id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A006048
[ 1, 3, 6, 8, 12, 18, 21, 27, 36, 38, 42, 48, 52, 60, 72, 78, 90, 108, 111, 117, 126, 132, 144, 162, 171, 189, 216, 218, 222, 228, 232, 240, 252, 258, 270, 288, 292, 300, 312, 320, 336, 360, 372, 396, 432, 438, 450, 468, 4...
[ "nonn" ]
A260258
[ 1, 1, 2, 2, 1, 3, 1, 1, 4, 3, 4, 2, 5, 1, 1, 6, 1, 5, 1, 7, 6, 2, 1, 8, 1, 1, 9, 7, 2, 8, 3, 10, 1, 1, 11, 4, 3, 9, 1, 12, 10, 1, 1, 13, 1, 1, 14, 11, 1, 12, 1, 15, 1, 4, 2, 16, 5, 2, 13, 2, 17, ...
[ "nonn", "tabf" ]
A264962
[ 4, 6, 3, 9, 12, 8, 10, 5, 15, 18, 14, 7, 21, 24, 16, 22, 11, 33, 36, 26, 13, 39, 42, 34, 17, 51, 54, 38, 19, 57, 60, 32, 46, 23, 69, 72, 58, 29, 87, 90, 62, 31, 93, 96, 74, 37, 111, 114, 82, 41, 123, 126, 86, 4...
[ "nonn" ]
A376116
[ 0, 1, 2, 4, 5, 7, 8, 11, 12, 14, 15, 18, 19, 21, 22, 26, 27, 29, 30, 33, 34, 36, 37, 41, 42, 44, 45, 48, 49, 51, 52, 57, 58, 60, 61, 64, 65, 67, 68, 72, 73, 75, 76, 79, 80, 82, 83, 88, 89, 91, 92, 95, 96, 98, ...
[ "nonn" ]
A317475
[ 1, 16, 32, 64, 112, 128, 256, 395, 448, 512, 1024, 1093, 1168, 1368, 1472, 1792, 2013, 2048, 3279, 3344, 3511, 3968, 4096, 5472, 5696, 7168, 7651, 8192, 10533, 14209, 16384, 17488, 19674, 21672, 21888, 22953, 27552, 28672, 31599, 32768, ...
[ "nonn" ]
A289982
[ 41, 71, 101, 137, 149, 179, 191, 197, 227, 239, 269, 281, 311, 347, 419, 431, 461, 569, 599, 617, 641, 659, 809, 821, 827, 857, 881, 1019, 1031, 1049, 1061, 1091, 1151, 1229, 1289, 1301, 1319, 1427, 1451, 1481, 1487, 1607, 1619, 1...
[ "nonn" ]
A140287
[ 0, 0, 1, -1, 0, 1, -3, 2, 1, -5, 8, -4, -7, 18, -20, 9, 32, -56, 49, -25, -120, 161, -123, 82, 401, -445, 328, -284, -1247, 1218, -940, 969, 3712, -3376, 2849, -3185, -10800, 9601, -8883, 10082, 31201, -28085, 27848, -30964, -90...
[ "sign", "tabf", "less" ]
A111899
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 3, 4, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6...
[ "nonn", "base" ]
A128122
[ 1, 2, 10669, 6611474, 43070220513807784 ]
[ "hard", "more", "nonn" ]
A386765
[ 1, 18, 624, 24432, 1008876, 42927318, 1862060124, 81862383432, 3634739070876, 162615605774568, 7319222860673124, 331046648931192450, 15033834910528709000, 685059700337659500000, 3.130748217478249e+22, 1.4343544495771595e+24, 6.585884547374613e+25 ]
[ "nonn" ]
A077459
[ 0, 3, 6, 7, 12, 14, 15, 24, 28, 30, 31, 45, 48, 51, 56, 60, 62, 63, 75, 89, 90, 93, 96, 99, 102, 103, 109, 112, 115, 120, 124, 126, 127, 139, 150, 151, 155, 177, 178, 180, 185, 186, 189, 192, 195, 198, 199, 204, 206, 2...
[ "base", "nonn", "easy" ]
A355842
[ 1, 0, 2, 3, 44, 210, 3054, 27300, 449952, 6020784, 115381080, 2053568880, 45733246536, 1010390340960, 25916586868704, 680621684914080, 19881379012231680, 603034125051738200, 19833651290982167000, 680927283288289200000, 2.495320766225274e+22 ]
[ "nonn" ]
A089755
[ 11, 13, 31, 17, 71, 19, 97, 73, 37, 79, 907, 7, 701, 101, 103, 3, 307, 709, 911, 113, 131, 311, 1103, 1031, 313, 137, 373, 733, 331, 317, 173, 739, 397, 971, 719, 191, 919, 193, 937, 379, 797, 977, 773, 7307, 3079, 7901, 901...
