id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A057299
[ 1, 2, 3, 9, 27, 57, 62, 81, 243, 459, 621, 729, 1083, 1922, 2187, 6561, 10287, 14337, 18411, 19683, 20577, 24909, 37179, 59049, 59582, 121743, 144026, 150903, 177147, 187353, 390963, 531441, 845883, 944599 ]
[ "nonn" ]
A052895
[ 1, 1, 5, 43, 545, 9211, 195305, 4990483, 149371745, 5128125451, 198696086105, 8578228640323, 408387804764945, 21256203702751292, 1200890923560865000, 73191086773679580000, 4.786857909878612e+21, 3.344101037520291e+23 ]
[ "easy", "nonn" ]
A010163
[ 9, 1, 1, 2, 4, 2, 1, 1, 18, 1, 1, 2, 4, 2, 1, 1, 18, 1, 1, 2, 4, 2, 1, 1, 18, 1, 1, 2, 4, 2, 1, 1, 18, 1, 1, 2, 4, 2, 1, 1, 18, 1, 1, 2, 4, 2, 1, 1, 18, 1, 1, 2, 4, 2, 1, 1, 18, 1, 1, 2, 4, 2, ...
[ "nonn", "cofr" ]
A258115
[ 2, 3, 2, 3, 2, 2, 2, 3, 2, 3, 2, 5, 2, 3, 2, 3, 2, 2, 2, 3, 2, 3, 2, 5, 2, 3, 2, 3, 2, 2, 2, 3, 2, 3, 2, 5, 2, 3, 2, 3, 2, 2, 2, 3, 2, 3, 2, 5, 2, 3, 2, 3, 2, 2, 2, 3, 2, 3, 2, 7, 2, 3, 2, 3...
[ "nonn" ]
A068999
[ 4, 9, 25, 49, 121, 169, 289, 300, 361, 504, 529, 841, 961, 980, 1056, 1369, 1404, 1575, 1681, 1849, 2209, 2600, 2736, 2809, 3481, 3721, 4489, 4851, 5041, 5329, 6241, 6375, 6696, 6889, 7436, 7448, 7695, 7921, 9409, 9639, 10201, 10304, ...
[ "nonn" ]
A087658
[ 1, 17, 41, 59, 89, 113, 459, 51015, 51051, 51255, 54147, 54519, 54573, 54693, 57465, 57519, 58011, 60933 ]
[ "nonn" ]
A292890
[ 3, 7, 31, 67, 127, 271, 577, 1087, 2311, 8191, 78607, 131071, 524287, 1114111, 2367487, 2672671, 17825791, 42762751, 90870847, 606076927, 2147483647, 5151653887, 5815734271, 9697230847, 329705848831, 474351505987, 700624928767, 892896952447, 1168231104511, 2...
[ "nonn" ]
A152070
[ 6300100, 7502121, 16654561, 57942544, 74753316, 696379321, 1185424900, 2176315801, 16960113361, 21735899761, 44504965444, 52141439025, 95610824100, 105593152401, 189565322881, 213454164121, 293481144121, 527475375625 ]
[ "nonn", "base" ]
A136803
[ 0, 1, 2, 4, 8, 9, 11, 13, 15, 16, 17, 18, 21, 22, 23, 25, 26, 29, 30, 31, 32, 34, 35, 36, 42, 44, 46, 49, 50, 52, 57, 58, 59, 60, 61, 62, 64, 67, 68, 70, 72, 73, 79, 81, 84, 88, 89, 92, 95, 98, 99, 100, 104, 11...
[ "fini", "full", "easy", "nonn" ]
A126393
[ 1, 6, 24, 100, 418, 1748, 7310, 30570, 127842, 534628, 2235784, 9349922, 39100844, 163517514, 683820978, 2859700582, 11959105792, 50012302772, 209148616298, 874647662172, 3657726962214, 15296406894730, 63968706878962 ]
[ "nonn", "base" ]
A144101
[ 0, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 0, 0, 1, 1, 0, 0, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1...
[ "easy", "nonn" ]
A117470
[ 1, 2, 2, 1, 3, 1, 2, 3, 4, 2, 1, 2, 5, 1, 4, 4, 2, 3, 6, 4, 4, 6, 4, 1, 2, 9, 6, 1, 6, 6, 9, 2, 2, 11, 10, 3, 4, 10, 11, 6, 4, 11, 17, 6, 1, 5, 11, 17, 10, 1, 2, 15, 21, 12, 2, 6, 12, 24, 18, 3, 2...
