id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A144015
[ 1, 1, 5, 29, 265, 3001, 42125, 696149, 13296145, 287706481, 6959431445, 186061833869, 5448382252825, 173418192216361, 5961442393047965, 220112963745653200, 8687730877758518000, 365023930617143800000, 1.626642033478346e+22, 7.662977345218129e+23 ]
[ "nonn" ]
A249053
[ 1, 2, 4, 5, 6, 8, 11, 12, 13, 14, 17, 18, 20, 23, 24, 25, 26, 29, 30, 31, 32, 37, 38, 41, 42, 44, 45, 47, 48, 53, 54, 55, 59, 60, 62, 63, 67, 68, 71, 72, 73, 74, 79, 80, 81, 82, 83, 84, 89, 90, 97, 98, 101, 102...
[ "nonn" ]
A260710
[ 1, 1, 2, 3, 6, 9, 16, 25, 43, 69, 116, 188, 313, 511, 846, 1386, 2288, 3756, 6191, 10174, 16756, 27552, 45357, 74604, 122787, 201996, 332414, 546901, 899946, 1480699, 2436459, 4008858, 6596366, 10853563, 17858788, 29384804, 48350401, 79555943...
[ "nonn", "easy" ]
A035539
[ 0, 0, 0, 1, 0, 0, 4, 0, 0, 11, 0, 0, 27, 0, 0, 59, 0, 0, 123, 0, 0, 241, 0, 0, 458, 0, 0, 838, 0, 0, 1498, 0, 0, 2608, 0, 0, 4459, 0, 0, 7473, 0, 0, 12339, 0, 0, 20058, 0, 0, 32197, 0, 0, 51027, 0, 0, 80003, ...
[ "nonn" ]
A194171
[ 0, 1, 1, 2, 3, 3, 3, 4, 5, 5, 5, 6, 6, 7, 7, 8, 8, 8, 9, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 15, 16, 16, 16, 16, 17, 18, 18, 19, 20, 20, 20, 21, 22, 22, 22, 23, 24, 24, 24, 25, 26, 26, 26, 27, 27, 27, ...
[ "nonn" ]
A007474
[ 1, 0, 1, 2, 7, 36, 300, 3218, 42335, 644808, 11119515, 213865382, 4537496680, 105270612952, 2651295555949, 72042968876506, 2100886276796969, 65446290562491920, 2169090198219291000, 76211647261082300000, 2.8296128060298735e+21 ]
[ "nonn", "nice" ]
A060400
[ 101, 103, 127, 131, 149, 151, 163, 167, 181, 191, 307, 311, 421, 431, 433, 457, 461, 467, 487, 491, 503, 521, 523, 563, 641, 653, 659, 673, 683, 691, 701, 719, 727, 733, 743, 751, 761, 769, 787, 797, 809, 811, 821, 823, 941, 9...
[ "base", "easy", "nonn" ]
A075070
[ 1, 2, 4, 32, 288, 576, 6912, 13824, 207360, 3317760, 59719680, 1194393600, 25082265600, 50164531200, 1203948748800, 30098718720000, 60197437440000, 1625330810880000, 45509262704640000, 1365277881139200000 ]
[ "nonn" ]
A168886
[ 1, 17, 272, 4352, 69632, 1114112, 17825792, 285212672, 4563402752, 73014444032, 1168231104512, 18691697672192, 299067162755072, 4785074604081152, 76561193665298430, 1224979098644775000, 19599665578316400000 ]
[ "nonn" ]
A049664
[ 0, 1, 19, 342, 6138, 110143, 1976437, 35465724, 636406596, 11419853005, 204920947495, 3677157201906, 65983908686814, 1184033199160747, 21246613676206630, 381255012972558660, 6841343619829849000, 122762930143964730000, 2.202891398971535e+21 ]
[ "nonn", "easy" ]
A015910
[ 0, 0, 2, 0, 2, 4, 2, 0, 8, 4, 2, 4, 2, 4, 8, 0, 2, 10, 2, 16, 8, 4, 2, 16, 7, 4, 26, 16, 2, 4, 2, 0, 8, 4, 18, 28, 2, 4, 8, 16, 2, 22, 2, 16, 17, 4, 2, 16, 30, 24, 8, 16, 2, 28, 43, 32, 8, 4, 2, 16,...
[ "nonn" ]
A079515
[ 1, 10, 105, 1198, 14506, 183284, 2390121, 31933830, 434920398, 6016012236, 84289034154, 1193717733900, 17060985356980, 245768668712296, 3564709196133737, 52015567131639800, 763050542202081300, 11246882679872657000, 166478073780305330000, 2.473696423451622e+21 ]
[ "nonn" ]
A381891
[ 1, 0, 2, 0, 3, 6, 0, 4, 10, 14, 0, 5, 19, 28, 33, 0, 6, 28, 52, 64, 70, 0, 7, 44, 93, 127, 142, 149, 0, 8, 60, 152, 228, 272, 290, 298, 0, 9, 85, 242, 404, 507, 561, 582, 591, 0, 10, 110, 370, 672, 904, 1034, 109...
