 6152, 7146, 8262, 9466, 10804, 12238, 13818, 15502, 17344, 19298, 21422, 23666, 26092, 28646, 31394, 34278, 37368, 40602, 44054, 47658, 51492 ]
[ "nonn", "easy" ]
A344165
[ 1, 1, 1, 2, 2, 1, 2, 1, 3, 1, 2, 2, 2, 3, 3, 1, 2, 3, 2, 2, 2, 4, 3, 3, 1, 1, 3, 3, 4, 2, 3, 2, 2, 4, 2, 4, 3, 3, 1, 2, 3, 3, 3, 3, 5, 2, 4, 3, 3, 2, 2, 4, 2, 3, 4, 4, 3, 4, 3, 1, 2, 2, 4, 3, 3, 3, 4, 5, 5, 2, 3, 5, 3, 4, 3, 3, 2, 2, 4, 1, 3, 3, 4, 4, 5, 4 ]
[ "nonn", "base" ]
A308813
[ 1, 1, 1, 1, 2, 1, 1, 3, 2, 1, 1, 4, 5, 3, 1, 1, 5, 10, 11, 2, 1, 1, 6, 17, 31, 17, 4, 1, 1, 7, 26, 69, 82, 39, 2, 1, 1, 8, 37, 131, 257, 256, 65, 4, 1, 1, 9, 50, 223, 626, 1045, 730, 139, 3, 1, 1, 10, 65, 351, 1297, 3156, 4097, 2218, 261, 4, 1 ]
[ "nonn", "tabl" ]
A023574
[ 0, 0, 1, 2, 3, 2, 2, 4, 3, 2, 3, 2, 2, 4, 3, 3, 4, 2, 6, 3, 3, 3, 5, 2, 2, 3, 4, 4, 2, 3, 3, 7, 2, 4, 2, 3, 3, 6, 3, 3, 5, 2, 3, 3, 2, 4, 5, 4, 6, 2, 3, 3, 3, 4, 2, 4, 3, 3, 2, 2, 5, 3, 5, 4, 3, 2, 4, 2, 4, 2, 4, 3, 4, 3, 4, 4, 2, 2, 2, 3, 6, 3, 3, 3, 3, 5, 2, 2, 2, 4, 5, 4, 4, 4, 5, 5, 3, 3, 5 ]
[ "nonn" ]
A117994
[ 0, 286, 6426, 6682, 22420, 26884, 28462, 60606, 268468, 280060, 446688, 448804, 604422, 664866, 848848, 2226424, 2240602, 2828644, 2844622, 4268662, 6820282, 8424486, 22062646, 24066868, 26482680, 28404046, 28606648, 44662482, 46822468, 48042064, 60484024 ]
[ "base", "nonn" ]
A016849
[ 1, 15, 157, 1431, 12229, 101199, 823789, 6649287, 53436757, 428483583, 3431885821, 27471332343, 219836173285, 1758953038767, 14072683703053, 112585721544999, 900702823089013, 7205690916768351, 57645801049792290 ]
[ "nonn", "easy" ]
A079527
[ 0, 1, 3, 5, 8, 10, 12, 15, 17, 20, 22, 25, 27, 30, 33, 35, 38, 41, 43, 46, 49, 52, 55, 57, 60, 63, 66, 69, 72, 75, 78, 81, 84, 86, 89, 92, 95, 98, 101, 104, 107, 110, 113, 116, 119, 123, 126, 129, 132, 135, 138, 141, 144, 147, 150, 153, 156, 160, 163, 166, 169, 172, 175, 178 ]
[ "nonn" ]
A200924
[ 2, 3, 3, 3, 3, 5, 37, 67, 83, 199, 397, 1231, 1627, 2707, 3637, 4519, 21649, 30307, 34849, 51203, 52711, 54547, 56369, 97561, 115963, 123493, 136043, 139987, 149077, 173923, 199999, 200003, 333667, 370477, 513239, 538987, 666733, 770437, 943081, 1466653 ]
[ "fini", "nonn" ]
A322372
[ 1, 2, 4, 4, 6, 6, 12, 12, 12, 12, 16, 18, 20, 20, 24, 24, 24, 24, 30, 30, 30, 36, 36, 36, 42, 48, 48, 48, 48, 48, 60, 60, 60, 60, 60, 60, 60, 60, 60, 72, 72, 72, 72, 72, 84, 84, 84, 84, 90, 90, 90, 96, 96, 96, 108, 108, 108, 108, 108, 108, 120, 120, 120, 120, 120 ]
[ "nonn" ]
A239071
[ 0, 2, 6, 11, 19, 39, 53, 84, 104, 122, 146, 195, 225, 285, 321, 352, 392, 434, 470, 516, 605, 657, 757, 815, 864, 926, 990, 1044, 1112, 1241, 1315, 1455, 1535, 1602, 1686, 1844, 1934, 2103, 2199, 2279, 2379, 2481, 2566, 2672, 2870, 2982, 3191, 3309, 3407, 3529 ]
[ "nonn" ]
A109224