[ "nonn", "tabf" ]
A365556
[ 1, 4, 44, 764, 18204, 551644, 20291804, 877970524, 43680345564, 2456429581404, 154072160204764, 10663000409493084, 807124301044917800, 66329628496719180000, 5.881222650127664e+21, 5.5961668259765294e+23, 5.687928640709201e+25 ]
[ "nonn" ]
A185366
[ 1, 81, 676, 8281, 72900, 819025, 21609, 3644281, 59845696, 796707076, 2113884529, 736205184576, 1751509314916, 1751509314916, 5176216516900, 4737309139140769, 99398242392417420, 887828157705424900, 8576326547254682000, 2583667059970281500 ]
[ "nonn", "base" ]
A182551
[ 8, 1, 6, 9, 6, 0, 7, 5, 9, 4, 1, 9, 8, 9, 3, 0, 9, 8, 1, 3, 7, 6, 5, 5, 1, 4, 1, 0, 3, 0, 2, 7, 6, 9, 7, 6, 4, 4, 2, 1, 1, 1, 2, 0, 8, 7, 9, 2, 6, 3, 2, 3, 7, 0, 0, 8, 4, 2, 4, 7, 1, 0, 3, 8...
[ "nonn", "cons" ]
A210953
[ 1, 0, 3, 0, 0, 5, 0, 0, 2, 9, 0, 0, 0, 3, 12, 0, 0, 0, 2, 9, 20, 0, 0, 0, 0, 3, 11, 25, 0, 0, 0, 0, 2, 9, 22, 38, 0, 0, 0, 0, 0, 3, 14, 28, 49, 0, 0, 0, 0, 0, 2, 9, 26, 44, 69, 0, 0, 0, 0, 0, 0, ...
[ "nonn", "tabl" ]
A285077
[ 2, 3, 5, 7, 8, 10, 12, 13, 15, 17, 19, 20, 22, 24, 25, 27, 29, 31, 32, 34, 36, 37, 39, 41, 42, 44, 46, 48, 49, 51, 53, 54, 56, 58, 60, 61, 63, 65, 66, 68, 70, 71, 73, 75, 77, 78, 80, 82, 83, 85, 87, 89, 90, 92,...
[ "nonn", "easy" ]
A238101
[ 20, 69, 367, 1494, 2642, 12967 ]
[ "nonn", "more" ]
A124511
[ 1, 36, 36, 72, 36, 144, 36, 144, 72, 144, 36, 288, 36, 144, 144, 288, 36, 288, 36, 288, 144, 144, 36, 576, 72, 144, 144, 288, 36, 576, 36, 576, 144, 144, 144, 576, 36, 144, 144, 576, 36, 576, 36, 288, 288, 144, 36, 1152, ...
[ "nonn", "easy" ]
A220382
[ 7, 79, 757, 7462, 73066, 715412, 7003040, 68557435, 671141189, 6570141318, 64318370539, 629644495493, 6163902725507, 60341505579868, 590712971700130, 5782782703158232, 56610532354660690, 554188621256117950 ]
[ "nonn" ]
A172512
[ 2, 5, 10, 17, 28, 47, 76, 123, 196, 275, 388, 539, 696, 859, 1026, 1265, 1506, 1789, 2142, 2509, 2888, 3345, 4342, 5709, 8750, 18891, 33590, 61119, 110326, 187617, 272854, 379547, 539970, 743759, 1108048, 2100009, 3303802, 4971123, 8675176,...
[ "nonn" ]
A085237
[ 1, 2, 2, 4, 4, 4, 6, 6, 6, 6, 6, 6, 6, 8, 14, 14, 14, 18, 20, 22, 34, 34, 36, 36, 36, 44, 52, 52, 72, 86, 86, 96, 112, 114, 118, 132, 132, 148, 154, 154, 154, 180, 210, 220, 222, 234, 248, 250, 250, 282, 288, 292, ...
[ "nonn" ]
A141426
[ 1, 2, 18, 28, 42, 58, 70, 78, 88, 108, 112, 126, 136, 138, 148, 162, 178, 180, 196, 198, 210, 228, 238, 240, 268, 280, 282, 292, 312, 316, 336, 348, 358, 378, 388, 396, 400, 408, 418, 420, 430, 438, 448, 462, 466, 478, 486, ...