[ "nonn", "tabl" ]
A221174
[ -4, 5, 6, 17, 40, 97, 234, 565, 1364, 3293, 7950, 19193, 46336, 111865, 270066, 651997, 1574060, 3800117, 9174294, 22148705, 53471704, 129092113, 311655930, 752403973, 1816463876, 4385331725, 10587127326, 25559586377, 61706300080, 148972186537, 35965067315...
[ "sign", "easy" ]
A051226
[ 4, 8, 68, 76, 124, 152, 188, 236, 244, 248, 284, 376, 404, 412, 428, 436, 472, 488, 548, 596, 604, 628, 668, 724, 788, 824, 844, 872, 892, 908, 916, 964, 1028, 1052, 1076, 1084, 1132, 1156, 1208, 1244, 1252, 1256, 1268, 1324, 13...
[ "nonn", "nice", "easy" ]
A389035
[ 2, 3, 5, 4, 7, 1, 7, 3, 3, 1, 6, 7, 3, 9, 5, 3, 0, 9, 4, 2, 4, 7, 4, 6, 3, 0, 3, 8, 3, 8, 3, 6, 2, 5, 1, 2, 6, 6, 0, 9, 8, 0, 6, 1, 7, 1, 5, 8, 3, 2, 3, 7, 9, 5, 2, 2, 5, 5, 3, 9, 6, 6, 8, 3...
[ "nonn", "cons" ]
A287537
[ 1, 3, 3, 14, 7, 63, 15, 248, 31, 1022, 63, 4071, 127, 16380, 247, 65438, 511, 262135, 991, 1048191, 2047, 4194255, 3967, 16775679, 8167, 67108671, 15871, 268429287, 32703, 1073741055, 63463, 4294942655, 130815, 17179866087, 253887, 68719378175, ...
[ "nonn", "easy" ]
A049621
[ 0, 1, 4, 8, 12, 18, 24, 30, 38, 48, 56, 66, 76, 86, 102, 118, 128, 142, 156, 170, 192, 214, 228, 246, 268, 288, 312, 338, 356, 380, 404, 422, 452, 484, 514, 550, 576, 598, 634, 674, 700, 732, 764, 790, 836, 882, 908, 942, ...
[ "nonn" ]
A214781
[ 2, 4, 2, 4, 5, 10, 6, 0, 10, 7, 0, 10, 12, 22, 8, 0, 16, 10, 11, 28, 0, 0, 9, 0, 48, 40, 34, 22, 0, 34, 0, 0, 0, 16, 28, 10, 36, 0, 18, 0, 18, 0, 17, 0, 34, 22, 14, 0, 54, 148, 16, 40, 52, 34, 0, 0, 11, ...
[ "nonn" ]
A365086
[ 1, 1, -2, -2, 15, -4, -122, 204, 903, -3374, -4635, 43539, -13233, -475123, 873392, 4244591, -16906773, -24952174, 244162840, -74520792, -2901715074, 5483226036, 27740164293, -112969486284, -172903931727, 1714556657881, -513739179725, -21235809823325 ]
[ "sign" ]
A111346
[ 14348908, 134217729, 1073741825, 139314069505, 231928233985, 264479053825, 282429536482, 618475290625, 705277476865, 3570467226625, 4398046511105, 8349416423425, 21134460321793, 35664401793025, 91507169819845 ]
[ "easy", "nonn" ]
A060033
[ 51, 55, 57, 58, 59, 60, 76, 80, 82, 82, 99, 104, 110, 113, 115, 117, 122, 123, 126, 127, 132, 135, 138, 144, 147, 149, 151, 152, 154, 157, 158, 159, 159, 166, 179, 184, 185, 188, 189, 191, 192, 193 ]
[ "nice", "nonn" ]
A351265
[ 1, 5, 10, 5, 26, 50, 50, 5, 10, 130, 122, 50, 170, 250, 260, 5, 290, 50, 362, 130, 500, 610, 530, 50, 26, 850, 10, 250, 842, 1300, 962, 5, 1220, 1450, 1300, 50, 1370, 1810, 1700, 130, 1682, 2500, 1850, 610, 260, 2650, 2210, ...