[ 3, 13, 42, 128, 343, 881, 2189, 5359, 13023, 31537, 76245, 184191, 444807 ]
[ "hard", "more", "nonn" ]
A333378
[ 0, 1, -1, -2, 3, 5, -8, -13, 21, 34, -55, -89, 144, 233, -377, -610, 987, 1597, -2584, -4181, 6765, 10946, -17711, -28657, 46368, 75025, -121393, -196418, 317811, 514229, -832040, -1346269, 2178309, 3524578, -5702887, -9227465, 14930352, 24157817, -39088169 ]
[ "sign", "easy" ]
A324538
[ 1, 2, 2, 2, 2, 3, 2, 2, 2, 4, 2, 5, 2, 6, 4, 2, 2, 7, 2, 4, 6, 8, 2, 9, 2, 10, 2, 6, 2, 11, 2, 2, 8, 12, 6, 13, 2, 14, 10, 15, 2, 16, 2, 8, 15, 17, 2, 18, 2, 19, 12, 10, 2, 20, 8, 6, 14, 21, 2, 22, 2, 23, 6, 2, 10, 24, 2, 12, 17, 25, 2, 26, 2, 27, 19, 14, 8, 28, 2, 29, 2, 30, 2, 31, 12, 32, 21, 8, 2, 33, 10, 17, 23, 34, 14, 35, 2, 36, 8, 37, 2, 38, 2, 10, 25 ]
[ "nonn" ]
A217204
[ 1, 2, 1, 5, 6, 1, 15, 22, 9, 2, 52, 94, 63, 26, 5, 203, 460, 416, 244, 101, 16, 877, 2532, 2741, 2124, 1361, 384, 61, 4140, 15420, 18425, 18536, 15602, 6092, 2153, 272, 21147, 102620, 127603, 166440, 165786, 83436, 46959, 10384, 1385, 115975, 739512, 914508, 1550864, 1700220, 1082712, 823256, 247776, 74841, 7936 ]
[ "nonn", "tabl" ]
A127317
[ 5, 13, 23029 ]
[ "bref", "hard", "more", "nonn" ]
A244076
[ 10157893, 71627707, 86571727, 90109601, 98957849, 99023257, 99284501, 114096371, 142399363, 166262293, 207549337, 213185347, 213708611, 215798563, 229298773, 229306949, 242872709, 251719903, 274263943, 276356999, 278326889, 284716807, 289074853, 294317669 ]
[ "nonn" ]
A336160
[ 1, 1, 2, 1, 3, 2, 3, 1, 4, 3, 5, 2, 6, 3, 7, 1, 8, 4, 9, 3, 7, 5, 10, 2, 11, 6, 12, 3, 13, 7, 5, 1, 14, 8, 15, 4, 16, 9, 17, 3, 13, 7, 18, 5, 19, 10, 20, 2, 11, 11, 15, 6, 21, 12, 22, 3, 22, 13, 23, 7, 24, 5, 19, 1, 25, 14, 26, 8, 27, 15, 28, 4, 29, 16, 30, 9, 22, 17, 31, 3, 32, 13, 33, 7, 34, 18, 35, 5, 36, 19, 25, 10, 14, 20, 37, 2, 38, 11, 39, 11, 40, 15, 41, 6, 42 ]
[ "nonn" ]
A255902
[ 4, 4, 5, 1, 6, 5, 0, 6, 9, 8, 0, 8, 9, 2, 2, 1, 5, 3, 8, 2, 4, 7, 9, 9, 8, 7, 8, 2, 7, 4, 0, 1, 2, 5, 5, 0, 9, 9, 6, 9, 3, 8, 7, 5, 0, 3, 9, 7, 4, 5, 7, 6, 8, 7, 3, 6, 3, 9, 6, 8, 6, 5, 2, 9, 9, 1, 9, 2, 4, 1, 3, 1, 8, 8, 3, 6, 0, 8, 6, 6, 4, 1, 2, 7, 5, 3, 0, 2, 3, 1, 7, 7, 8, 3, 7, 0, 0, 1, 3, 2, 9, 2 ]
[ "nonn", "cons", "easy" ]
A117315
[ 2, 3, 5, 7, 19, 71, 251, 3433, 48619, 2704157, 155117519, 35345263801, 2104098963721, 30067266499541040, 6.892620648693261e+21, 6.637553085023755e+24, 4.107954494420592e+26, 3.996088548667445e+29, 1.5208034778118745e+36 ]
[ "easy", "nonn" ]
A011846
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 5, 22, 71, 200, 500, 1144, 2431, 4862, 9237, 16796, 29393, 49742, 81719, 130750, 204297, 312455, 468682, 690690, 1001500, 1430715, 2016007, 2804880, 3856710, 5245125, 7060746 ]
[ "nonn", "easy" ]
A307017