[ "base", "easy", "nonn" ]
A300121
[ 1, 1, 2, 2, 4, 5, 8, 4, 11, 12, 16, 12, 32, 28, 31, 8, 64, 31, 128, 33, 82, 64, 256, 28, 69, 144, 69, 86, 512, 105, 1024, 16, 208, 320, 209, 82, 2048, 704, 512, 86, 4096, 318, 8192, 216, 262, 1536, 16384, 64, 465, 262,...
[ "nonn" ]
A265391
[ 1, 3, 3, 11, 3, 9, 3, 25, 11, 9, 3, 11, 3, 9, 9, 137, 3, 11, 3, 11, 9, 9, 3, 25, 11, 9, 25, 11, 3, 27, 3, 49, 9, 9, 9, 121, 3, 9, 9, 25, 3, 27, 3, 11, 11, 9, 3, 137, 11, 11, 9, 11, 3, 25, 9, 25, 9, 9, ...
[ "nonn", "frac" ]
A094856
[ 1, 5, 29, 217, 2297, 34349, 674965, 16276481, 461527793, 14993138773, 548258687501, 22272738733865, 994870668959209, 48451779617936000, 2554818339078836000, 144990720049391350000, 8.811240401831517e+21, 5.708579633937305e+23, 3.927597393844416e+25 ]
[ "nonn" ]
A055559
[ 2, 29, 2999, 2999999, 29999999, 30000000000000000000, 3e+27, 3e+43, 3e+55 ]
[ "base", "nonn" ]
A380051
[ 1, 1, 2, 1, -12, -15, 526, 1617, -49608, -302111, 8126010, 85724001, -2020009628, -34232466255, 696686324166, 18267485751985, -310973114236944, -12533263924965184, 168118610439268600, 10727427541319225000, -100693940482485600000, -1.1178369799980254e+22 ]
[ "sign" ]
A015697
[ 1, -25, 675, -19575, 606225, -19944225, 693835875, -25422933375, 977745218625, -39350424479625, 1652904664495875, -72294275991774370, 3285576793503860700, -154866859897225100000, 7.558086937740657e+21, -3.813358528951756e+23 ]
[ "sign" ]
A318613
[ 0, 1, 7, 8, 16, 19, 9, 17, 20, 20, 7, 10, 23, 111, 18, 26, 21, 21, 34, 8, 29, 16, 11, 24, 112, 112, 32, 19, 107, 27, 14, 22, 115, 14, 35, 35, 22, 9, 30, 17, 17, 12, 118, 25, 25, 38, 113, 113, 69, 33, 33, 20, 20, ...
[ "nonn" ]
A046432
[ 3, 69, 96, 123, 132, 203, 213, 222, 230, 231, 302, 312, 320, 321, 334, 343, 433, 447, 456, 465, 469, 474, 477, 496, 546, 564, 566, 577, 645, 649, 654, 656, 665, 689, 694, 698, 744, 747, 757, 774, 775, 777, 869, 896, 946, 964, ...
[ "nonn", "base" ]
A230735
[ 2, 66, 2106, 320970, 43853402, 36695929036, 26681634560690, 121531720205091740, 479398570293769100000, 1.1869733818244917e+25 ]
[ "nonn" ]
A108564
[ 0, 1, 1, 2, 4, 8, 15, 29, 56, 18, 118, 122, 134, 239, 136, 136, 456, 679, 147, 1148, 234, 228, 1577, 1378, 1347, 345, 4467, 3577, 3679, 1268, 11299, 12389, 23568, 24458, 11477, 12789, 22279, 137, 24668, 35789, 23788, 23488, 13377, ...
[ "base", "easy", "nonn" ]
A063615
[ 1, 2, 13, 18, 22, 28, 43, 46, 71, 66, 83, 104, 86, 128, 127, 125, 139, 142, 124, 190, 195, 185, 202, 216, 215, 265, 235, 245, 244, 263, 278, 282, 274, 277, 286, 310, 320, 323, 432, 348, 376, 448, 400, 392, 459, 446, 441, 4...
