id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A317418
[ 10654, 10977, 10988, 11059, 11067, 11073, 11075, 11082, 11102, 11295, 11312, 11391, 11396, 11404, 11407, 11413, 11415, 11426, 11480, 11488, 11494, 11496, 11502, 11503, 11504, 11509, 11511, 11516, 11523, 11524, 11531, 11533, 11604 ]
[ "nonn" ]
A183692
[ 1970, 66658, 2235330, 75166498, 2525447442, 84872526674, 2852069116186, 95843840904146, 3220808030907306, 108234716039536000, 3637206631307124700, 122227654071983980000, 4.107437311725265e+21, 1.3802966130611774e+23 ]
[ "nonn" ]
A371025
[ 1, 0, 1, 0, 3, 2, 0, 15, 18, 6, 0, 105, 174, 108, 24, 0, 945, 1950, 1710, 720, 120, 0, 10395, 25290, 28080, 16920, 5400, 720, 0, 135135, 374850, 497070, 383040, 176400, 45360, 5040, 0, 2027025, 6267870, 9574740, 8883000, 5266800, 19...
[ "nonn", "tabl" ]
A193316
[ 0, 0, 1, 5, 9, 28, 53, 110, 229, 474 ]
[ "nonn", "more" ]
A039802
[ 1, -1, -1, 0, 1, 2, 0, 1, -1, -2, -2, -3, -2, -2, 1, 1, 3, 4, 7, 7, 8, 8, 7, 5, 2, -1, -6, -8, -15, -18, -24, -27, -31, -31, -35, -33, -30, -27, -21, -13, -4, 7, 21, 34, 51, 66, 84, 98, 117, 131, 145, 154, 164, ...
[ "sign" ]
A079556
[ 2, 2, 4, 16, 4294967296 ]
[ "nonn" ]
A258777
[ 1, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 17, 18, 20, 21, 24, 26, 28, 30, 31, 32, 33, 38, 40, 42, 44, 48, 50, 54, 57, 60, 62, 63, 65, 68, 72, 73, 74, 80, 82, 84, 85, 90, 91, 98, 102, 104, 108, 110, 114, 121, ...
[ "nonn", "nice" ]
A145459
[ 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 10, 55, 220, 715, 2002, 5005, 11440, 24310, 72930, 1016158, 18643560, 258952330, 2845739820, 26177047270, 209411148144, 1495786618975, 9722602868550, 58373582056075, 329869586346300, 1861266055353705 ]
[ "nonn" ]
A289602
[ 1, 1, 1, 3, 9, 30, 104, 365, 1286, 4542, 16092 ]
[ "nonn", "more" ]
A178140
[ 0, 0, 0, 0, 0, 0, 5040, 589824, 6531840, 98304000, 548856000, 3822059520, 14841066240, 67711795200, 208702494000, 726855843840, 1906252508160, 5500708061184, 12796310741760, 32142458880000, 68146033536000 ]
[ "nonn", "easy" ]
A217206
[ 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0...
[ "nonn" ]
A017528
[ 0, 429981696, 110075314176, 2821109907456, 28179280429056, 167961600000000, 722204136308736, 2478758911082496, 7213895789838336, 18509302102818816, 42998169600000000, 92170395205042180 ]
[ "nonn", "easy" ]
A384566
[ 0, 30, 546, 3900, 17220, 56730, 153510, 360696, 762120, 1482390, 2698410, 4652340, 7665996, 12156690, 18654510, 27821040, 40469520, 57586446, 80354610, 110177580, 148705620, 197863050, 259877046, 337307880, 433080600, 550518150, 693375930, 865877796, 107275350...
[ "nonn", "easy", "changed" ]
A258555
[ 44, 112, 210, 344, 506, 683, 894, 1140, 1421, 1725, 2071, 2460, 2892, 3355, 3868, 4432, 5047, 5701, 6413, 7184, 8014, 8891, 9834, 10844, 11921, 13053, 14259, 15540, 16896, 18315, 19816, 21400, 23067, 24805, 26633, 28552, 30562, 32651, 34838...