[ 0, 1, 1, 0, -1, -1, 0, 2, 1, -1, -2, -1, 1, 2, 2, 0, -2, -2, 0, 3, 3, 2, 1, -1, -2, -3, -3, -2, -1, 1, 2, 3, 3, 0, -3, -3, 0, 4, 2, -2, -4, -2, 2, 4, 4, 3, 1, -1, -3, -4, -4, -3, -1, 1, 3, 4, 4, 0, -4, -4, 0, 5, 5, 3, 2, -2, -3, -5, -5, -3, -2, 2, 3, 5, 5, 4, 1 ]
[ "sign", "look" ]
A196202
[ 2, 4, 16, 15, 56, 40, 222, 58, 392, 30, 187, 38, 944, 1076, 2069, 1909, 473, 2197, 671, 143, 4089, 1502, 3985, 535, 5530, 9293, 6078, 1392, 7304, 9380, 2287, 2228, 7262, 4171, 14305, 8457, 12875, 10922, 7850, 520, 8951, 26789, 9551, 20073, 34476, 26866 ]
[ "nonn", "easy" ]
A052171
[ 1, 2, 11, 52, 296, 1724, 11060, 74527, 533046, 3999187, 31412182, 257150093, 2188063401, 19299062896, 176059781439, 1657961491087, 16089088019098, 160643776819423, 1648068916722737, 17351137043998280, 187255329043638430, 2069426416836401400, 23397468305569067000, 270406562951254600000, 3.191908298072118e+21, 3.8454691427658e+22 ]
[ "nonn" ]
A352729
[ 0, 0, 0, 0, 4, 0, 0, 0, 8, 8, 8, 0, 12, 0, 0, 0, 16, 16, 16, 16, 20, 16, 16, 0, 24, 24, 24, 0, 28, 0, 0, 0, 32, 32, 32, 32, 36, 32, 32, 32, 40, 40, 40, 32, 44, 32, 32, 0, 48, 48, 48, 48, 52, 48, 48, 0, 56, 56, 56, 0, 60, 0, 0, 0, 64, 64, 64, 64, 68, 64, 64, 64 ]
[ "nonn", "base" ]
A279317
[ 2, 3, 4, 5, 5, 5, 7, 7, 6, 6, 7, 7, 7, 7, 7, 8, 8, 7, 9, 8, 8, 8, 8, 8, 8, 8, 8, 9, 9, 8, 9, 9, 9, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 9, 9, 10, 9, 10, 9, 10, 10, 10, 10, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 10, 10, 10, 10, 10, 10, 10, 11, 11, 10, 10, 10, 10, 10, 10, 11, 10, 11, 10, 11, 10, 11, 11, 11, 11, 10, 11, 11, 11, 11, 11, 11, 11, 11, 10, 11, 11, 11, 11, 11, 11, 11, 11, 12 ]
[ "nonn", "hard" ]
A166976
[ 0, 1, 1, 3, 4, 5, 9, 12, 16, 21, 27, 36, 48, 64, 85, 81, 108, 144, 192, 256, 341, 243, 324, 432, 576, 768, 1024, 1365, 729, 972, 1296, 1728, 2304, 3072, 4096, 5461, 2187, 2916, 3888, 5184, 6912, 9216, 12288, 16384, 21845, 6561 ]
[ "nonn", "easy", "tabl" ]
A246989
[ 1, 17, 206, 6029, 508321 ]
[ "nonn", "more" ]
A006220
[ 1, 1, 3, 10, 45, 251, 1638, 12300, 104877, 1000135, 10534062, 121436206, 1521332904 ]
[ "nonn", "more" ]
A009424
[ 0, 1, -1, 5, -24, 154, -1170, 10394, -105392, 1201524, -15210180, 211691380, -3212711040, 52801793160, -934299180360, 17708685967400, -357960437635200, 7686847410694800, -174756587308650000, 4193327411934706000 ]
[ "sign", "easy" ]
A053082
[ 1302540, 1268088, 123552, 137280, 20532, 7804, 6552, 3120, 180, 24, 13 ]
[ "fini", "full", "nonn" ]
A353015
[ 1, 1, 4, 27, 257, 3157, 47385, 839928, 17168097, 397517868, 10283523826, 293950435376, 9200707298514, 312972062711525, 11496160809184370, 453507273286873860, 19122193920118268000, 858239308206920600000, 4.085107348480847e+22 ]
[ "nonn", "easy" ]
A199469