[ "base", "nonn" ]
A126646
[ 1, 3, 7, 15, 31, 63, 127, 255, 511, 1023, 2047, 4095, 8191, 16383, 32767, 65535, 131071, 262143, 524287, 1048575, 2097151, 4194303, 8388607, 16777215, 33554431, 67108863, 134217727, 268435455, 536870911, 1073741823, 2147483647 ]
[ "nonn", "easy" ]
A387693
[ 1, 2, 4, 8, 19, 52, 148, 416, 1141, 3078, 8248, 22096, 59319, 159560, 429624, 1157024, 3115481, 8387146, 22575900, 60765464, 163557995, 440246780, 1185025900, 3189793984, 8586134701, 23111701262, 62210729264, 167455038112, 450745122735, 1213288033040 ]
[ "nonn", "easy" ]
A316165
[ 6, 7, 2, 8, 3, 3, 2, 4, 6, 5, 5, 3, 1, 6, 6, 6, 0, 7, 9, 8, 8, 4, 6, 6, 0, 9, 4, 2, 3, 6, 6, 1, 6, 0, 6, 3, 8, 2, 1, 9, 8, 0, 1, 8, 5, 6, 5, 6, 7, 6, 2, 1, 1, 6, 0, 1, 8, 2, 6, 7, 1, 5, 5, 8...
[ "nonn", "cons" ]
A132261
[ 13, 107, 101, 491, 8039, 9349 ]
[ "more", "nonn" ]
A127331
[ 2, 5, 11, 29, 31, 61, 71, 101, 109, 199, 229, 241, 269, 331, 379, 431, 491, 631, 691, 821, 919, 941, 991, 1049, 1061, 1259, 1289, 1321, 1409, 1439, 1451, 1459, 1571, 1621, 1831, 1861, 1931, 2039, 2089, 2161, 2251, 2281, 2311, 2389...
[ "nonn", "easy" ]
A158891
[ 1, 7, 9, 15, 21, 31, 37, 39, 61, 75, 91, 115, 117, 121, 129, 141, 147, 151, 169, 171, 187, 195, 201, 217, 241, 249, 285, 301, 319, 339, 357, 399, 417, 421, 435, 457, 477, 481, 487, 499, 507, 529, 567, 577, 579, 595, 607, 6...
[ "base", "nonn" ]
A051147
[ 1, 2, 3, 5, 9, 12, 17, 29, 45, 81, 105, 177, 245, 323, 569, 893, 1277, 2121, 3221, 4853, 7697, 11015, 15333, 25841, 40157, 59213, 84239, 135107, 184679, 265277, 445029, 606509, 830411, 1394489, 1973405, 2683997, 4176989, 6710687, 9906153, ...
[ "nonn", "easy", "nice" ]
A321703
[ 1, 1, 5, 20, 81, 328, 1328, 5377, 21771, 88149, 356908, 1445091, 5851054, 23690434, 95920609, 388374617, 1572496721, 6366909240, 25779089221, 104377401344, 422615470156, 1711135105065, 6928244597163, 28051889681905, 113579782539432, 459875150943079, 18619964726688...
[ "nonn", "easy" ]
A163015
[ 6, 281, 12966, 522982, 20172122, 769984742, 29335294083, 1117382129113, 42561759311020, 1621239052172632, 61755945826247144, 2352403881643092500 ]
[ "nonn" ]
A258885
[ 1550860550, 44257207676, 66072609790 ]
[ "nonn", "bref", "hard", "more" ]
A111122
[ 15, 5, 1, 1, 1, 17, 1, 24, 173, 27, 412, 99, 516, 12, 509, 322, 173, 2562, 124, 7179, 1742, 3862, 489, 761, 663, 483, 9189, 393, 2668, 2856, 7867, 68, 2249, 2174, 1061, 3441, 16348, 6241, 33242, 3834, 33971, 103681, 11894, 2063, ...
[ "nonn" ]
A334027
[ 10, 11, 11, 12, 11, 21, 11, 13, 12, 21, 11, 1211, 11, 21, 21, 14, 11, 1112, 11, 1211, 21, 21, 11, 1311, 12, 21, 13, 1211, 11, 31, 11, 15, 21, 21, 21, 22, 11, 21, 21, 1311, 11, 31, 11, 1211, 1211, 21, 11, 1411, 12, 1112...
[ "nonn", "base" ]
A092571
[ 61, 661, 6661, 6666666661, 666666666666666600, 666666666666666600000, 6.666666666666667e+21, 6.666666666666667e+27, 6.666666666666667e+42 ]
[ "nonn" ]
A226446
[ 4, 4, 5, 4, 6, 4, 3, 3, 4, 3, 3, 6, 4, 7, 7, 7, 6, 7, 5, 6, 7, 13, 14, 13, 15, 13, 12, 12, 13, 12, 7, 13, 14, 13, 15, 13, 12, 12, 13, 12, 8, 14, 15, 14, 16, 14, 13, 13, 14, 13, 7, 13, 14, 13, 15, 13, 12, ...