[ "nonn" ]
A382317
[ 1, 1, 0, 0, 1, 2, 1, -1, -2, 0, 1, -2, -6, -6, 0, 4, 1, -4, 1, 16, 26, 19, 8, 14, 33, 35, 2, -38, -47, -30, -45, -111, -170, -146, -58, -6, -23, 0, 180, 451, 610, 582, 547, 670, 792, 546, -154, -934, -1444, -1892, -2...
[ "sign" ]
A203564
[ 3, 3, 3, 3, 9, 3, 3, 9, 9, 3, 3, 33, 87, 33, 3, 3, 53, 177, 177, 53, 3, 3, 183, 993, 5673, 993, 183, 3, 3, 395, 10833, 32613, 32613, 10833, 395, 3, 3, 1249, 35619, 513903, 2577513, 513903, 35619, 1249, 3, 3, 3141, 219873, ...
[ "nonn", "tabl" ]
A014762
[ 16, 100, 36, 3136, 784, 64, 15876, 7056, 1296, 44100, 14400, 100, 213444, 108900, 627264, 48400, 4356, 144, 2944656, 81796, 6084, 4008004, 132496, 196, 130873600, 64128064, 19079424, 3312400, 313600, 14400, 256, 590976100, 378224704 ]
[ "nonn", "tabf" ]
A320385
[ 1, 1, 1, 1, 1, 2, 1, 2, 2, 2, 2, 3, 2, 3, 4, 3, 3, 5, 3, 5, 6, 4, 5, 7, 5, 7, 8, 6, 7, 10, 8, 9, 11, 8, 11, 13, 9, 13, 15, 12, 14, 17, 13, 16, 20, 15, 18, 22, 18, 21, 25, 20, 23, 27, 23, 28, 30, 26, 3...
[ "nonn" ]
A074381
[ 1, 0, 1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 0, 1, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1...
[ "nonn", "easy" ]
A358731
[ 4, 6, 7, 10, 13, 17, 22, 29, 41, 59, 62, 79, 109, 179, 254, 277, 293, 401, 599, 1063, 1418, 1609, 1787, 1913, 2749, 4397, 8527, 10762, 11827, 13613, 15299, 16519, 24859, 42043, 87803 ]
[ "nonn", "more" ]
A270018
[ 1, 5, 5, 37, 9, 109, 13, 213, 13, 333, 29, 493, 33, 685, 69, 877, 77, 1133, 93, 1421, 85, 1725, 125, 2069, 137, 2457, 141, 2837, 165, 3293, 181, 3757, 209, 4209, 233, 4733, 289, 5285, 309, 5837, 309, 6481, 405, 7173, 325, 7789...
[ "nonn", "easy" ]
A164356
[ 1, 4, 6, 4, 2, 4, 6, 4, 2, 4, 6, 4, 2, 4, 6, 4, 2, 4, 6, 4, 2, 4, 6, 4, 2, 4, 6, 4, 2, 4, 6, 4, 2, 4, 6, 4, 2, 4, 6, 4, 2, 4, 6, 4, 2, 4, 6, 4, 2, 4, 6, 4, 2, 4, 6, 4, 2, 4, 6, 4, 2, 4, 6, 4...
[ "nonn", "easy" ]
A201709
[ 11, 41, 251, 491, 641, 811, 2251, 4001, 6761, 7841, 9001, 10891, 12251, 13691, 16001, 16811, 22091, 23041, 32491, 33641, 40961, 50411, 68891, 72251, 73961, 81001, 82811, 86491, 98011, 108161, 110251, 112361, 121001, 125441, 127691 ]
[ "nonn", "easy" ]
A202983
[ 1, 63, 1233, 16854, 239196, 3557168, 52328419, 764541713, 11194473148, 164061008324, 2403403907914, 35204470177631, 515704944067269, 7554581118847553, 110665921163215780, 1621126629146201900 ]
[ "nonn" ]
A243182
[ 0, 2, 5, 8, 9, 17, 18, 20, 26, 29, 32, 36, 41, 45, 50, 53, 65, 68, 72, 74, 80, 81, 89, 90, 98, 101, 104, 113, 116, 117, 122, 125, 128, 137, 144, 146, 149, 153, 162, 164, 170, 173, 180, 185, 194, 197, 200, 212, 218, 221...