[ "nonn", "mult" ]
A023864
[ 1, 2, 7, 11, 27, 44, 91, 147, 278, 450, 806, 1304, 2257, 3652, 6181, 10001, 16677, 26984, 44551, 72085, 118220, 191284, 312300, 505312, 822513, 1330854, 2161907, 3498039, 5674751, 9181940 ]
[ "nonn" ]
A119723
[ 1, 3, 13, 113, 2861, 709, 45601, 408809, 49595489, 2426258561, 485934733, 485460413, 2429223061, 2427480661, 1284905668069, 217047437215261, 182605590283392900, 36508279615059380, 36518889897389300 ]
[ "frac", "nonn" ]
A093076
[ 1, 2, 1, 1, 29, 1, 161, 207, 163047, 19952084, 1395363, 37433304, 1894884996, 22006266, 5012512, 159420748, 7687917, 856655287905375, 57388884947, 1344799562797, 46899771521770740, 74069716582896000, 382520592142795100000, 1.934066089797053e+22 ]
[ "nonn" ]
A259694
[ 0, 1, 195, 3496, 38195, 192780, 977386, 3216320, 9860049, 27321870, 65803045, 144005856, 308944925, 635774072, 1112550390, 2153146880, 3618341556, 6391671525, 9949570455, 16725562160, 24691972080, 40979569092, 56807498030, 89450231040, 120404165825 ]
[ "nonn" ]
A388993
[ 3, 2, 5, 5, 3, 7, 7, 7, 5, 11, 11, 11, 11, 7, 13, 3, 13, 13, 13, 11, 17, 2, 5, 17, 17, 17, 13, 19, 13, 3, 7, 19, 19, 19, 17, 23, 17, 17, 5, 11, 23, 23, 23, 19, 29, 2, 19, 19, 7, 13, 29, 29, 29, 23, 31, 19, ...
[ "nonn", "tabl" ]
A130996
[ 0, 1, 3, 2, 7, 8, 5, 6, 4, 17, 20, 21, 18, 22, 13, 12, 15, 19, 16, 10, 14, 11, 9, 45, 48, 61, 54, 57, 62, 58, 50, 55, 46, 63, 49, 59, 64, 36, 32, 31, 35, 34, 41, 40, 52, 56, 60, 43, 47, 53, 44, 26, 27, 38, 51...
[ "nonn" ]
A321590
[ 4, 50, 189, 1863, 10449, 447849, 4449249, 5745249, 3606422049, 16554218751, 105265530369, 1957645712385 ]
[ "nonn", "more" ]
A119191
[ 2, 10, 129, 841229, 26014826114, 3417172921745, 10520014765729 ]
[ "nonn", "base", "more" ]
A080952
[ 3, 21, 112, 504, 2016, 7392, 25344, 82368, 256256, 768768, 2236416, 6336512, 17547264, 47628288, 127008768, 333398016, 862912512, 2205220864, 5571084288, 13927710720, 34487664640, 84651540480, 206108098560, 498094571520 ]
[ "nonn", "easy" ]
A149184
[ 1, 1, 4, 10, 36, 123, 451, 1715, 6570, 26133, 104173, 424824, 1744847, 7246790, 30390296, 128177201, 545456346, 2331067303, 10029452264, 43334144418, 188114344033, 820064019107, 3587139466604, 15751654599946, 69360717243894, 306415608927587, 1357105949531911, 60...
[ "nonn", "walk" ]
A185502
[ 2887, 207705, 5616321, 195165583, 6164545679, 201869155765 ]
[ "nonn" ]
A215140
[ 1, 1, 2, 7, 2, 8, 2, 0, 1, 7, 2, 8, 3, 2, 6, 5, 8, 9, 0, 3, 4, 4, 3, 7, 9, 7, 2, 3, 2, 7, 2, 5, 0, 6, 1, 3, 5, 6, 6, 1, 4, 1, 2, 3, 0, 9, 9, 8, 4, 9, 3, 1, 2, 2, 4, 5, 4, 0, 9, 6, 5, 5, 6, 2...
[ "nonn", "cons" ]
A112498
[ 3, 29, 164, 726, 2805, 9975, 33630, 109424, 347519, 1085313, 3349848, 10253994, 31203945, 94561643, 285716018, 861472836, 2593592883, 7800176565, 23441423340, 70410252350, 211411111133, 634610819679, 1904620987014 ]
[ "nonn", "easy" ]
A292185
[ 177, 488, 1159, 2460, 4781, 8656, 14787, 24068, 37609, 56760, 83135, 118636, 165477, 226208, 303739, 401364, 522785, 672136, 854007, 1073468, 1336093, 1647984, 2015795, 2446756, 2948697, 3530072, 4199983, 4968204, 5845205, 6842176, 7971051, 9244532, 10...
[ "nonn", "easy" ]
A336369
[ 3, 5, 7, 13, 19, 29, 37, 43, 47, 53, 61, 71, 79, 89, 101, 103, 107, 113, 131, 137, 139, 149, 151, 163, 173, 181, 193, 197, 199, 223, 229, 239, 251, 257, 263, 269, 271, 281, 293, 307, 311, 313, 317, 337, 347, 349, 359, 373,...