[ 2, 1, 0, 2, 8, 3, 6, 8, 6, 0, 9, 1, 4, 1, 0, 4, 7, 0, 1, 4, 7, 2, 7, 6, 8, 5, 1, 1, 8, 2, 4, 7, 0, 2, 2, 2, 9, 9, 9, 0, 3, 9, 3, 3, 8, 5, 4, 9, 9, 5, 6, 0, 5, 1, 0, 6, 5, 9, 1, 6, 7, 8, 9, 9, 6, 1, 1, 3, 4, 2, 1, 8, 0, 7, 9, 3, 0, 9, 6, 1, 6, 1, 0, 6, 8, 9, 3, 9, 1, 4, 1, 1, 3, 8, 0, 6, 9, 2, 0 ]
[ "nonn", "cons" ]
A305884
[ 1, 1, 1, 4, 16, 25, 25, 324, 841, 1849, 2601, 14884, 18769, 103041, 292681, 774400, 3400336, 13307904, 34892649, 179399236, 582643044, 2008473856, 4369606609, 22833627664, 67113119844, 251608579236, 1240247504896, 3174109249609 ]
[ "nonn", "more" ]
A375053
[ 1, 3, 7, 11, 16, 20, 24, 28, 33, 37, 41, 45, 50, 54, 58, 62, 67, 71, 75, 79, 84, 88, 92, 96, 101, 105, 109, 113, 118, 122, 126, 131, 135, 139, 143, 148, 152, 156, 160, 165, 169, 173, 177, 182, 186, 190, 194, 199, 203, 207, 212, 216, 220, 224, 229, 233, 237 ]
[ "nonn" ]
A265223
[ 0, 0, 2, 4, 10, 12, 20, 24, 38, 48, 60, 68, 88, 100, 118, 128, 158, 184, 212, 236, 268, 284, 314, 328, 372, 408, 446, 476, 522, 548, 588, 608, 670, 728, 788, 844, 908, 956, 1018, 1064, 1136, 1192, 1250, 1292, 1366, 1412, 1472, 1504, 1596, 1680, 1766, 1844 ]
[ "nonn", "easy" ]
A057992
[ 1, 1, 1, 3, 7, 11, 491, 6381, 10940111, 1225586965, 130025302505741, 252282619993126720, 2.2096172187257125e+24, 9.875865581683379e+28 ]
[ "nonn", "more" ]
A107407
[ 1, 6, 10, 12, 16, 30, 40, 54, 64, 70, 72, 82, 84, 94, 96, 106, 112, 120, 126, 132, 136, 160, 162, 166, 174, 184, 202, 204, 210, 220, 222, 226, 240, 244, 250, 252, 264, 274, 282, 292, 304, 306, 316, 330, 334, 342, 346, 352, 360, 364, 390, 394, 402, 420, 426, 436 ]
[ "nonn", "easy" ]
A181282
[ 1, 3, 12, 60, 336, 2016, 12672, 82368, 549120, 3734016, 25798656, 180590592, 1278025728, 9128755200, 65727037440, 476521021440, 3475800391680, 25489202872320, 187815179059200, 1389832325038080, 10324468700282880, 76964221220290560, 575558523908259840, 4316688929311949000 ]
[ "nonn", "easy" ]
A004998
[ 1, 66, 3366, 154836, 6735366, 282885372, 11598300252, 467245810152, 18573020953542, 730538824172652, 28491014142733428, 1103379274982221800, 42480102086815540000, 1.6273146799410876e+21, 6.20704313634672e+22, 2.3586763918117536e+24, 8.933486833987017e+25 ]
[ "nonn", "easy" ]
A028826
[ 1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 21, 23 ]
[ "nonn", "fini", "full" ]
A338058
[ 1, 3, 5, 5, 5, 5, 5, 5, 5, 9, 10, 10, 10, 10, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 18, 18, 18, 18, 22, 22, 22, 22, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 27, 27, 27, 27, 33, 33, 33, 33, 36 ]
[ "nonn" ]
A275434
[ 0, 0, 0, 2, 4, 12, 28, 68, 156, 356, 796, 1764, 3868, 8420, 18204, 39140, 83740, 178404, 378652, 800996, 1689372, 3553508, 7456540, 15612132, 32622364, 68040932, 141674268, 294533348, 611436316, 1267611876, 2624702236, 5428361444, 11214636828 ]
[ "nonn", "easy" ]
A136173