[ "nonn" ]
A085832
[ 5, 17, 1889, 21377, 183809, 83969, 40961, 79003649, 245235713, 5767169, 1004535809, 897581057, 41238396929, 13555990529, 2357400174593, 3438121320449, 12360915877889, 188188287041537, 286010462175233 ]
[ "nonn" ]
A206747
[ 15680, 793152, 43894936, 2475217568, 140074119984, 7932406245672, 449274384195312, 25446640113989390, 1441291246284432100, 81634472380414700000, 4.6237628559084513e+21, 2.618891713090652e+23 ]
[ "nonn" ]
A321459
[ 1, 0, 0, 1, 0, 0, 2, 0, 0, 3, 0, 1, 5, 0, 2, 6, 0, 4, 10, 1, 6, 13, 3, 10, 19, 5, 15, 26, 10, 23, 37, 16, 32, 52, 26, 48, 74, 38, 70, 100, 59, 101, 138, 85, 144, 189, 126, 204, 256, 180, 284, 345, 262, 392, 4...
[ "nonn" ]
A180657
[ 1, -3, 0, 4, -9, 105, -308, 36, -423, 2387, -26004, 104472, -50617, 119889, -5466072, 3154072, 51692571, -2921193, 351666136, -1278405156, 11188330461, -68445012691, 553299094188, -4915961459556 ]
[ "sign", "frac", "easy" ]
A208142
[ 2, 4, 4, 6, 16, 6, 9, 36, 36, 8, 12, 81, 108, 64, 10, 16, 144, 324, 240, 100, 12, 20, 256, 720, 900, 450, 144, 14, 25, 400, 1600, 2400, 2025, 756, 196, 16, 30, 625, 3000, 6400, 6300, 3969, 1176, 256, 18, 36, 900, 5625, 1...
[ "nonn", "tabl" ]
A287308
[ 17, 41, 401, 601, 701, 751, 1051, 1151, 1201, 1301, 1451, 1601, 1801, 1901, 1951, 2251, 2351, 18233, 19609, 20297, 20641, 21673, 25457, 25801, 26489, 26833, 31649, 33713, 34057, 35089, 36809, 38873, 39217, 41281, 41969, 46441, 47129, 49193, ...
[ "nonn", "base", "easy" ]
A340595
[ 2, 4, 8, 21, 42, 65, 80, 217, 488, 721, 2120, 2349, 2796, 9214, 16043, 23287, 28626, 43588, 58176, 116982, 213435, 444329, 640673, 967248, 1399895, 1449156, 1528785, 2768054, 2915135, 3631071, 3673118, 5032731, 12977420 ]
[ "nonn" ]
A356150
[ 1, 3, 4, 10, 8, 12, 11, 25, 25, 18, 26, 28, 30, 33, 26, 56, 62, 61, 56, 56, 39, 63, 64, 67, 62, 66, 72, 77, 80, 78, 57, 119, 139, 143, 137, 135, 134, 119, 134, 134, 134, 81, 120, 138, 139, 147, 142, 146, 147, 148, 13...
[ "nonn", "base" ]
A260155
[ 1, 4, 32, 318, 3530, 41944, 522010, 6719018, 88726840, 1195527822, 16373466714, 227280520316, 3190715296368, 45226324937400, 646392346047930, 9305481272839662, 134815491199174480, 1964195875748859000, 28761433275110250000, 423052415434610440000 ]
[ "nonn", "easy", "walk" ]
A219513
[ 2, 3, 11, 68, 620, 9292, 241413, 12385870, 1316975534, 278163891037 ]
[ "nonn" ]
A049449
[ 0, 1, 2, 3, 6, 4, 10, 15, 12, 5, 14, 24, 21, 28, 40, 35, 20, 6, 18, 33, 30, 44, 65, 60, 36, 45, 84, 104, 77, 70, 88, 63, 30, 7, 22, 42, 39, 60, 90, 85, 52, 70, 133, 168, 126, 119, 152, 112, 55, 66, 144, 209, 170,...
[ "nonn", "easy", "tabf" ]
A175375
[ 1, 6, 12, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, 24, 24, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, 24, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0...