[ "word", "nonn" ]
A230644
[ 2, 20, 65, 41, 1475, 15939, 60422, 68880, 1063438, 12631900, 55535695, 86719879, 743336365, 9948240141, 50564635018, 96971881440, 496655601122, 7778740572980, 45669244934945, 101577438080201, 308633722311395, 6032082927439779, 40960925870541544 ]
[ "nonn" ]
A330715
[ 1, 1, 1, 2, 2, 3, 4, 4, 6, 7, 10, 12, 16, 19, 24, 28, 34, 39, 46, 52, 60, 67, 76, 84, 94, 103, 114, 124, 136, 147, 160, 172, 186, 199, 214, 228, 244, 259, 276, 292, 310, 327, 346, 364, 384, 403, 424, 444, 466, 487, 5...
[ "nonn", "hear" ]
A313042
[ 1, 4, 9, 14, 18, 23, 26, 33, 37, 42, 46, 49, 57, 61, 65, 70, 72, 79, 85, 87, 94, 94, 103, 109, 110, 118, 117, 127, 131, 133, 141, 140, 150, 155, 156, 165, 163, 174, 179, 177, 189, 185, 198, 202, 200, 213, 208, 222, 226, ...
[ "nonn" ]
A335347
[ 19, 22, 38, 58, 58, 62, 82, 79, 118, 121, 139, 122, 142, 178, 191, 229, 179, 269, 218, 202, 241, 251, 262, 341, 311, 298, 319, 398, 398, 302, 389, 319, 421, 362, 458, 401, 418, 418, 509, 538, 569, 491, 422, 479, 631, 478, 67...
[ "nonn" ]
A176475
[ 0, 1, 2, 8, 24, 136, 960, 5312, 40320, 491776, 4112640, 40270592, 638668800, 6249389056, 91883151360, 1919826163712, 20922789888000, 355897293438976, 8676514912665600, 121674189293944830, 2757288942600192000 ]
[ "nonn" ]
A210380
[ 1, 2, 4, 6, 9, 10, 11, 15, 18, 20, 21, 24, 26, 28, 32, 34, 36, 38, 40, 42, 50, 52, 54, 56, 58, 60, 62, 64, 72, 74, 76, 78, 80, 82, 84, 86, 88, 99, 101, 103, 105, 107, 109, 111, 114, 116, 118, 129, 130, 133, 135, 13...
[ "nonn", "nice" ]
A247316
[ 1, 21, 27, 34, 54, 63, 81, 171, 205, 212, 214, 237, 243, 272, 291, 315, 324, 333, 342, 351, 356, 358, 394, 402, 405, 424, 432, 441, 459, 493, 502, 504, 513, 538, 540, 544, 565, 585, 624, 630, 663, 702, 712, 714, 716, 718, 72...
[ "nonn", "base", "easy" ]
A046063
[ 2, 3, 4, 5, 6, 13, 36, 77, 132, 157, 168, 186, 188, 212, 216, 302, 366, 417, 440, 491, 498, 525, 546, 658, 735, 753, 825, 841, 863, 1085, 1086, 1296, 1477, 1578, 1586, 1621, 1793, 2051, 2136, 2493, 2502, 2508, 2568, 2633, 2727, ...
[ "nonn", "nice" ]
A112785
[ 79997, 79999, 777977, 777979, 7977797, 7977799, 77997779, 77997977, 77997979, 99777779, 799999799, 977797979, 977999777, 977999779, 979797779, 999799979, 7777997999, 7797799979, 7979997797, 7979997799, 7999777997, 7999777999, 7999797977, 7999797979 ]
[ "base", "nonn" ]
A141757
[ 50, 98, 150, 242, 250, 294, 338, 350, 490, 550, 578, 650, 686, 722, 726, 750, 850, 950, 1014, 1050, 1058, 1078, 1150, 1210, 1274, 1450, 1470, 1550, 1650, 1666, 1682, 1690, 1694, 1734, 1750, 1850, 1862, 1922, 1950, 2050, 2058, 2150, ...
[ "nonn" ]
A267505
[ 2, 3, 7, 43, 79, 547, 3319, 6163, 36979, 42667, 258847, 1553119, 1573207, 1834639, 1854763, 11131927, 20224159, 20451679, 124027567, 141569107, 141588763, 467477683, 1840398379, 3278780359, 5276533183, 6089163523, 6155955079, 11168428363, 11185512199, 316556...