[ "nonn" ]
A016725
[ 1, 6, 6, 30, 6, 30, 30, 54, 6, 102, 30, 78, 30, 78, 54, 150, 6, 102, 102, 126, 30, 270, 78, 150, 30, 150, 78, 318, 54, 174, 150, 198, 6, 390, 102, 270, 102, 222, 126, 390, 30, 246, 270, 270, 78, 510, 150, 294, 30, 390,...
[ "nonn", "look" ]
A385056
[ 11, 139, 181, 193, 241, 389, 421, 811, 839, 881, 983, 1181, 1193, 1319, 1777, 1811, 1913, 1931, 1999, 2141, 2221, 2269, 2411, 2663, 3119, 3191, 3313, 3331, 3463, 3643, 3833, 3889, 3911, 4211, 4363, 4441, 4691, 6229, 6263, 6343, 6491, ...
[ "nonn", "base" ]
A130757
[ 1, 3, -1, 15, -10, 1, 105, -105, 21, -1, 945, -1260, 378, -36, 1, 10395, -17325, 6930, -990, 55, -1, 135135, -270270, 135135, -25740, 2145, -78, 1, 2027025, -4729725, 2837835, -675675, 75075, -4095, 105, -1, 34459425, -91891800, 64324260, ...
[ "sign", "tabl", "easy" ]
A055375
[ 1, 1, 1, 2, 3, 2, 3, 7, 7, 3, 5, 14, 21, 14, 5, 7, 26, 48, 48, 26, 7, 11, 45, 103, 131, 103, 45, 11, 15, 75, 198, 312, 312, 198, 75, 15, 22, 120, 366, 674, 830, 674, 366, 120, 22, 30, 187, 637, 1359, 1961, 1961, 13...
[ "nonn", "tabl" ]
A160740
[ 0, 4, 8, 16, 24, 32, 40, 56, 72, 80, 88, 104, 120, 136, 160, 200, 232, 240, 248, 264, 280, 296, 320, 360, 392, 408, 432, 472, 512, 560, 640, 744, 808, 816, 824, 840, 856, 872, 896, 936, 968, 984, 1008, 1048, 1088, 1136, 1216...
[ "nonn" ]
A140293
[ 4, 5, 6, 7, 8, 16, 17, 21, 34, 39, 45, 50, 72, 73, 76, 133, 164, 202, 216, 221, 280, 281, 496, 605, 2532, 2967, 3337, 8711, 10977, 13724, 15250, 18160, 20943, 33684, 41400 ]
[ "nonn", "more" ]
A273492
[ 10, 12, 14, 16, 18, 21, 23, 25, 27, 29, 30, 32, 34, 36, 38, 41, 43, 45, 47, 49, 50, 52, 54, 56, 58, 61, 63, 65, 67, 69, 70, 72, 74, 76, 78, 81, 83, 85, 87, 89, 90, 92, 94, 96, 98, 1000, 1001, 1002, 1004, 1005, 1006, ...
[ "easy", "base", "nonn" ]
A060935
[ 1, 2, 4, 12, 72, 1010, 36302, 3501500, 984382830, 820391106394, 2231837962830894, 19443994569352598000, 6.112485440677594e+23, 6.537405914937015e+28, 2.7613396368509695e+34 ]
[ "nonn", "easy" ]
A103682
[ 1, 1, 2, 1, 2, 1, 2, 1, 2, 3, 1, 2, 1, 2, 1, 2, 3, 1, 2, 1, 2, 3, 1, 2, 1, 2, 3, 1, 2, 1, 2, 3, 1, 1, 3, 1, 2, 1, 2, 1, 2, 3, 1, 2, 1, 2, 3, 1, 2, 1, 2, 3, 1, 2, 1, 2, 3, 1, 1, 3, 1, 2, 1, 2...
[ "nonn" ]
A216484
[ 3, 5, 7, 11, 13, 17, 19, 29, 37, 41, 43, 53, 59, 61, 67, 73, 79, 83, 97, 101, 103, 107, 109, 131, 137, 139, 149, 151, 157, 163, 173, 179, 181, 193, 197, 199, 211, 227, 229, 241, 251, 269, 271, 277, 283, 293, 307, 313, 31...
[ "nonn", "easy" ]
A077091
[ 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 38, 39, 42, 44, 45, 46, 49, 51, 54, 55, 56, 57, 58, 62, 63, 65, 68, 69, 70, 74, 75, 77, 82, 85, 86, 87, 91, 93, 94, 95, 99...
[ "nonn" ]
A099490
[ 2, 2, 6, 8, 8, 8, 8, 8, 15, 15, 18, 18, 18, 18, 18, 18, 18, 18, 27, 27, 27, 27, 27, 27, 32, 32, 32, 32, 32, 32, 32, 32, 45, 45, 45, 45, 45, 45, 45, 45, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 63, 63, 63, 63, ...