[ "nonn", "less" ]
A091687
[ 1, 2, 7, 60, 3444, 11402948, 129187106461769 ]
[ "nonn", "hard", "more" ]
A254328
[ 1, 2, 3, 4, 5, 8, 12, 16 ]
[ "nonn", "fini", "full" ]
A132388
[ 61, 691, 163, 487, 4201, 9631, 4441, 1861, 4483, 5227, 1297, 5209, 9049, 63211, 16141, 69481, 12391, 94273, 61483, 65707, 14437, 67057, 92767, 16987, 96979, 65899, 526501, 485701, 165901, 655111, 522211, 906421, 520621, 123031, 440131, 921931, ...
[ "nonn", "base", "easy" ]
A001621
[ 0, 2, 12, 42, 110, 240, 462, 812, 1332, 2070, 3080, 4422, 6162, 8372, 11130, 14520, 18632, 23562, 29412, 36290, 44310, 53592, 64262, 76452, 90300, 105950, 123552, 143262, 165242, 189660, 216690, 246512, 279312, 315282, 354620, 397530, 444222, ...
[ "nonn", "easy" ]
A326878
[ 1, 2, 7, 45, 500, 9053, 257151, 11161244, 725343385, 69407094565, 9639771895398, 1919182252611715, 541764452276876740, 214777343584048320000, 1.1857532329181438e+23, 9.049259125863459e+25, 9.484488513066086e+28, 1.3573808627152658e+32, 2.6392138351004104e+35 ]
[ "nonn" ]
A287627
[ 1, 10, 10, 1100, 11100, 1000, 11000, 11110000, 11110000, 111100000, 1111100000, 10001000000, 100011000000, 1111010000000, 11001110000000, 110100100000000, 1111001100000000, 11111101000000000, 111001011000000000, 1111011010000000000, 11101101110000000000 ]
[ "nonn", "easy" ]
A368971
[ 1, 3, 12, 52, 228, 969, 3795, 12285, 19227, -162316, -2334219, -20233746, -146642814, -956899038, -5761740810, -32172133140, -164988072288, -752632536117, -2777949390584, -5070274066512, 41416739288496, 663038498204040, 6188361199762260, 47738255512890550 ]
[ "sign" ]
A240689
[ 2, 2, 2, 3, 1, 3, 2, 4, 2, 1, 3, 2, 1, 3, 1, 0, 2, 3, 2, 1, 2, 1, 1, 0, 2, 2, 3, 0, 3, 0, 2, 1, 1, 1, 2, 1, 2, 1, 0, 1, 0, 1, 1, 2, 2, 3, 2, 2, 1, 2, 2, 2, 2, 0, 1, 1, 2, 3, 1, 1, 2, 1, 1, 1...
[ "nonn", "base" ]
A220948
[ 1, 4, 15, 55, 200, 726, 2638, 9604, 35037, 128061, 468809, 1718446, 6305546, 23155863, 85089015, 312823200, 1150506841, 4232595095, 15574796945, 57320990295, 210990647105, 776707569176, 2859475304889, 10527898398268, 38763003252400, 142727886900676, 52554791297410...
[ "nonn", "easy" ]
A305679
[ 1, 4, 25, 1595, 383910, 351440611, 1172824606532, 14227138873003016, 624906012671792400000 ]
[ "nonn" ]
A062069
[ 1, 3, 3, 4, 3, 7, 3, 7, 4, 7, 3, 12, 3, 7, 7, 6, 3, 12, 3, 12, 7, 7, 3, 15, 4, 7, 7, 12, 3, 15, 3, 12, 7, 7, 7, 13, 3, 7, 7, 15, 3, 15, 3, 12, 12, 7, 3, 18, 4, 12, 7, 12, 3, 15, 7, 15, 7, 7, 3, 28, ...
[ "nonn" ]
A202716
[ 838, 173860, 7788648, 147823100, 1631287078, 12388736288, 71598143176, 335967493328, 1337851154982, 4665608624084, 14584276374720 ]
[ "nonn" ]
A270779
[ 3, 5, 7, 17, 67, 257, 65537, 8942223643 ]
[ "nonn", "more" ]
A194482
[ 0, 0, 6, 234, 2817, 19362, 94584, 365904, 1193283, 3413619, 8800704, 20845968, 46017972, 95710797, 189154056, 357631176, 650438802, 1143119610, 1948614426, 3232108278, 5230489803, 8277505236, 12835867968, 19537783320, 29235566685 ]
[ "nonn" ]
A093224
[ 0, 7248, 936000, 95520888088, 99552008880088, 99955200088800100, 99995520000888000000 ]
[ "base", "nonn" ]
A170487
[ 1, 46, 2070, 93150, 4191750, 188628750, 8488293750, 381973218750, 17188794843750, 773495767968750, 34807309558593750, 1566328930136718800, 70484801856152350000, 3.1718160835268554e+21, 1.4273172375870849e+23 ]
[ "nonn" ]
A374590
[ 8, 24, 27, 32, 40, 54, 56, 64, 72, 88, 96, 104, 108, 120, 125, 135, 136, 152, 160, 168, 184, 189, 192, 200, 216, 224, 232, 243, 248, 250, 264, 270, 280, 288, 296, 297, 312, 320, 328, 343, 344, 351, 352, 360, 375, 376, 378, ...