[ "nonn" ]
A238366
[ 1, 2, 7, 12, 37, 62, 187, 312, 937, 1562, 4687, 7812, 23437, 39062, 117187, 195312, 585937, 976562, 2929687, 4882812, 14648437, 24414062, 73242187, 122070312, 366210937, 610351562, 1831054687, 3051757812, 9155273437, 15258789062, 45776367187, 76293945312...
[ "easy", "nonn" ]
A305583
[ 16, 8, 19, 38, 76, 327, 967, 2641, 8578, 26437, 78868, 243583, 747553, 2276209, 6972325, 21347977, 65257777, 199664890, 610944133, 1868823559, 5717250070, 17491334971, 53510023900, 163701580426, 500812768156, 1532124309511 ]
[ "nonn" ]
A085881
[ 1, 1, 1, 3, 6, 3, 15, 45, 45, 15, 105, 420, 630, 420, 105, 945, 4725, 9450, 9450, 4725, 945, 10395, 62370, 155925, 207900, 155925, 62370, 10395, 135135, 945945, 2837835, 4729725, 4729725, 2837835, 945945, 135135, 2027025, 16216200, 56756700...
[ "nonn", "tabl" ]
A324870
[ 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, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0...
[ "nonn" ]
A258535
[ 1302500, 5390288, 11711440, 49299000, 159909048, 592438330, 2229175182, 7742054643, 25814320832, 91341056498, 319886182796, 1040366097283, 3692207243282, 13054765725797, 39905793352168, 145629634326028 ]
[ "nonn" ]
A298729
[ 137777777, 177777773, 177777779, 197777777, 307777777, 347777777, 437777777, 527777777, 547777777, 577777777, 587777777, 647777777, 697777777, 777777701, 777777739, 777777743, 777777751, 777777799, 787777777, 827777777, 947777777, 967777777, 1247777777, 1277777771, 12...
[ "base", "nonn", "less" ]
A074894
[ 3, 6, 27, 486 ]
[ "nonn", "fini", "full" ]
A014040
[ 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, 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, 1, ...
[ "sign" ]
A165690
[ 1, 40, 1560, 60840, 2372760, 92537640, 3608967960, 140749750440, 5489240267160, 214080370418460, 8349134446289520, 325616243404105660, 12699033492713884000, 495262306214038140000, 1.9315229942277158e+22 ]
[ "nonn" ]
A259952
[ 34, 60, 60, 156, 170, 156, 365, 549, 549, 365, 801, 1507, 2438, 1507, 801, 1825, 4128, 8699, 8699, 4128, 1825, 4272, 11933, 30351, 35765, 30351, 11933, 4272, 9840, 34337, 115410, 141619, 141619, 115410, 34337, 9840, 22444, 97374, 438353, ...
[ "nonn", "tabl" ]
A093023
[ 8, 13, 27, 32, 46, 51, 65, 70, 89, 94, 107, 112, 126, 131, 145, 150, 169, 174, 188, 193, 206, 211, 225, 230, 249, 254, 268, 273, 287, 292, 305, 310, 329, 334, 348, 353, 367, 372, 386, 391, 409, 414, 428, 433, 447, 452, 466, ...
[ "easy", "nonn", "base" ]
A360315
[ 1, 0, 0, 0, -2, -2, -2, -2, 4, 10, 16, 22, 8, -26, -80, -154, -178, -82, 204, 750, 1374, 1642, 868, -1886, -6886, -12802, -15784, -8538, 17166, 64554, 122476, 152602, 86056, -157642, -616456, -1183666, -1493402, -878250, 1468080 ]
[ "sign" ]
A085018
[ 1, 4, 13, 24, 33, 37, 52, 61, 69, 73, 88, 97, 109, 121, 132, 141, 157, 177, 181, 184, 193, 213, 229, 241, 244, 249, 253, 277, 292, 312, 313, 321, 337, 349, 373, 376, 388, 393, 397, 409, 421, 429, 433, 457, 472, 481, 501, 5...
[ "nonn" ]
A319652
[ 0, 1, 2, 3, 1, 5, 6, 7, 2, 6, 10, 11, 3, 7, 11, 15, 1, 5, 6, 7, 5, 21, 22, 23, 6, 22, 26, 27, 7, 23, 27, 31, 2, 6, 10, 11, 6, 22, 26, 27, 10, 26, 42, 43, 11, 27, 43, 47, 3, 7, 11, 15, 7, 23, 27, 31, 11, ...
[ "nonn", "base" ]
A142295
[ 7, 139, 227, 271, 359, 491, 887, 1019, 1063, 1151, 1283, 1327, 1459, 1723, 1811, 1987, 2207, 2251, 2339, 2383, 2647, 2999, 3307, 3527, 3571, 3659, 3923, 3967, 4099, 4231, 4363, 4451, 4583, 4759, 5023, 5419, 5507, 5639, 5683, 5903, 6079,...