[ "nonn" ]
A087814
[ 1, 1, 13, 15, 25, 39, 47, 51, 69, 81, 101, 139, 249, 261, 275, 291, 739, 1243, 2243 ]
[ "nonn" ]
A189079
[ 1, 2, 10, 13, 14, 17, 18, 19, 20, 23, 24, 25, 26, 27, 28, 30, 32, 33, 35, 36, 37, 38, 39, 40, 42, 45, 46, 49, 50, 51, 52, 53, 54, 55, 56, 59, 63, 65, 69, 70, 71, 72, 73, 74, 75, 76, 77, 79, 83, 89, 91, 97, 98, ...
[ "nonn" ]
A267743
[ 6, 5, 26, 123, 633, 3428, 18899, 106599, 618585, 3674665, 22190640, 135570897, 835884024, 5196879659, 32568136350, 205609418532, 1306436325774, 8346088687406, 53563228719519, 345155128538327, 2232566289999786 ]
[ "nonn" ]
A321042
[ 1, 1, 5, 37, 491, 12763, 690756, 70250881, 13805853214, 5567873958982, 4386114219458332, 6711687353310594000, 2.104832739950456e+22, 1.3121486079610002e+26, 1.6038926164517673e+30, 4.02966054420981e+34, 2.03140644075838e+39 ]
[ "nonn" ]
A097192
[ 1, 24, 612, 15912, 417690, 11027016, 292215924, 7764594552, 206732329947, 5512862131920, 147193418922264, 3934078651195056, 105236603919467740, 2817102935690367500, 75458114348849120000, 2.0222774645491567e+21 ]
[ "nonn" ]
A108149
[ 1, -1, 1, 0, 0, 1, 0, 1, -1, 1, 1, 0, 1, 0, 1, -1, 2, -1, 2, -1, 1, 1, 0, 3, 0, 2, 0, 1, -1, 4, -3, 5, -2, 3, -1, 1, 3, 0, 6, 0, 6, 0, 3, 0, 1, -3, 9, -6, 12, -6, 9, -3, 4, -1, 1, 6, 0, 15, 0, 15, ...
[ "sign", "tabl" ]
A286563
[ 1, 1, 1, 1, 0, 1, 1, 2, 0, 1, 1, 0, 0, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 1, 3, 0, 1, 0, 0, 0, 1, 1, 0, 2, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0...
[ "nonn", "tabl" ]
A319092
[ 1, 1, 2, 3, 4, 5, 6, 1, 4, 10, 20, 35, 56, 70, 76, 73, 60, 36, 1, 6, 21, 56, 126, 252, 441, 684, 954, 1204, 1365, 1344, 1169, 882, 540, 216, 1, 8, 36, 120, 330, 792, 1688, 3232, 5619, 8944, 13088, 17568, 21642, 24456, 25...
[ "tabf", "nonn", "easy" ]
A064858
[ 1, 2, 3, 4, 30, 60, 14, 840, 315, 504, 6930, 9240, 180180, 360360, 30030, 720720, 2042040, 2450448, 10581480, 1989680, 58198140, 232792560, 1338557220, 254963280, 13385572200, 26771144400, 5736673800, 6177956400, 291136195350 ]
[ "nonn", "frac" ]
A304872
[ 1, 2, 3, 4, 6, 11, 7, 8, 5, 10, 15, 12, 16, 17, 14, 19, 21, 13, 22, 23, 18, 26, 31, 27, 32, 33, 9, 35, 37, 29, 38, 39, 30, 41, 46, 24, 47, 48, 34, 50, 54, 42, 55, 56, 25, 60, 63, 43, 64, 65, 45, 67, 69, 28, 7...
[ "nonn" ]
A160073
[ 1, 9, -257, -8397, 185025, 13017969, -195530529, -28160215893, 209183288577, 78027873371865, 65915296495551, -263140974328443740, -2613341841326452000, 1.0437797153042297e+21, 2.08770414885265e+22, -4.7512722394228764e+24, -1.4860805050163524e+26 ]
[ "sign", "frac" ]
A025464
[ 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 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...
[ "nonn" ]
A343876
[ 1, 3, 4, 10, 6, 47, 8, 28, 21, 117, 12, 118, 14, 219, 248, 72, 18, 177, 20, 274, 472, 519, 24, 284, 55, 717, 90, 494, 30, 992, 32, 176, 1136, 1209, 1272, 462, 38, 1503, 1576, 628, 42, 1806, 44, 1126, 834, 2187, 48, 664, ...
[ "nonn" ]
A303480
[ 1, 3, 4, 17, 53, 433, 456, 901, 1052, 4011, 14504, 15111, 156408, 245423, 328408, 911340, 2263141, 13736475, 20092485, 37903271, 60003559, 78733423, 84206981, 234095587, 319691535, 986119609, 1488787296, 6139123252, 8663152552, 11909530004, 19226378456, ...