[ 1, 3, 25, 480, 20657, 1906051, 378639419, 163267272113, 155845755656250, 335843460383424800, 1.6649768799596262e+21, 1.928966026228167e+25, 5.290792256697458e+29, 3.4719352972951197e+34 ]
[ "nonn" ]
A241456
[ 0, 0, 1, 1, 1, 7, 31, 221, 3025, 68033 ]
[ "nonn", "more" ]
A021592
[ 0, 0, 1, 7, 0, 0, 6, 8, 0, 2, 7, 2, 1, 0, 8, 8, 4, 3, 5, 3, 7, 4, 1, 4, 9, 6, 5, 9, 8, 6, 3, 9, 4, 5, 5, 7, 8, 2, 3, 1, 2, 9, 2, 5, 1, 7, 0, 0, 6, 8, 0, 2, 7, 2, 1, 0, 8, 8, 4, 3, 5, 3, 7, 4, 1, 4, 9, 6, 5, 9, 8, 6, 3, 9, 4, 5, 5, 7, 8, 2, 3, 1, 2, 9, 2, 5, 1, 7, 0, 0, 6, 8, 0, 2, 7, 2, 1, 0, 8 ]
[ "nonn", "cons", "easy" ]
A364909
[ 1, 1, 1, 5, 5, 7, 51, 45, 89, 109, 709, 733, 1495, 1935, 3119, 13785, 16611, 29035, 44611, 68733, 95193, 372897, 435007, 781345, 1177181, 1866659, 2600537, 3906561, 12052631, 14610799, 25407653, 37652265, 59943351, 84060993, 128112805, 172172117, 480353257, 578740011 ]
[ "nonn" ]
A343089
[ 1, 8, 59, 420, 2940, 20384, 140479, 964184, 6598481, 45059872, 307197620, 2091615760, 14226362200, 96680047568, 656559634503, 4456100344560, 30228597199443, 204971912361512, 1389342336011059, 9414200925647540, 63772600432265970, 431892497914345500 ]
[ "nonn" ]
A036013
[ 2, 2, 2, 3, 2, 4, 2, 3, 6, 4, 5, 5, 5, 10, 4, 3, 5, 8, 22, 13, 14, 2, 5, 5, 2, 20, 9, 9, 24, 5, 26, 15, 14, 25, 25, 4, 9, 30, 9, 21, 12, 11, 10, 2, 40, 19, 8, 13, 11, 50, 3, 25, 25, 8, 5, 25, 46, 19, 47, 54, 9, 13, 14, 43, 4, 24, 28, 16, 33, 25, 152, 2, 11, 22, 6, 78, 87, 7, 10, 21 ]
[ "nonn", "nice", "easy" ]
A005008
[ 1, 0, -2, -3, 8, 95, 684, 4991, 40256, 362799, 3628700, 39916679, 479001456, 6227020631, 87178291004, 1307674367775, 20922789887744, 355687428095711, 6402373705727676, 121645100408831630, 2432902008176639500, 51090942171709440000, 1.1240007277776077e+21 ]
[ "sign", "easy" ]
A230264
[ 1, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 2, 0, 0, 1, 0, 0, 0, 0, 0, 2, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 2, 0, 0, 1, 0, 1, 0, 0, 0, 2, 0, 0, 1, 0, 0, 2, 0, 0, 0, 0, 0, 1, 0, 1, 3, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 0, 0, 1, 0, 2, 0, 0, 0, 2, 0 ]
[ "nonn" ]
A219978
[ 5, 6, 13, 16, 18, 21, 22, 28, 29, 37, 46, 60, 71, 84 ]
[ "nonn", "more" ]
A120767
[ 2, 5, 25, 539, 65617, 33554675, 68719477465, 562949953423499, 18446744073709560000, 2.4178516392292583e+24, 1.2676506002282294e+30, 2.658455991569832e+36, 2.2300745198530623e+43, 7.482888383134223e+50 ]
[ "nonn", "easy" ]
A019415
[ 2, 5, 13, 37, 41, 59, 71, 73, 101, 107, 113, 127, 131, 139, 149, 151, 191, 223, 227, 233, 257, 277, 293, 311, 317, 331, 337, 359, 367, 409, 419, 431, 433, 443, 467, 479, 487, 503, 521, 523, 563, 571, 593, 599, 601, 617, 631, 643, 653, 659, 683, 709, 757, 829, 839, 857 ]
[ "nonn" ]
A306332