[ "nonn", "look" ]
A380698
[ 1, 1, 1, 2, 1, 1, 1, 1, 2, 1, 1, 1, 1, 2, 2, 2, 1, 1, 1, 1, 1, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 2, 3, 3, 2, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2...
[ "nonn" ]
A337796
[ 1, 16, 5728, 758857152 ]
[ "nonn", "more", "bref" ]
A359774
[ 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0...
[ "nonn" ]
A387988
[ 1, 3, 6, 15, 33, 89, 227, 653, 1869, 5639, 17097, 53152, 166083, 525243, 1668847 ]
[ "nonn", "more" ]
A372970
[ 1, 2, 1, 2, 2, 3, 2, 4, 2, 5, 2, 4, 3, 4, 3, 4, 4, 4, 4, 4, 4, 5, 4, 6, 4, 6, 4, 7, 4, 7, 4, 8, 4, 8, 4, 9, 4, 9, 4, 10, 4, 10, 4, 8, 5, 9, 5, 8, 6, 8, 6, 8, 6, 9, 6, 8, 7, 8, 7, 8, 7, 8, 7, ...
[ "nonn" ]
A123149
[ 1, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 2, 2, 1, 0, 1, 2, 3, 2, 1, 0, 1, 3, 5, 5, 3, 1, 0, 1, 3, 6, 7, 6, 3, 1, 0, 1, 4, 9, 13, 13, 9, 4, 1, 0, 1, 4, 10, 16, 19, 16, 10, 4, 1, 0, 1, 5, 14, 26, 35, 35, ...
[ "nonn", "tabl", "easy" ]
A032516
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 55, 57, 59, 61, 63, 65, 67, 69, 71, 73, 75, 77, 79, 81, 84, 87, 90, 93, 96, 99, 102, 1...
[ "nonn" ]
A020607
[ 2, 3, 5, 11, 13, 23 ]
[ "nonn", "fini", "full" ]
A070978
[ 2, 4, 6, 8, 11, 13, 16, 19, 22, 25, 29, 32, 35, 39, 43, 46, 50, 54, 58, 62, 66, 70, 74, 78, 83, 87, 91, 96, 100, 105, 110, 114, 119, 124, 128, 133, 138, 143, 148, 153, 158, 163, 168, 174, 179, 184, 189, 195, 200, 205, ...
[ "easy", "nonn" ]
A253122
[ 4, 12, 16, 40, 64, 144, 256, 544, 1024, 2112, 4096, 8320, 16384, 33024, 65536, 131584, 262144, 525312, 1048576, 2099200, 4194304, 8392704, 16777216, 33562624, 67108864, 134234112, 268435456, 536903680, 1073741824, 2147549184, 4294967296 ]
[ "nonn" ]
A271096
[ 1, 5, 20, 88, 332, 1276, 5204, 19492, 74536, 288525, 1140005, 4512593, 18022937, 71970505, 287448752, 1149604849 ]
[ "nonn", "more" ]
A246548
[ 462807341, 115, 6302, 294590, 106985762 ]
[ "nonn" ]
A136092
[ 1, 1, 3, 15, 104, 909, 9449, 112398, 1489410, 21562086, 336086022, 5577242292, 97671172836, 1792348213025, 34268124834495, 679376016769260, 13911118850603610, 293220749128031040 ]
[ "nonn" ]
A072058
[ 5, 7, 11, 15, 23, 3, 35, 39, 47, 59, 21, 15, 83, 87, 95, 107, 119, 123, 15, 143, 21, 159, 167, 179, 195, 203, 69, 215, 219, 227, 255, 263, 55, 93, 299, 303, 105, 327, 335, 347, 359, 33, 383, 129, 395, 399, 141, 447, 455,...
[ "nonn" ]
A241994
[ 1, 0, 8, 6, 6, 7, 4, 1, 6, 6, 1, 6, 0, 7, 7, 3, 9, 5, 2, 1, 3, 5, 7, 0, 6, 7, 2, 0, 8, 2, 0, 9, 6, 5, 2, 3, 3, 2, 9, 5, 9, 8, 3, 3, 0, 8, 8, 7, 0, 3, 0, 2, 1, 0, 2, 0, 4, 9, 5, 1, 8, 4, 1, 0...