[ "nonn" ]
A302531
[ 0, 61, 497, 902, 3683, 23909, 128242, 465323, 1918153, 10153650, 48825739, 206962001, 913773720, 4366054069, 20367538805, 90798363146, 409867362675, 1900191504221, 8749921654714, 39674026618581, 180520404483627 ]
[ "nonn" ]
A010044
[ 0, 8, 256, 8480, 323584, 14219648, 712769536, 40231339520, 2529742618624, 175465112250368, 13316649656713216, 1097902932846018600, 97741786751619830000, 9.345711964094187e+21, 9.553506543719344e+23 ]
[ "nonn" ]
A288901
[ 1, 2, 6, 13, 28, 56, 123, 243, 496, 993, 2017, 4033, 8157, 16285, 32673, 65305, 130921, 261729, 523905, 1047729, 2096417, 4192401, 8387329, 16774001, 33551472, 67100801, 134213285, 268422741, 536860069, 1073709657, 2147466385, 4294916961, 8589891865 ]
[ "nonn", "easy" ]
A143550
[ 1, 1, 2, 11, 38, 257, 1040, 7646, 33374, 256718, 1171454, 9270560, 43558064, 351490167, 1686018600, 13799914556, 67223728270, 556203232266, 2741975026412, 22880729474777, 113875773363274, 956800135969601 ]
[ "nonn" ]
A037746
[ 2, 15, 90, 541, 3248, 19491, 116946, 701677, 4210064, 25260387, 151562322, 909373933, 5456243600, 32737461603, 196424769618, 1178548617709, 7071291706256, 42427750237539, 254566501425234, 1527399008551405 ]
[ "nonn", "base" ]
A057654
[ 1, 95, 99, 146, 323, 377, 1095, 1102, 1351, 1368, 1630, 1919, 1943, 2261, 2639, 2743, 3915, 4607, 4743, 5042, 5045, 5183, 5249, 6347, 6497, 7389, 8265, 8307, 8749, 9407, 9701, 10877, 12535, 13184, 13253, 14344, 14535, 16965, 18405, 19493,...
[ "easy", "nonn" ]
A174699
[ 0, 0, 1, 0, 1, 1, 0, 1, 4, 1, 0, 1, 1, 4, 4, 0, 1, 4, 2, 7, 1, 0, 1, 1, 1, 1, 4, 1, 0, 1, 4, 4, 4, 5, 4, 4, 0, 1, 1, 2, 7, 9, 3, 1, 1, 0, 1, 4, 1, 1, 3, 12, 4, 4, 1, 0, 1, 1, 4, 4, 1, 9, 1, ...
[ "nonn", "tabl", "easy" ]
A228339
[ 3, 9, 30, 102, 352, 1230, 4344, 15483, 55626, 201246, 732564, 2681223, 9861342, 36428320, 135100620, 502841295, 1877678370, 7032454470, 26410804020, 99437742720, 375260126904, 1419223506516, 5378236459328, 20419260060462, 77659985060772, 295844249258796, 112873849...
[ "nonn", "easy" ]
A125075
[ 10, 26, 57, 130, 304, 720, 1653, 3933, 9489, 22954, 55860, 136705, 337951, 843306, 2110436, 5311239, 13432130, 34143472, 87069907, 222858046, 572210219, 1473600000, 3804733479 ]
[ "nonn" ]
A249340
[ 1, 3, 5, 13, 20, 39, 50, 70, 80, 97, 131, 142, 193, 240, 257, 296, 322, 379, 397, 435, 478, 490, 542, 569, 629, 736, 758, 764, 828, 835, 872, 1067, 1100, 1209, 1214, 1369, 1414, 1468, 1514, 1549, 1606, 1681, 1700, 1853, 1871, ...
[ "nonn" ]
A299754
[ 1, 3, 10, 25, 126, 127, 1716, 2241, 18469, 15231, 352716, 36973, 5200300, 1799995, 30333601, 24331777, 1166803110, 12247363, 17672631900, 723276561 ]
[ "nonn" ]
A130920
[ 0, 1, 2, 3, 4, 6, 5, 7, 8, 9, 14, 10, 16, 19, 11, 15, 12, 17, 18, 13, 20, 21, 22, 23, 37, 24, 42, 51, 25, 38, 26, 44, 47, 27, 53, 56, 60, 28, 39, 29, 43, 52, 30, 40, 31, 45, 48, 32, 54, 49, 50, 33, 41, 34, 46...
[ "nonn" ]
A116425
[ 3, 2, 4, 6, 9, 7, 9, 6, 0, 3, 7, 1, 7, 4, 6, 7, 0, 6, 1, 0, 5, 0, 0, 0, 9, 7, 6, 8, 0, 0, 8, 4, 7, 9, 6, 2, 1, 2, 6, 4, 5, 4, 9, 4, 6, 1, 7, 9, 2, 8, 0, 4, 2, 1, 0, 7, 3, 1, 0, 9, 8, 8, 7, 8...