[ "nonn", "easy" ]
A356202
[ 0, 2, 8, 606, 24881, 903855, 18345919, 303176603, 7423167971, 247828120179, 6034957650107, 7948827377158 ]
[ "nonn", "hard", "more" ]
A372420
[ 1, 5, 18, 62, 214, 750, 2676, 9708, 35718, 132926, 499228, 1888644, 7186876, 27478508, 105474216, 406182552, 1568563014, 6071812638, 23552366796, 91525132692, 356242058004, 1388588519268, 5419533876696, 21176597444712, 82834229300124, 324326668721100 ]
[ "nonn" ]
A180726
[ 0, 1, 5, 2, 9, 6, 46, 3, 53, 10, 50, 7, 17, 47, 77, 4, 34, 54, 84, 1, 31, 51, 61, 81, 8, 18, 38, 48, 68, 78, 98, 5, 25, 35, 45, 55, 75, 85, 95, 2, 22, 32, 42, 145, 52, 62, 72, 82, 92, 102, 9, 19, 29, 39, 142,...
[ "base", "nonn" ]
A225125
[ 1, 6, 9, 2, 9, 9, 2, 4, 6, 8, 4, 1, 3, 6, 0, 1, 2, 4, 4, 6, 7, 8, 0, 1, 3, 8, 3, 4, 8, 9, 8, 1, 0, 8, 7, 0, 8, 0, 7, 8, 6, 9, 8, 6, 7, 1, 5, 6, 8, 0, 7, 2, 3, 4, 9, 5, 6, 8, 8, 0, 1, 5, 7, 7...
[ "nonn", "cons", "easy" ]
A205954
[ 256, 2120, 2120, 17920, 25512, 17920, 151824, 310912, 310912, 151824, 1285076, 3825072, 5550256, 3825072, 1285076, 10876432, 47118720, 101702648, 101702648, 47118720, 10876432, 92062852, 583496376, 1912957100, 2938041784, 1912957100 ]
[ "nonn", "tabl" ]
A032687
[ 0, 9, 12, 13, 15, 16, 18, 21, 22, 24, 31, 36, 40, 43, 45, 60, 61, 63, 66, 75, 76, 79, 84, 87, 94, 100, 103, 109, 114, 126, 129, 130, 136, 138, 145, 157, 163, 171, 172, 177, 186, 189, 190, 195, 201, 205, 213, 217, 222, ...
[ "nonn", "base" ]
A357905
[ 0, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 1, 1, 2, 0...
[ "nonn", "easy" ]
A025422
[ 1, 1, 1, 1, 2, 2, 2, 2, 2, 3, 3, 2, 3, 4, 3, 3, 4, 4, 5, 4, 5, 6, 6, 4, 5, 7, 6, 6, 7, 8, 8, 7, 6, 8, 9, 7, 10, 11, 10, 9, 10, 10, 11, 10, 10, 15, 12, 10, 11, 13, 14, 12, 15, 16, 18, 15, 13, 16, 17, ...
[ "nonn" ]
A119397
[ 71820, 103950, 127764, 135660, 141360, 161460, 173250, 183744, 193284, 203580, 206712, 209440, 214830, 217620, 221760, 223020, 223860, 234432, 243540, 244440, 246330, 247752, 256680, 263160, 264180, 265200, 280368, 281160, 286380, 287712 ]
[ "base", "nonn" ]
A245896
[ 1, 2, 14, 165, 2639 ]
[ "nonn", "more" ]
A297574
[ 2, 6, 15, 6, 65, 8, 16, 12, 63, 30, 31, 16, 85, 26, 39, 20, 65, 72, 73, 24, 57, 32, 56, 32, 1025, 170, 513, 40, 85, 42, 91, 40, 93, 130, 155, 144, 73, 56, 111, 48, 341, 48, 127, 64, 585, 112, 2048, 60, 2107, 550, 195...
[ "nonn" ]
A248584
[ 3, 1, 8, 2, 4, 8, 1, 6, 5, 0, 8, 3, 6, 9, 0, 1, 2, 4, 7, 7, 7, 6, 8, 5, 5, 8, 9, 9, 9, 6, 7, 8, 7, 8, 4, 4, 7, 8, 8, 6, 5, 7, 1, 2, 2, 3, 3, 1, 5, 3, 3, 0, 4, 9, 4, 6, 7, 0, 9, 4, 7, 9, 6, 9...