[ "nonn", "cons", "easy" ]
A167564
[ 1, 3, 11, 47, 241, 1457, 10223, 81835, 736637, 7366661, 81034027, 972410303, 12641339465, 176978768137, 2654681568551, 42474905237267, 722073389475733, 12997321011978124, 246949099232271580, 4938981984661217000 ]
[ "easy", "nonn" ]
A072613
[ 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 8, 9, 10, 10, 10, 11, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 14, 14, 14, 14, 15, 15, 16, 17, 17...
[ "easy", "nonn" ]
A314430
[ 1, 5, 8, 13, 17, 23, 25, 29, 36, 41, 41, 49, 51, 57, 59, 66, 71, 73, 79, 81, 89, 89, 96, 101, 105, 107, 113, 117, 121, 126, 131, 135, 139, 143, 147, 153, 156, 161, 165, 171, 171, 179, 181, 188, 191, 195, 201, 203, 209, ...
[ "nonn" ]
A235559
[ 256, 2612, 2612, 23024, 86742, 23024, 180640, 2481481, 2481481, 180640, 1321956, 58495571, 269127070, 58495571, 1321956, 9182760, 1190247008, 24006644081, 24006644081, 1190247008, 9182760, 61590128, 21374536916, 1779283912244 ]
[ "nonn", "tabl" ]
A288208
[ 1, 0, 0, 0, 2, 2, 27, 214, 1695, 15482, 159019, 1775664, 21542628, 282722448, 3989526469, 60239477384, 969280731152, 16558273230450, 299319139977198, 5708394302035014, 114547714715532530, 2412649672553638000, 53220018152831890000, 1.2270135939014745e+21, 2.95128399649...
[ "nonn" ]
A367883
[ 1, 0, 4, 12, 160, 1440, 20928, 309120, 5604352, 110896128, 2480762880, 60669480960, 1625897189376, 47158671605760, 1475038408015872, 49434699759943680, 1768135111433257000, 67206058595340780000, 2.705431746964328e+21 ]
[ "nonn" ]
A177309
[ 1, 1, 3432, 399072960, 472518347558400, 102038786510159790000, 9.792481437399343e+24 ]
[ "nonn" ]
A319066
[ 1, 1, 3, 5, 10, 14, 26, 35, 59, 82, 128, 176, 273, 371, 553, 768, 1119, 1544, 2235, 3084, 4410, 6111, 8649, 11982, 16901, 23383, 32780, 45396, 63365, 87622, 121946, 168407, 233605, 322269, 445723, 613922, 847131, 1164819, 1603431, 2201370...
[ "nonn" ]
A044886
[ 3376, 3377, 3378, 3379, 3380, 3381, 3382, 3383, 3384, 3385, 3386, 3387, 3388, 3389, 3391, 3407, 3423, 3439, 3455, 3471, 3487, 3503, 3519, 3535, 3551, 3567, 3583, 3599, 3601, 3602, 3603, 3604, 3605, 3606, 3607, 3608 ]
[ "nonn", "base" ]
A340237
[ 9, 27, 33, 35, 65, 81, 99, 121, 221, 243, 297, 363, 513, 585, 627, 705, 729, 891, 1089, 1539, 1541, 1881, 2145, 2187, 2299, 2673, 3267, 3605, 4181, 4573, 4579, 5265, 5633, 6721, 6993, 7865, 8019, 8979, 9131, 9801, 10307, 10877, 1088...
[ "nonn" ]
A377782
[ 1, 1, 1, 1, 0, 2, 1, 1, 0, 2, 0, 2, 0, 0, 3, 1, 0, 2, 0, 0, 0, 4, 0, 2, 0, 2, 0, 2, 0, 2, 1, 0, 0, 0, 0, 5, 0, 0, 0, 4, 0, 2, 0, 0, 0, 4, 0, 2, 0, 0, 0, 4, 0, 0, 0, 0, 0, 6, 0, 2, 0, 0, 3, 0...