[ "nonn", "easy", "base" ]
A120834
[ 1, 5, 10, 70, 630, 2520, 2520, 32760, 32760, 32760, 32760, 622440, 622440, 622440, 1244880, 6224400, 6224400, 6224400, 1556100, 17117100, 530630100, 530630100, 176876700, 176876700, 176876700 ]
[ "nonn", "frac" ]
A205796
[ 1, 9, 33, 69, 427, 1009, 2667 ]
[ "nonn" ]
A328963
[ 1, 2, 36, 72, 144, 180, 576, 420, 360, 864, 1296, 720, 36864, 1080, 1440, 1260, 5184, 1800, 2160, 3360, 5760, 15552, 4620, 2520, 150994944, 6480, 5400, 13440, 8640, 6300, 9663676416, 5040, 12960, 9240, 331776, 7560, 186624, 248832, 34560, ...
[ "nonn" ]
A238039
[ 81, 340, 1440, 6064, 25948, 109200, 466296, 1962720, 8385248, 35292928, 150759392, 634547840, 2710688576, 11409244416, 48737830912, 205137173504, 876305679104, 3688361604096, 15755932345856, 66316572940288, 283291082594304 ]
[ "nonn" ]
A275467
[ 11, 13, 17, 19, 31, 23, 37, 29, 41, 43, 47, 59, 61, 53, 67, 79, 71, 73, 97, 89, 101, 83, 107, 109, 131, 103, 127, 139, 151, 113, 137, 149, 181, 163, 157, 179, 191, 173, 167, 199, 211, 193, 197, 229, 241, 223, 227, 239, 2...
[ "nonn", "base", "tabf" ]
A295070
[ 1, 2, 8, 11, 19, 24, 35, 43, 57, 68, 84, 97, 115, 130, 150, 168, 191, 211, 236, 259, 287, 312, 342, 369, 401, 430, 464, 495, 531, 565, 604, 640, 681, 719, 762, 802, 848, 891, 939, 984, 1034, 1081, 1133, 1182, 1236, 1287, 134...
[ "nonn", "easy" ]
A103225
[ 1, 4, 24, 24, 44, 48, 144, 96, 224, 96, 372, 192, 444, 304, 404, 392, 792, 448, 1124, 408, 1200, 752, 1648, 808, 1240, 896, 2036, 1200, 2440, 800, 2996, 1600, 3008, 1592, 2404, 1808, 4056, 2256, 3616, 1600, 4992, 2400, 5784, 3008,...
[ "nice", "nonn" ]
A328079
[ 1, 1, 2, 4, 6, 12, 21, 43, 78, 156, 293, 583, 1118, 2208, 4277, 8423, 16422, 32280, 63117, 123951, 242782, 476560, 934181, 1833255, 3595254, 7054600, 13837949, 27151135, 53264270, 104505920, 205027797, 402264599, 789215654 ]
[ "nonn", "more" ]
A161443
[ 3, 18, 33, 48, 71, 86, 101, 116, 139, 154, 169, 184, 207, 222, 237, 252, 258, 275, 288, 305, 326, 343, 356, 373, 394, 411, 424, 441, 462, 479, 492, 509, 513, 528, 547, 562, 581, 596, 615, 630, 649, 664, 683, 698, 717, 732, 7...
[ "nonn", "easy" ]
A134972
[ 1, 2, 3, 6, 0, 6, 7, 9, 7, 7, 4, 9, 9, 7, 8, 9, 6, 9, 6, 4, 0, 9, 1, 7, 3, 6, 6, 8, 7, 3, 1, 2, 7, 6, 2, 3, 5, 4, 4, 0, 6, 1, 8, 3, 5, 9, 6, 1, 1, 5, 2, 5, 7, 2, 4, 2, 7, 0, 8, 9, 7, 2, 4, 5...