[ 1, 2, 6, 16, 36, 82, 166, 262, 382, 670, 766, 1066, 1492, 2050, 2470, 2710, 3370, 4192, 4432, 5050, 6274, 7354, 8050, 8590, 10270, 11256, 12250, 15190, 15670, 18910, 22666, 26026, 26110, 32146, 32230, 47806, 48250, 56026, 66652, 72766, 82630, 84706 ]
[ "nonn" ]
A204014
[ 1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 1, 1, 1, 3, 1, 3, 1, 1, 1, 2, 1, 2, 2, 1, 2, 1, 1, 1, 2, 3, 1, 3, 2, 1, 1, 1, 2, 3, 4, 2, 2, 4, 3, 2, 1, 1, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 1, 2, 2, 2, 4, 2, 2, 4, 2, 2, 2, 1, 1, 1, 3, 3, 5, 3, 1, 3, 5, 3, 3, 1, 1, 1, 2, 1, 4, 1, 4, 2, 2 ]
[ "nonn", "tabl" ]
A051082
[ 2, 3, 11, 17, 19, 41, 43, 59, 67, 73, 83, 89, 97, 107, 113, 137, 139, 163, 179, 193, 211, 227, 233, 241, 251, 257, 281, 283, 307, 331, 337, 347, 353, 379, 401, 409, 419, 433, 449, 457, 467, 491, 499, 523, 563, 569, 571, 577, 587, 593, 601, 617, 619, 641, 643, 659, 673, 683, 691, 739, 761, 769, 787, 809, 811, 827, 857, 881, 883, 907, 929, 947, 953, 971, 977, 1009 ]
[ "nonn", "easy" ]
A011248
[ 2, 2, 10, 122, 2770, 101042, 5405530, 398721962, 38783024290, 4809759350882, 740742376475050, 138697748786275800, 31029068327114174000, 8.174145018586248e+21, 2.50451928280726e+24, 8.830877864980462e+26, 3.550387831590786e+29, 1.614465984717758e+32 ]
[ "nonn" ]
A358253
[ 1, 8, 32, 128, 288, 864, 1152, 2592, 4608, 10368, 20736, 28800, 41472, 64800, 115200, 259200, 518400, 1036800, 2073600, 4147200, 8294400, 9331200, 12700800, 25401600, 50803200, 101606400, 203212800, 406425600, 457228800, 635040000, 812851200, 914457600, 1270080000 ]
[ "nonn" ]
A074966
[ 1, 1, 2, 1, 12, 7, 4, 43, 10, 19, 62, 35, 16, 27, 28, 13, 74, 107, 18, 91, 32, 87, 14, 95, 96, 43, 68, 135, 120, 19, 58, 7, 58, 63, 54, 31, 42, 115, 10, 157, 110, 13, 4, 403, 122, 457, 534, 37, 18, 31, 226, 253, 20, 193, 102, 177, 392, 45, 194, 257, 102, 79, 454, 231, 306 ]
[ "nonn" ]
A074832
[ 3, 5, 7, 11, 13, 17, 23, 29, 31, 37, 41, 43, 47, 53, 61, 67, 71, 73, 83, 97, 101, 107, 113, 127, 131, 151, 163, 167, 173, 181, 193, 197, 199, 223, 227, 229, 233, 251, 257, 263, 269, 277, 283, 307, 313, 331, 337, 349, 353, 359, 373, 383, 409, 421, 431, 433, 443 ]
[ "base", "easy", "nonn" ]
A088760
[ 1, 11, 121, 11132, 1013012, 1091013924, 1032099172104, 1907319270048192, 2731281194709011000, 1.1009794495872024e+22, 2.237190241561195e+25, 1.055730074992728e+29, 7.810291094796202e+32 ]
[ "nonn", "base" ]
A254315
[ 1, 1, 1, 1, 2, 1, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 1, 2, 2, 3, 2, 2, 2, 3, 2, 2, 2, 3, 2, 3, 2, 3, 2, 2, 3, 2, 2, 3, 2, 2, 3, 3, 2, 2, 2, 3, 3, 2, 2, 3, 2, 3, 3, 2, 3, 3, 2, 3, 2, 3, 2, 2, 2, 3, 3, 3, 2, 3, 2, 3, 2, 3, 2, 3, 3, 3, 3, 3 ]
[ "nonn", "base", "easy" ]
A115533
[ 24489796, 55102041, 97959184, 15976331361, 28402366864, 44378698225, 63905325444, 86982248521, 2.4489795918367347e+49 ]
[ "nonn", "base" ]
A020716