[ "nonn" ]
A029568
[ 343027, 387127, 1344517, 1430449, 2125642, 2383417, 3537667, 3542797, 5808067, 7592577, 7834042, 7930117, 9241627, 12122947, 15250942, 21928717, 37908667, 39355867, 39627217, 49825117, 60738622, 71092717, 90640927, 110995807 ]
[ "nonn" ]
A306195
[ 2, 3, 77, 679, 2809, 18659, 274511, 1123471, 10761677, 222222219, 1329025059, 11257702583, 298693399003, 8722140365427, 18535191127229, 600479950316063, 21047228319925110, 44095690303774230, 1686791892208311000 ]
[ "nonn", "base" ]
A069686
[ 127, 131, 137, 139, 151, 157, 173, 179, 223, 227, 229, 233, 239, 251, 257, 271, 277, 331, 337, 353, 359, 373, 379, 421, 431, 433, 439, 457, 479, 521, 523, 557, 571, 577, 631, 653, 659, 673, 677, 727, 733, 739, 751, 757, 773, 8...
[ "base", "nonn", "easy" ]
A278037
[ 10, 300, 9405, 271701, 7586055, 207778365, 5643858222, 152750888154, 4128157816596, 111500380788894, 3010918493945871, 81298895147719700, 2195110845820568300, 59268393196729780000, 1.600250528431548e+21, 4.320680225498945e+22, 1.1665840277877968e+24 ]
[ "nonn", "easy" ]
A284998
[ 1, 0, 1, 1, 2, 6, 14, 40, 120, 389, 1355, 5040, 19884, 82834, 362880, 1665837, 7988887, 39916800, 207304278, 1116669003, 6227020800, 35886673906, 213407853922, 1307674368000, 8245960182038, 53446811415729, 355687428096000, 2427977164711192, 16984208960998388 ]
[ "nonn", "easy" ]
A256538
[ 1, -1, -1, 0, 0, 1, 0, 1, 0, 0, 0, 0, -1, 0, 0, -1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, -1, 1, 1, 0, 1, -1, 0, -1, 0, 0, 1, 0, 1, 0, 0,...
[ "sign" ]
A025656
[ 0, 0, 0, 1, 0, 1, 0, 1, 0, 2, 1, 0, 2, 1, 0, 2, 1, 3, 0, 2, 1, 3, 0, 2, 1, 3, 0, 2, 4, 1, 3, 0, 2, 4, 1, 3, 0, 2, 4, 1, 3, 5, 0, 2, 4, 1, 3, 5, 0, 2, 4, 1, 3, 5, 0, 2, 4, 6, 1, 3, 5, 0, 2, 4...
[ "nonn", "easy", "changed" ]
A075035
[ 20, 32, 44, 56, 80, 84, 92, 104, 116, 140, 170, 176, 200, 212, 216, 224, 230, 242, 260, 296, 300, 324, 332, 344, 374, 380, 392, 434, 440, 444, 464, 476, 500, 506, 512, 560, 594, 602, 608, 620, 632, 644, 650, 696, 704, 714, 7...
[ "nonn" ]
A073311
[ 1, 1, 2, 2, 3, 2, 5, 4, 4, 3, 7, 4, 8, 5, 6, 7, 11, 6, 12, 7, 8, 9, 15, 8, 13, 10, 13, 9, 17, 8, 19, 13, 13, 13, 15, 11, 23, 15, 17, 14, 26, 11, 28, 17, 18, 18, 30, 15, 26, 17, 21, 19, 32, 16, 25, 20, 23,...
[ "nonn" ]
A381189
[ 6, 26, 38, 57, 62, 69, 77, 82, 87, 106, 145, 155, 177, 206, 209, 219, 221, 253, 309, 319, 339, 341, 358, 382, 451, 485, 497, 502, 566, 685, 695, 734, 781, 849, 866, 893, 905, 949, 1018, 1037, 1079, 1081, 1101, 1157, 1167, 1169...