[ "nonn", "easy", "cons" ]
A306349
[ 1, 4, 13, 35, 99 ]
[ "nonn", "more" ]
A340605
[ 5, 11, 14, 17, 21, 23, 26, 31, 35, 38, 39, 41, 44, 47, 49, 57, 58, 59, 65, 66, 67, 68, 73, 74, 83, 86, 87, 91, 92, 95, 97, 99, 102, 103, 104, 106, 109, 110, 111, 122, 124, 127, 129, 133, 137, 138, 142, 143, 145, 149, ...
[ "nonn" ]
A176321
[ 5, 1, 3, 8, 9, 9, 3, 3, 1, 4, 5, 5, 8, 7, 3, 7, 9, 9, 9, 4, 0, 2, 5, 4, 3, 6, 8, 5, 6, 9, 9, 7, 9, 5, 8, 6, 1, 1, 7, 9, 7, 1, 2, 4, 4, 4, 5, 1, 2, 2, 5, 4, 1, 9, 6, 1, 7, 0, 7, 6, 0, 1, 3, 4...
[ "cons", "nonn" ]
A180691
[ 1, 20736, 35831808, 429981696, 5159780352, 61917364224, 743008370688, 8916100448256, 9.539621664406901e+26, 106993205379072, 1.1447545997288282e+28, 12, 1.3737055196745938e+29, 144, 15407021574586368, 1.6484466236095125e+30 ]
[ "nonn", "base" ]
A010569
[ 10, 80, 2160, 82720, 3737120, 186303840, 9945915840, 558476528000, 32597366872320, 1961752814181280, 121020530395783040, 7620016712806580000 ]
[ "nonn", "more" ]
A232577
[ 115892, 67979266, 65570285646, 60461419039912, 55003296878624380, 50532651470537360000, 4.627888645661368e+22, 4.240895085467379e+25, 3.8862452306601884e+28, 3.56102807690617e+31 ]
[ "nonn" ]
A123390
[ 1, 2, 1, 3, 4, 2, 1, 5, 6, 3, 7, 8, 4, 2, 1, 9, 10, 5, 11, 12, 6, 3, 13, 14, 7, 15, 16, 8, 4, 2, 1, 17, 18, 9, 19, 20, 10, 5, 21, 22, 11, 23, 24, 12, 6, 3, 25, 26, 13, 27, 28, 14, 7, 29, 30, 15, 31, 32,...
[ "nonn", "tabf" ]
A106479
[ 1, -1, -1, 1, -1, 3, -3, -1, 7, -9, 5, -1, -7, 25, -27, -3, 29, -41, 55, -25, -73, 161, -143, -11, 217, -387, 447, -99, -737, 1377, -1219, 209, 1761, -3999, 4357, -1087, -5311, 11463, -12475, 4723, 12705, -33133, 38839, -15005, ...
[ "easy", "sign" ]
A215526
[ 1, 1, 2, 3, 5, 4, 10, 7, 17, 24, 22, 25, 23, 47, 27, 70, 37, 73, 38, 74, 65, 76, 87, 114, 125, 115, 150, 185, 223, 250, 245, 473, 360, 718, 365, 788, 725, 875, 726, 1000, 727, 1245, 912, 1269, 1787, 1629, 1861, 1852, 208...
[ "nonn", "easy" ]
A159358
[ 21, 10863, 485580, 5524819, 34063605, 147025901, 501203288, 1443386025, 3661046269, 8408644815, 17831404296, 35411163363, 66561697945, 119403667269, 205752113900, 342352218641, 552401782713, 867401681215, 1329378303444 ]
[ "nonn" ]
A368777
[ 1, 2, 1, 2, 1, 6, 1, 2, 1, 2, 1, 12, 1, 2, 1, 2, 1, 6, 1, 2, 1, 2, 1, 12, 1, 2, 1, 2, 1, 6, 1, 2, 1, 2, 1, 12, 1, 2, 1, 2, 1, 6, 1, 2, 1, 2, 1, 12, 1, 2, 1, 2, 1, 6, 1, 2, 1, 2, 1, 60, 1, 2, 1...