[ 6, 8, 11, 15, 20, 27, 36, 48, 64, 85, 113, 150, 199, 264, 350, 464, 615, 815, 1080, 1431, 1896, 2512, 3328, 4409, 5841, 7738, 10251, 13580, 17990, 23832, 31571, 41823, 55404, 73395, 97228, 128800, 170624, 226029, 299425, 396654, 525455, 696080, 922110, 1221536 ]
[ "nonn" ]
A135477
[ 3, 3, 8, 9, 10, 13, 15, 19, 24, 28, 30, 35, 40, 43, 45, 48, 58, 63, 64, 73, 73, 75, 80, 85, 94, 99, 108, 108, 115, 120, 133, 138, 143, 145, 145, 148, 160, 163, 168, 184, 189, 190, 195, 219, 220, 224, 225, 225, 250, 253, 255, 268, 283, 288, 288, 304, 313, 318, 323, 324 ]
[ "nonn" ]
A163349
[ 1, 9, 67, 463, 3089, 20241, 131363, 848087, 5459521, 35089209, 225323107, 1446179263, 9279361169, 59531488641, 381889579523, 2449671556487, 15713255235841, 100790106559209, 646496195167747, 4146789500815663 ]
[ "nonn" ]
A327153
[ 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 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, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 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, 1, 0, 0, 1 ]
[ "nonn" ]
A386584
[ 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 2, 1, 1, 1, 0, 0, 1, 0, 2, 1, 2, 1, 1, 0, 0, 0, 1, 2, 2, 2, 2, 1, 1, 0, 0, 1, 0, 3, 2, 4, 2, 2, 1, 1, 0, 0, 0, 0, 3, 2, 4, 3, 3, 2, 1, 1 ]
[ "nonn", "tabl" ]
A133389
[ 1, 1, 2, 2, 4, 4, 4, 8, 9, 11, 15, 19, 21, 23, 27, 31, 52, 79, 106, 121, 152, 179, 300, 352, 473, 652, 952, 1058, 1531, 2483, 2783, 2962, 3914, 7828, 10790, 11742, 12800, 16714, 29514, 31997, 35911, 67908, 79650, 87478, 123389, 135131, 147931, 235409, 271320 ]
[ "base", "easy", "nonn" ]
A085882
[ 2, 13, 131, 5503, 121067, 75545809, 17979902543, 2049708889903, 3771464357421521, 1093724663652241200, 406865574878633660000, 2.1376717304123415e+24, 1.7879486353168824e+28 ]
[ "nonn" ]
A266065
[ 9, 323, 809, 8262, 154939, 1066148, 11753249, 164649556, 1624261580, 18538981257, 229469667714, 2536359623435, 29278580961556, 347292039035416, 3973004685343895, 46045222804587430, 538477979319956740 ]
[ "nonn" ]
A077448
[ 1, 36, 100, 196, 225, 441, 484, 676, 1089, 1156, 1225, 1444, 1521, 2116, 2601, 3025, 3249, 3364, 3844, 4225, 4761, 5476, 5929, 6724, 7225, 7396, 7569, 8281, 8649, 8836, 9025, 11236, 12321, 13225, 13924, 14161, 14884, 15129, 16641, 17689, 17956 ]
[ "nonn" ]
A208901
[ 0, 0, 4, 8, 24, 48, 112, 224, 480, 960, 1984, 3968, 8064, 16128, 32512, 65024, 130560, 261120, 523264, 1046528, 2095104, 4190208, 8384512, 16769024, 33546240, 67092480, 134201344, 268402688, 536838144, 1073676288, 2147418112, 4294836224, 8589803520 ]
[ "nonn", "easy" ]
A091826
[ 1, 3, 54, 1866, 10958530, 1523289156, 71965034739952, 22713955095665176, 4.1973463761953505e+21, 1.2078620682710278e+30, 1.0682383052544432e+33, 1.5629620371940402e+42, 3.510829028264238e+48 ]
[ "nonn" ]
A291823