[ "nonn", "cons" ]
A274843
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 23, 46, 89, 168, 311, 566, 1013, 1780, 3059, 5106, 13283, 31683, 71545, 155833, 331139, 691387, 1424525, 2902605, 5848135, 11610871, 34108236, 95170569, 254432006, ...
[ "nonn" ]
A214841
[ 0, 0, 1, 0, 1, 1, 2, 1, 2, 2, 1, 1, 1, 2, 1, 1, 1, 2, 2, 3, 3, 4, 1, 3, 2, 4, 2, 4, 2, 5, 3, 5, 4, 6, 2, 5, 2, 6, 3, 5, 2, 6, 3, 7, 4, 6, 1, 6, 3, 6, 4, 6, 1, 5, 3, 6, 6, 6, 2, 7, 2, 6, 5, 6...
[ "nonn" ]
A170664
[ 1, 31, 930, 27900, 837000, 25110000, 753300000, 22599000000, 677970000000, 20339100000000, 610173000000000, 18305190000000000, 549155700000000000, 16474671000000000000, 494240130000000000000, 1.48272039e+22 ]
[ "nonn" ]
A296055
[ 290, 550, 850, 1060, 2650, 3035, 3245, 5015, 5105, 8935, 10615, 11890, 12925, 13485, 13905, 14850, 15215, 15985, 17560, 17600, 18105, 19925, 20135, 21780, 23510, 24040, 25490, 28830, 31145, 34365, 36355, 38140, 38370, 42025, 43845, 46820, 47575...
[ "dead" ]
A097786
[ 1, 7, 31, 113, 374, 1178, 3618, 10974, 33087, 99481, 298729, 896551, 2690108, 8070884, 24213332, 72640812, 217923405, 653771355, 1961315395, 5883947725, 17651844946, 52955536862, 158866612886, 476599841258, 1429799526699 ]
[ "easy", "nonn" ]
A278970
[ 4, 2, 3, 2, 2, 1, 2, 0, 2, 1, 1, 3, 1, 1, 2, 2, 2, 1, 1, 2, 3, 2, 1, 2, 2, 3, 3, 1, 2, 3, 1, 1, 2, 2, 3, 4, 3, 2, 2, 3, 3, 3, 2, 3, 4, 2, 4, 3, 2, 4, 3, 2, 3, 3, 3, 3, 4, 3, 3, 5, 4, 4, 4 ]
[ "nonn", "hard", "more" ]
A361009
[ 5, 8, 14, 17, 20, 26, 29, 32, 35, 38, 41, 44, 47, 50, 53, 56, 62, 65, 68, 71, 72, 74, 77, 80, 86, 89, 92, 95, 98, 101, 104, 107, 110, 113, 116, 119, 122, 125, 128, 131, 134, 137, 140, 146, 149, 152, 155, 158, 161, 164,...
[ "nonn" ]
A265500
[ 1, 2, 7, 21, 52, 167, 501, 1503, 4509, 13527, 40581 ]
[ "nonn", "more" ]
A045678
[ 0, 0, 0, 2, 4, 12, 26, 56, 116, 240, 492, 992, 2010, 4032, 8120, 16256, 32628, 65280, 130800, 261632, 523756, 1047552, 2096096, 4192256, 8386522, 16773120, 33550272, 67100672, 134209464, 268419072, 536854400, 1073709056, 2147450740 ]
[ "nonn" ]
A011974
[ 2, 5, 8, 12, 18, 24, 30, 36, 42, 52, 60, 68, 78, 84, 90, 100, 112, 120, 128, 138, 144, 152, 162, 172, 186, 198, 204, 210, 216, 222, 240, 258, 268, 276, 288, 300, 308, 320, 330, 340, 352, 360, 372, 384, 390, 396, 410, 434, ...
[ "nonn", "easy" ]
A231897
[ 0, 1, 3, 5, 13, 11, 21, 39, 45, 75, 155, 217, 331, 181, 627, 923, 1241, 2505, 3915, 5221, 6475, 11309, 15595, 19637, 31595, 44491, 69451, 113447, 185269, 244661, 357081, 453677, 1015143, 908091, 980853, 2960011, 4568757, 2965685, 5931189, ...
[ "nonn", "base" ]
A369845
[ 1, 1, 1, 2, 7, 22, 58, 138, 319, 750, 1810, 4427, 10828, 26349, 63862, 154603, 374521, 908140, 2203162, 5344988, 12964858, 31443013, 76253683, 184929945, 448506736, 1087774536, 2638209313, 6398479259, 15518219326, 37636240539, 91279009255, 221378866489 ]
[ "nonn", "easy" ]
A022830
[ 1, 0, 1, 0, 1, 1, 2, 0, 2, 2, 3, 2, 3, 3, 6, 2, 3, 5, 6, 5, 8, 8, 9, 5, 7, 7, 11, 10, 11, 15, 16, 8, 11, 11, 14, 16, 17, 17, 20, 16, 17, 21, 22, 21, 29, 29, 30, 18, 20, 22, 25, 24, 25, 33, 36, 32, 35, 3...