[ "nonn", "easy" ]
A129255
[ 1, 0, 91, 910, 16380, 272272, 4919460, 93419352, 1868513010, 39238479280, 863247190806, 19854684036460, 476512419579196, 11912810484279600, 309733072600927300, 8362792960207653000, 234158202885844700000 ]
[ "nonn" ]
A382893
[ 1, 2, 11, 60, 365, 2350, 15767, 109048, 771993, 5567066, 40751267, 302018484, 2261763205, 17088919814, 130108591407, 997225521136, 7688232599089, 59581977618098, 463890112373563, 3626778446099756, 28461425971969692, 224114796803735780, 1770236735807922000 ]
[ "nonn" ]
A388234
[ 1, 0, 9, 2, 4, 1, 8, 5, 7, 2, 0, 1, 5, 1, 2, 5, 9, 3, 0, 7, 8, 4, 4, 9, 6, 8, 7, 4, 7, 8, 5, 6, 2, 2, 1, 7, 2, 6, 6, 2, 9, 2, 6, 0, 2, 8, 0, 0, 8, 2, 6, 9, 0, 4, 2, 0, 0, 2, 3, 8, 2, 1, 1, 9...
[ "nonn", "cons" ]
A133976
[ 379811, 1173463, 2314723, 2315641, 2337607, 3182561, 3371237, 3372371, 3376991, 3379997, 3383777, 3411901, 3539857, 3710627, 3779873, 3791453, 3792179, 3795581, 3798737, 3831523, 3898513, 7338269, 7482569, 7539743 ]
[ "nonn", "base" ]
A063278
[ -1, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 7, 10, 11, 12, 11, 14, 13, 16, 15, 18, 17, 20, 17, 22, 21, 24, 21, 26, 23, 28, 25, 30, 27, 32, 27, 34, 31, 36, 31, 38, 33, 40, 35, 42, 37, 44, 37, 46, 41, 48, 41, 50, 43, 52,...
[ "sign" ]
A329049
[ 2, 3, 4, 5, 9, 16, 7, 25, 81, 256, 11, 49, 625, 6561, 65536, 13, 121, 2401, 390625, 43046721, 4294967296, 17, 169, 14641, 5764801, 152587890625, 1853020188851841, 18446744073709552000, 19, 289, 28561, 214358881, 33232930569601, 2.3283064365386964e+22...
[ "nonn", "tabl" ]
A197639
[ 3, 4, 5, 6, 8, 10, 12, 18, 24, 36, 48, 60, 72, 120, 180, 240, 360, 2520, 5040 ]
[ "nonn" ]
A069218
[ 1, 8, 3, 11, 7, 6, 13, 19, 16, 35, 17, 26, 43, 23, 22, 15, 37, 26, 21, 47, 34, 27, 61, 44, 35, 79, 38, 39, 77, 58, 45, 103, 74, 59, 133, 64, 197, 87, 142, 229, 371, 200, 571, 257, 276, 533, 809, 671, 740, 1411, 717, ...
[ "easy", "nonn" ]
A062870
[ 1, 1, 1, 3, 4, 20, 36, 252, 576, 5184, 14400, 158400, 518400, 6739200, 25401600, 381024000, 1625702400, 27636940800, 131681894400, 2501955993600, 13168189440000, 276531978240000, 1593350922240000, 36647071211520000, 229442532802560000, 5736063320064000000 ]
[ "nonn" ]
A117284
[ 1, 2, 3, 5, 7, 9, 10, 11, 13, 17, 19, 23, 29, 31, 37, 39, 41, 43, 45, 47, 52, 53, 54, 55, 57, 59, 61, 67, 68, 71, 73, 79, 83, 85, 89, 90, 97, 101, 103, 107, 109, 113, 114, 117, 127, 129, 131, 137, 139, 149, 151, 15...
[ "nonn" ]
A029526
[ 1, 13, 16, 224, 320, 355, 800, 7856, 8720, 11683, 18829, 36464, 42544, 159125 ]
[ "nonn", "base", "more" ]
A352634
[ 4, 6, 12, 24, 48, 60, 180, 240, 360, 720, 840, 1260, 5040, 7560, 10080, 55440, 110880, 166320, 665280, 1081080, 1441440, 6486480, 32432400, 61261200, 698377680, 735134400, 1102701600, 1396755360, 2205403200, 20951330400, 41902660800, 73329656400, 32125...
[ "nonn" ]
A107609
[ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 3, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 3, 4, 3, 3, 4, 4, 4...
[ "nonn" ]
A021963
[ 0, 0, 1, 0, 4, 2, 7, 5, 2, 8, 6, 7, 5, 7, 0, 3, 8, 5, 8, 1, 8, 5, 6, 1, 0, 0, 1, 0, 4, 2, 7, 5, 2, 8, 6, 7, 5, 7, 0, 3, 8, 5, 8, 1, 8, 5, 6, 1, 0, 0, 1, 0, 4, 2, 7, 5, 2, 8, 6, 7, 5, 7, 0, 3...