[ "nonn" ]
A048014
[ 0, 0, 0, 0, 0, 1, 2, 12, 42, 63, 168, 378, 504, 1014, 1914, 2420, 4620, 9295, 12012, 27027, 63083, 84119, 199304, 456484, 601664, 1339464, 2896664, 3755844, 8093214, 17441739, 22591800, 49876200, 111029050, 144780009 ]
[ "nonn" ]
A206040
[ 30, 150, 930, 2760, 3450, 4980, 9150, 14190, 19380, 20040, 21240, 28080, 33930, 57660, 59070, 63600, 69120, 76710, 80340, 81450, 97380, 100920, 105960, 114750, 117420, 122340, 134250, 138540, 143670, 150090, 164580, 184470, 184620, 189690, 231360, ...
[ "nonn" ]
A024087
[ 1, 6, -4047, -531098, -16774815, -244123818, -2176664687, -13840463658, -68713711935, -282389182874, -999717524751, -3136451049978, -8902259161055, -23201196112074, -56015689302447, -124998776380682, -248242046141055 ]
[ "sign", "easy" ]
A317497
[ 1, 3, 9, 27, 1, 81, 6, 243, 27, 729, 108, 1, 2187, 405, 9, 6561, 1458, 54, 19683, 5103, 270, 1, 59049, 17496, 1215, 12, 177147, 59049, 5103, 90, 531441, 196830, 20412, 540, 1, 1594323, 649539, 78732, 2835, 15, 4782969, 2125764, 2952...
[ "tabf", "nonn", "easy" ]
A175560
[ 0, 0, 2, 1, 0, 1, 0, 6, 8, 1, 9, 4, 1, 8, 8, 4, 12, 10, 5, 9, 20, 0, 2, 4, 7, 8, 17, 13, 16, 28, 19, 29, 2, 33, 4, 19, 4, 27, 38, 35, 2, 13, 41, 34, 26, 3, 18, 19, 32, 29, 20, 47, 39, 28, 50, 23, 23, 40...
[ "base", "nonn" ]
A253167
[ 1, 871, 2841, 1006671, 3280049, 1161698999, 3785175241, 1340599639711, 4368088949601, 1547050822529031, 5040770862665849, 1785295308598863600, 5817045207427442000, 2.060229239072266e+21, 6.712865128600405e+21, 2.3775027565940865e+24 ]
[ "nonn", "easy" ]
A283566
[ 0, 4, 169, 6812, 945100, 226897932, 129997769458, 172466774677716, 522509795096193600, 3.7486135000116447e+21, 6.298226012060889e+25 ]
[ "nonn" ]
A160129
[ 11, 17, 23, 29, 37, 43, 47, 53, 59, 67, 71, 79, 89, 89, 101, 101, 109, 131, 127, 131, 131, 137, 179, 149, 157, 193, 191, 179, 179, 193, 193, 197, 211, 227, 223, 223, 227, 233, 257, 251, 257, 257, 263, 277, 277, 281, 311, 3...
[ "nonn" ]
A385943
[ 1, 1, 5, 988, 2888933, 59194266336, 5550172939486537, 1.812719786900515e+21, 1.7061463656587605e+27, 4.0253350067440773e+33, 2.139236112012147e+40, 2.3531644295394528e+47 ]
[ "nonn" ]
A049291
[ 1, 15, 625, 54335, 8563601, 2228419359, 893451975473, 523337983164799, 429463651385469630, 477364501208149260000, 6.990866889513912e+23, 1.3180727231020235e+27, 3.1375146365203046e+30 ]
[ "easy", "nice", "nonn" ]
A152513
[ 0, 5, 497, 42581, 3584693, 301183841, 25300030889, 2125207418285, 178517461842461, 14995467100301176, 1259619238806161700, 105808016078078480000, 8.887873350698982e+21, 7.465813614597803e+23, 6.271283436262958e+25, 5.267878086460945e+27 ]
[ "nonn", "easy" ]
A311596
[ 1, 4, 8, 12, 18, 22, 26, 32, 34, 40, 46, 50, 50, 58, 64, 62, 72, 78, 74, 86, 92, 96, 90, 104, 110, 102, 118, 124, 114, 132, 138, 142, 130, 150, 156, 142, 164, 170, 154, 178, 184, 188, 170, 196, 202, 182, 210, 216, 194, ...