[ "nonn", "cons", "easy" ]
A149140
[ 1, 1, 4, 9, 36, 110, 440, 1485, 6138, 21902, 92050, 339946, 1446888, 5494374, 23538850, 91150203, 392888970, 1545871468, 6689452848, 26641201900, 115706733198, 465593151464, 2027309413796, 8225800678704, 35902335117164, 146733053157966, 641572595904506, 26380467...
[ "nonn", "walk" ]
A316250
[ 7, 4, 3, 6, 8, 5, 3, 1, 4, 3, 2, 2, 9, 1, 6, 3, 7, 3, 3, 9, 5, 0, 6, 8, 3, 9, 4, 3, 3, 9, 2, 1, 5, 2, 8, 3, 4, 7, 9, 6, 4, 1, 8, 1, 0, 4, 8, 8, 3, 5, 4, 5, 1, 0, 8, 7, 2, 3, 2, 9, 4, 3, 8, 8...
[ "nonn", "cons" ]
A386596
[ 0, 1, 2, 4, 3, 10, 4, 12, 10, 15, 5, 31, 6, 21, 25, 30, 7, 45, 8, 48, 34, 29, 9, 83, 24, 34, 39, 65, 10, 102, 11, 71, 48, 42, 52, 134, 12, 47, 56, 128, 13, 141, 14, 94, 109, 55, 15, 199, 43, 108, 70, 109, 16, 1...
[ "nonn", "look" ]
A130510
[ 9, 32, 49, 64, 81, 81, 125, 128, 225, 243, 245, 250, 256, 256, 289, 343, 375, 512, 512, 513, 539, 625, 625, 625, 676, 729, 729, 729, 729, 961, 968, 1025, 1029, 1216, 1331, 1331, 1331, 1369, 1587, 1681, 2048, 2048, 2048, 2057, 21...
[ "nonn" ]
A247721
[ 168, 456, 1248, 3424, 9392, 25822, 71060, 195536, 537880, 1480026, 4073228, 11209522, 30845400, 84880220, 233584180, 642804172, 1768901108, 4867756146, 13395492168, 36862857286, 101441854028, 279154735896, 768198993968 ]
[ "nonn" ]
A210435
[ 1, 1, 2, 3, 3, 4, 5, 5, 6, 7, 7, 8, 9, 10, 10, 11, 12, 12, 13, 14, 14, 15, 16, 17, 17, 18, 19, 19, 20, 21, 21, 22, 23, 24, 24, 25, 26, 26, 27, 28, 28, 29, 30, 31, 31, 32, 33, 33, 34, 35, 35, 36, 37, 38, 38, ...
[ "nonn", "base", "easy" ]
A061900
[ 28, 36, 45, 120, 136, 153, 171, 276, 300, 325, 351, 378, 496, 528, 630, 666, 780, 820, 990, 1035, 1128, 1176, 1225, 1275, 1431, 1485, 1540, 1596, 1953, 2016, 2080, 2556, 2628, 2775, 2850, 3160, 3240, 3321, 3828, 3916, 4005, 4095, 45...
[ "nonn" ]
A212883
[ 2, 6, 40, 76, 144, 146, 148, 166, 168, 174, 186, 192, 210, 220, 222, 230, 238, 240, 258, 290, 338, 364, 372, 378, 384, 398, 400, 402, 442, 446, 482, 492, 532, 536, 554, 570, 606, 628, 654, 700, 740, 882, 888, 944, 954, 964, ...
[ "nonn" ]
A215895
[ 457, 677, 809, 829, 1039, 1249, 1453, 1459, 1511, 1721, 2083, 2879, 3203, 3499, 3527, 3581, 3919, 4129, 4139, 4157, 4273, 4339, 4549, 5519, 5689, 5711, 5843, 6143, 6329, 6359, 6619, 6803, 6949, 7001, 7013, 7103, 7109, 7211, 7393, 7459, ...
[ "nonn" ]
A072794
[ 0, 1, 2, 3, 4, 5, 6, 7, 10, 8, 9, 12, 11, 14, 15, 16, 21, 13, 23, 17, 18, 36, 19, 20, 25, 22, 27, 28, 29, 40, 30, 31, 38, 24, 44, 45, 46, 55, 26, 57, 32, 33, 78, 34, 35, 42, 37, 82, 49, 50, 59, 39, 61, 47, 48...
[ "nonn" ]
A300813
[ 2, 4, 8, 6, 5, 10, 7, 14, 9, 12, 21, 20, 18, 16, 24, 27, 36, 30, 40, 11, 22, 13, 26, 15, 32, 50, 48, 33, 28, 44, 45, 55, 64, 60, 72, 84, 42, 96, 39, 80, 52, 17, 34, 19, 38, 63, 65, 54, 66, 112, 75, 78, 90, 91, ...