[ "nonn" ]
A015714
[ 1, -1, 0, 0, 0, 1, -1, 0, 0, 0, 1, 0, -1, 0, 0, 1, 0, -1, 0, 0, 1, 0, 0, -1, 0, 1, 0, 0, -1, 0, 1, 1, -1, 0, -1, 1, 1, -1, 0, -1, 1, 1, 0, -1, 0, 0, 1, 0, -1, 0, 0, 1, 0, 0, -1, 0, 1, 0, 0, -1, 0,...
[ "sign" ]
A314310
[ 1, 5, 7, 12, 16, 23, 24, 28, 34, 36, 43, 42, 53, 54, 56, 61, 68, 71, 73, 77, 85, 87, 90, 92, 105, 101, 107, 108, 121, 120, 121, 127, 136, 136, 139, 141, 156, 151, 155, 157, 174, 167, 172, 174, 188, 186, 186, 192, 207, ...
[ "nonn" ]
A096819
[ 5, 7, 11, 15, 19, 21, 31, 39, 67, 69, 85, 157, 171, 191, 255, 291, 379, 3669, 4551, 9531, 13119, 14211, 20647, 233965, 337267, 534429, 535415, 816039, 991715 ]
[ "nonn", "more" ]
A219267
[ 1, 7, 313, 110143, 431860201, 24185951471887, 23238336572015740000, 4.455714769755844e+26, 1.9420147050520866e+35, 2.1577941220784062e+45, 6.77208230450612e+56 ]
[ "nonn" ]
A115910
[ 1, 3, 15, 84, 217, 255, 1710, 2967, 5363, 11242, 24066, 27370, 29697, 29953, 60977, 65535, 69324, 103257, 159761, 209305, 228333, 446516, 598559, 615410, 691410, 1231305, 1238358, 1365175, 1467732, 1841154, 1966220, 2081070, 2562370 ]
[ "nonn" ]
A106243
[ 1, 0, 1, 1, 1, 0, 0, 2, 3, 3, 13, 13, 11, 6, 0, 0, 26, 50, 67, 73, 73, 505, 505, 479, 403, 286, 146, 0, 0, 1010, 1994, 2876, 3565, 3997, 4143, 4143, 39313, 39313, 38303, 35299, 30429, 23988, 16426, 8286, 0, 0, 78626, 15624...
[ "nonn", "tabl", "easy" ]
A105624
[ 1, 3, 19, 167, 1831, 23843, 358339, 6097607, 115840951, 2430329603, 55812650419, 1392737182247, 37528377195271, 1086086115808163, 33600297897404900, 1106632150406054100, 38659524289511285000, 1.4278642161630411e+21 ]
[ "nonn" ]
A360520
[ 2, 3, 11, 15, 43, 57, 137, 177, 389, 495, 1003, 1257, 2421, 3003, 5515, 6771, 12011, 14631, 25143, 30399, 50931, 61197, 100161, 119643, 192051, 228255, 359839, 425631, 660623, 778119, 1190359, 1396479, 2109119, 2465439, 3679263, 4286175, 632787...
[ "nonn" ]
A000079
[ 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384, 32768, 65536, 131072, 262144, 524288, 1048576, 2097152, 4194304, 8388608, 16777216, 33554432, 67108864, 134217728, 268435456, 536870912, 1073741824, 2147483648, 4294967296, 8589934...
[ "nonn", "core", "easy", "nice", "changed" ]
A231481
[ 2, 3, 5, 13, 17, 29, 59, 67, 71, 73, 97, 127, 191, 199, 223, 227, 239, 307, 337, 349, 353, 367, 409, 421, 433, 449, 461, 479, 487, 491, 563, 571, 577, 619, 647, 683, 739, 743, 811, 823, 829, 857, 881, 911, 937, 941, 991, 1...
[ "nonn", "base" ]
A009885
[ 1, 4, 9, 19, 39, 59, 78, 117, 155, 189, 235, 288, 330, 407, 463, 524, 588, 695, 768, 839, 946, 1036, 1131, 1260, 1347, 1490, 1568, 1718, 1881, 1982, 2095, 2242, 2434, 2581, 2675, 2947, 2992, 3266, 3454, 3540, 3800, 3929, 4117, 443...
[ "nonn" ]