[ "nonn", "cons" ]
A329504
[ 1, 1, 2, 1, 4, 2, 1, 4, 5, 2, 1, 4, 8, 4, 2, 1, 4, 8, 8, 4, 2, 1, 4, 8, 12, 6, 4, 2, 1, 4, 8, 12, 11, 6, 4, 2, 1, 4, 8, 12, 16, 8, 6, 4, 2, 1, 4, 8, 12, 16, 14, 8, 6, 4, 2, 1, 4, 8, 12, 16, 20, ...
[ "nonn", "tabl", "easy" ]
A057873
[ 1, 1, 2, 5, 13, 29, 149, 217, 449, 855, 1578, 2834, 5445, 9425, 17054, 30095, 53610, 94905, 170505, 300335, 532606, 942870, 1669907, 2957734, 5236935, 9271871, 16416945, 29066281, 51463071, 91587523, 161792680, 286563514, 507342270 ]
[ "easy", "nonn" ]
A001825
[ 1, 35, 1974, 172810, 21967231, 3841278805, 886165820604, 261042753755556, 95668443268795340, 42707926241367380000, 2.282142260892942e+22, 1.4384681946935352e+25, 1.0562341153570752e+28 ]
[ "nonn" ]
A204967
[ 36522, 1085013, 31837899, 916967622, 26548318278, 768548149208, 22245382735903, 643910842041150, 18638431361258012, 539502218649996900, 15616268658553506000, 452023741831342300000, 1.3084141546692162e+22 ]
[ "nonn" ]
A233119
[ 123, 1182, 9514, 67130, 427059, 2495541, 13620058, 70213894, 344898281, 1625999707, 7398978182, 32644783397, 140193521403, 587883227613, 2413542952866, 9723315619156, 38513619901599, 150236979229584 ]
[ "nonn" ]
A196513
[ 0, 28, 308, 1218, 3298, 7250, 13938, 24388, 39788, 61488, 91000, 129998, 180318, 243958, 323078, 420000, 537208, 677348, 843228, 1037818, 1264250, 1525818, 1825978, 2168348, 2556708, 2995000, 3487328, 4037958, 4651318, 5331998, 6084750 ]
[ "nonn", "easy" ]
A370539
[ 1, 2, 8, 30, 118, 462, 1824, 7208, 28558, 113274, 449848, 1787968, 7111716, 28303548, 112700032, 448939744, 1788990454, 7131191202, 28433681832, 113398298336, 452345641820, 1804739556100, 7201621713568, 28741559322464, 114722405784428, 457971605148996, 18284220225...
[ "nonn" ]
A326663
[ 5, 12, 20, 26, 33, 41, 47, 54, 61, 68, 75, 83, 89, 96, 104, 110, 117, 124, 131, 138, 146, 152, 159, 167, 173, 180, 188, 194, 201, 209, 215, 222, 230, 236, 243, 250, 257, 264, 272, 278, 285, 293, 299, 306, 313, 320, 327, 33...
[ "nonn", "tabl", "easy" ]
A091295
[ 1, 2, 7, 10, 25, 147, 218, 446, 551, 5960, 14252, 63337, 118472, 183457, 951700, 3458334, 6284060, 2581691, 80743228, 259753425 ]
[ "nonn", "more" ]
A096113
[ 1, 2, 3, 6, 4, 8, 12, 18, 24, 36, 48, 72, 144, 5, 10, 15, 16, 20, 30, 32, 40, 54, 60, 64, 80, 90, 96, 108, 120, 160, 180, 192, 216, 240, 270, 288, 320, 324, 360, 384, 432, 480, 540, 576, 648, 720, 768, 864, 960, 1080, ...
[ "nonn" ]
A176427
[ 1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 4, 4, 1, 1, 5, 8, 8, 5, 1, 1, 6, 111, 374, 111, 6, 1, 1, 7, 1041, 8003, 8003, 1041, 7, 1, 1, 8, 6982, 106076, 245384, 106076, 6982, 8, 1, 1, 9, 39030, 1120878, 5309140, 5309140, ...
[ "nonn", "tabl", "uned" ]
A390198
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 7, 22, 75, 239, 762, 2385, 7441 ]
[ "nonn", "more" ]
A355475
[ 2, 6, 12, 30, 60, 120, 210, 240, 420, 840, 1260, 1680, 2310, 4620, 9240, 13860, 18480, 30030, 60060, 120120, 180180, 240240, 360360, 510510, 1021020, 2042040, 3063060, 4084080, 6126120, 8168160, 9699690, 12252240, 19399380, 38798760, 58198140, 77...