[ 1, 1, 2, 5, 14, 42, 132, 429, 1430, 4861, 16785, 58708, 207557, 740520, 2662812, 9640581, 35112513, 128563215, 472951884, 1747233370, 6479450415, 24111470952, 90006390290, 336953657070, 1264770431964, 4758911027946, 17946417454046, 67818937355227, 256781370248500 ]
[ "nonn" ]
A323059
[ 4, 6, 8, 12, 20, 12, 24, 24, 60, 60, 12, 30, 24, 60, 48, 120, 24, 60 ]
[ "nonn", "fini", "more" ]
A315375
[ 1, 6, 11, 14, 16, 24, 26, 38, 42, 48, 48, 54, 55, 68, 70, 82, 81, 84, 84, 94, 98, 112, 114, 120, 116, 120, 125, 138, 142, 156, 151, 154, 152, 162, 170, 182, 186, 192, 184, 190, 195, 208, 214, 226, 221, 224, 220, 234, 242, 252 ]
[ "nonn" ]
A164521
[ 3373, 753569, 2146687, 3048623, 6539201, 8120599, 10218311, 17373977, 18609623, 19034161, 32461757, 44738873, 59776469, 69426529, 72511711, 77854481, 88121123, 116930167, 133432829, 299418307, 338608871, 413493623, 458314009, 679151437 ]
[ "nonn" ]
A096110
[ 1, 1, 1, 1, 1, 1, 2, 4, 1, 1, 4, 7, 1, 1, 3, 4, 5, 9, 1, 1, 3, 9, 1, 9, 11, 1, 1, 1, 4, 13, 16, 1, 7, 13, 1, 4, 5, 6, 7, 9, 11, 16, 17, 1, 1, 4, 16, 1, 3, 5, 9, 15, 1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 1, 1, 6, 11, 16, 21, 1, 3, 9, 1, 4, 7, 10, 13, 16, 19, 22, 25, 1, 9, 25, 1, 7, 16, 20, 23, 24, 25 ]
[ "nonn", "tabf" ]
A286356
[ 0, 2, 5, 7, 9, 23, 14, 29, 12, 31, 20, 80, 27, 40, 31, 121, 35, 80, 44, 94, 40, 50, 54, 302, 18, 61, 38, 109, 65, 499, 77, 497, 50, 73, 40, 668, 90, 86, 61, 328, 104, 532, 119, 125, 94, 100, 135, 1178, 25, 94, 73, 142, 152, 302, 50, 355, 86, 115, 170, 1894, 189, 131, 109, 2017, 61, 566, 209, 160, 100, 532, 230, 2630, 252, 148, 94, 179, 50, 601, 275, 1228, 138 ]
[ "nonn" ]
A024719
[ 1, 2, 7, 35, 200, 1201, 7389, 46149, 291306, 1853581, 11868586, 76380826, 493606726, 3201081874, 20821158234, 135776966762, 887393271311, 5811082966886, 38119865826421, 250447855600321, 1647729357535486, 10854207824989832, 71581930485576630, 472560922429972900, 3122648143126315500 ]
[ "nonn" ]
A061085
[ 4, 8, 12, 16, 170, 204, 238, 272, 306, 340, 374, 408, 442, 476, 510, 544, 578, 612, 646, 680, 714, 748, 782, 816, 850, 884, 918, 952, 986, 1020, 1054, 1088, 1122, 1156, 1190, 1224, 1258, 1292, 1326, 1360, 1394, 1428, 1462, 1496, 1530, 1564, 1598, 1632, 1666 ]
[ "nonn", "base" ]
A220284
[ 4, 31, 139, 1411, 9430, 63154, 452515, 3130768, 21630714, 150540232, 1043064746, 7226190511, 50094800811, 347052655839, 2404198149909, 16655726484462, 115373519626103, 799165840938429, 5535587924914620, 38342402997836990 ]
[ "nonn" ]
A140125
[ 1373, 1459, 1301, 1877, 1231, 1319, 1163, 1741, 1097, 1187, 1033, 1613, 971, 1063, 911, 1493, 853, 947, 797, 1381, 743, 839, 691, 1277, 641, 739, 593, 1181, 547, 647, 503, 1093, 461, 563, 421, 1013, 383, 487, 347, 941, 313, 419, 281, 877, 251, 359, 223, 821, 197 ]
[ "nonn", "fini", "full", "uned" ]