[ "nonn", "look" ]
A276257
[ 1, 1, 1, 1, 16, 361, 143641, 20741472361, 26888415586959536000, 2.0027337780954763e+36, 2.792338250168532e+67 ]
[ "nonn" ]
A010810
[ 0, 1, 4194304, 31381059609, 17592186044416, 2384185791015625, 131621703842267140, 3909821048582988300, 73786976294838210000, 984770902183611200000, 1e+22, 8.140274938683976e+22 ]
[ "nonn", "mult", "easy" ]
A121383
[ 3, 1, 0, 1, 1, 0, 1, 0, 4, 3, 0, 0, 1, 2, 1, 6, 5, 0, 0, 1, 1, 1, 2, 2, 9, 7, 0, 1, 0, 1, 1, 1, 1, 2, 4, 14, 9, 0, 0, 0, 2, 0, 1, 1, 1, 2, 2, 7, 17, 13, 1, 1, 0, 0, 0, 2, 0, 2, 1, 1, 2, 2, 11,...
[ "easy", "nonn" ]
A388255
[ 1, 7, 7, 7, 7, 2, 0, 3, 6, 9, 6, 0, 4, 2, 6, 5, 5, 3, 4, 8, 0, 6, 6, 2, 0, 9, 5, 7, 4, 2, 4, 4, 3, 9, 4, 5, 2, 1, 0, 1, 0, 3, 5, 2, 0, 3, 2, 7, 9, 4, 2, 9, 9, 2, 1, 3, 1, 6, 6, 7, 2, 6, 5, 7...
[ "nonn", "cons" ]
A332962
[ 6, 24, 30, 54, 60, 96, 84, 270, 210, 216, 240, 504, 450, 384, 486, 336, 1620, 630, 1056, 840, 1368, 750, 924, 1014, 960, 2772, 1320, 3150, 546, 1536, 1386, 1500, 1734, 1560, 3360, 1944, 990, 1344, 2166, 2340, 7320, 7056, 2730, 422...
[ "nonn" ]
A353147
[ 0, 1, 13, 157, 2127, 25547, 331007, 4172107, 52305307, 647665707, 10216432707, 122621414707, 1473657200707, 20126330410707, 241540165130707, 3120702223570707, 37450626705270700, 473627744665470700, 6125757360430071000, 75533532545361070000 ]
[ "nonn", "base", "easy" ]
A134586
[ 1, 2, 1, 4, 2, 1, 7, 14, 7, 16, 8, 4, 2, 1, 5, 10, 5, 12, 6, 3, 3, 5, 9, 15, 23, 33, 45, 59, 75, 93, 93, 96, 48, 24, 12, 6, 3, 24, 12, 6, 3, 7, 15, 27, 43, 63, 87, 115, 147, 183, 183, 188, 94, 47, 67, 92, ...
[ "base", "nonn" ]
A132257
[ 47, 79, 131, 163, 167, 223, 251, 257, 317, 373, 379, 401, 409, 439, 467, 491, 499, 557, 587, 613, 647, 673, 677, 701, 709, 733, 739, 761, 769, 797, 853, 887, 911, 919, 941, 947, 971, 977, 1009, 1039, 1069, 1097, 1123, 1129, 1181...
[ "easy", "nonn" ]
A125148
[ 19, 31, 37, 43, 59, 59, 61, 67, 73, 79, 97, 101, 97, 101, 103, 109, 131, 127, 139, 131, 163, 139, 163, 151, 163, 157, 163, 179, 181, 179, 181, 197, 193, 197, 199, 211, 223, 227, 229, 223, 227, 229, 241, 241, 257, 263, 257, ...
[ "nonn" ]
A331219
[ 1, 4, 9, 16, 25, 30, 36, 49, 64, 81, 90, 100, 108, 120, 121, 143, 144, 154, 169, 182, 196, 225, 256, 289, 306, 324, 340, 360, 361, 399, 400, 408, 418, 432, 441, 462, 475, 480, 484, 494, 525, 529, 532, 546, 550, 572, 576, 5...
[ "nonn", "base" ]
A233577
[ 2, 3, 5, 7, 13, 17, 19, 23, 37, 43, 61, 67, 73, 89, 103, 107, 151, 163, 179, 181, 197, 223, 251, 263, 269, 307, 347, 359, 373, 383, 433, 491, 587, 593, 613, 619, 701, 751, 761, 881, 997, 1019, 1129, 1321, 1439, 1601, 1699, ...
[ "nonn" ]
A166991
[ 1, 1, 3, 12, 57, 300, 1693, 10045, 61890, 392688, 2550843, 16891566, 113660475, 775223595, 5349057132, 37280705406, 262119009927, 1857241951359, 13250054817027, 95110710932424, 686490953423700, 4979704242810870 ]
[ "nonn" ]