[ "nonn" ]
A315008
[ 1, 5, 9, 15, 18, 23, 28, 35, 38, 45, 48, 55, 57, 61, 65, 70, 81, 80, 91, 90, 101, 99, 103, 107, 112, 127, 122, 137, 132, 147, 141, 145, 149, 154, 173, 164, 183, 174, 193, 183, 187, 191, 196, 219, 206, 229, 216, 239, 225,...
[ "nonn" ]
A070186
[ 17, 97, 137, 151, 193, 241, 313, 409, 433, 449, 457, 569, 641, 673, 769, 809, 857, 929, 953, 977, 1009, 1129, 1297, 1409, 1489, 1657, 1697, 1873, 1993, 2017, 2137, 2153, 2297, 2377, 2417, 2609, 2617, 2633, 2713, 2729, 2753, 2777, 28...
[ "nonn", "easy" ]
A359262
[ 0, 1, 1, 3, 1, 3, 1, 3, 1, 1, 5, 3, 1, 3, 1, 1, 1, 5, 3, 1, 3, 3, 1, 1, 3, 1, 3, 1, 3, 1, 3, 1, 1, 3, 1, 5, 3, 3, 1, 1, 1, 5, 1, 3, 1, 3, 9, 3, 1, 3, 1, 1, 5, 1, 1, 1, 1, 5, 3, 1, 3, 1, 3, 1...
[ "nonn", "easy" ]
A204743
[ 225474, 7146451, 236324802, 7481378218, 247265390184, 8360347208200, 278759686904588, 9347436761778064, 315384047388866900, 10610563008333642000, 357097066563855450000, 1.2036249651975618e+22 ]
[ "nonn" ]
A210902
[ 1, 3, 17, 252, 6328, 297609, 25886499, 4205102578, 1265408306700, 707818003940086, 733897633220152300, 1.410044723992401e+21 ]
[ "nonn" ]
A224436
[ 3722, 1132836, 20633828, 209655204, 1629644756, 10870551924, 65747845364, 371694578676, 2000609407220, 10374914467572, 52260870309620, 257180428281588, 1241655454635764, 5899945032398580, 27659536839358196, 128183302103185140, 588138999088428800, 2675081423266133500, 120740401813...
[ "nonn", "easy" ]
A345063
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 3, 1, 3, 2, 1, 1, 7, 1, 1, 3, 5, 1, 5, 1, 6, 1, 1, 1, 4, 1, 1, 5, 8, 3, 21, 1, 9, 6, 5, 1, 3, 1, 1, 7, 11, 1, 11, 1, 21, 8, 1, 1, 1, 5, 15, 9, 14, 1, 3, 1, 15, ...
[ "nonn" ]
A107057
[ 1, 2, 5, 7, 13, 26, 67, 88, 114, 405, 446, 554, 598, 784 ]
[ "nonn" ]
A038696
[ 2, 6, 30, 330, 5610, 207570, 13907190, 1821841890, 468213365730, 243939163545330, 251501277615235230, 516332122944077960000, 2.1164453719477754e+24, 1.7373900058319289e+28, 2.8512307385707786e+32 ]
[ "nonn" ]
A204372
[ 5, 4, 4, -320, 4, 2504, -320, -9600, 4, 25924, 2504, -58560, -320, 114248, -9600, -200320, 4, 334088, 25924, -521280, 2504, 768000, -58560, -1119360, -320, 1565004, 114248, -2099840, -9600, 2829128, -200320, -3694080, 4, 4684800 ]
[ "sign" ]
A285318
[ 18, 36, 19, 8194, 37, 2147483648, 18014398509481984, 8195, 2056, 18014398509481984, 67108868, 16400, 2057, 1.5845632502852868e+29, 2097184, 67108869, 5.986310706507379e+51, 1.1972621413014757e+52, 16401, 295147905179352830000, 1.5845632502852868e+29, 34359738376 ]
[ "nonn" ]
A076310
[ 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 1, 5, 9, 13, 17, 21, 25, 29, 33, 37, 2, 6, 10, 14, 18, 22, 26, 30, 34, 38, 3, 7, 11, 15, 19, 23, 27, 31, 35, 39, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 5, 9, 13, 17, 21, ...
[ "nonn" ]