[ "nonn" ]
A132697
[ 2, 2, 2, 8, 1, 6, 9, 2, 0, 3, 2, 8, 6, 5, 3, 4, 7, 0, 0, 7, 6, 4, 3, 7, 2, 6, 8, 7, 2, 1, 5, 2, 0, 1, 0, 6, 8, 4, 8, 2, 4, 3, 5, 0, 4, 0, 3, 6, 6, 3, 9, 0, 2, 8, 2, 4, 6, 7, 3, 4, 2, 8, 1, 6...
[ "cons", "nonn" ]
A239330
[ 0, 0, 0, 1, 1, 2, 2, 3, 3, 2, 4, 2, 5, 3, 3, 4, 1, 3, 4, 4, 5, 4, 4, 4, 4, 3, 3, 5, 5, 5, 3, 6, 8, 5, 5, 3, 5, 6, 4, 4, 7, 6, 4, 4, 3, 5, 3, 4, 3, 5, 4, 4, 3, 3, 4, 2, 4, 2, 4, 4, 3, 4, 9, 3...
[ "nonn" ]
A082883
[ 103, 457, 1009, 1663, 2953, 3079, 6043, 12007, 17707, 20749, 21499, 25579, 28537, 30703, 41227, 54367, 55663, 59443, 66973, 70309, 81547, 83557, 90019, 97003, 101359, 102559, 105367, 108499, 116239, 120847, 126019, 129733, 133873, 138403 ]
[ "nonn" ]
A307810
[ 1, 100, 13924, 2371600, 453093796, 92598490000, 19745403216400, 4333667896360000, 971177275449892900, 221106619001508500000, 5.096739489169271e+22, 1.1866732390447357e+25, 2.7858347894806175e+27, 6.58549235163074e+29 ]
[ "nonn" ]
A325938
[ 0, 1, 1, 1, 1, 16, 1, 1, 1, 16, 1, 64, 1, 16, 16, 1, 1, 64, 1, 64, 16, 16, 1, 256, 1, 16, 1, 64, 1, 6561, 1, 1, 16, 16, 16, 512, 1, 16, 16, 256, 1, 6561, 1, 64, 64, 16, 1, 1024, 1, 64, 16, 64, 1, 256, 16, 2...
[ "nonn" ]
A185786
[ 1, 6, 6, 21, 35, 21, 56, 120, 120, 56, 126, 315, 405, 315, 126, 252, 700, 1050, 1050, 700, 252, 462, 1386, 2310, 2695, 2310, 1386, 462, 792, 2520, 4536, 5880, 5880, 4536, 2520, 792, 1287, 4290, 8190, 11466, 12740, 11466, 8190, 429...
[ "nonn", "tabl" ]
A044582
[ 14, 78, 119, 142, 206, 270, 334, 398, 462, 526, 590, 631, 654, 718, 782, 846, 959, 974, 1038, 1102, 1143, 1166, 1230, 1294, 1358, 1422, 1486, 1550, 1614, 1655, 1678, 1742, 1806, 1870, 1934, 1998, 2062, 2126, 2167, 2190, 2254 ]
[ "nonn", "base" ]
A070854
[ 11, 101, 3001, 70001, 700001, 22000001, 30000001, 600000001, 6000000001, 30000000001, 1900000000001, 18000000000001, 40000000000001, 3900000000000001, 6000000000000001, 130000000000000000, 3700000000000000000, 15000000000000000000, 150000000000000000000, 600000000000000000000, ...
[ "nonn" ]
A100701
[ 2, 3, 11, 47, 575, 27647, 15925247, 440301256703, 7011906707722863000, 3.0873513353015836e+30, 2.164821953709831e+49 ]
[ "nonn" ]
A200692
[ 1, 4, 0, 6, 2, 5, 2, 3, 2, 3, 2, 9, 7, 3, 6, 1, 4, 6, 8, 0, 8, 0, 5, 9, 3, 2, 9, 6, 3, 5, 2, 0, 4, 2, 3, 2, 1, 5, 4, 1, 6, 6, 8, 2, 3, 6, 6, 7, 5, 4, 7, 1, 9, 7, 4, 8, 7, 1, 2, 0, 1, 5, 0, 5...
[ "nonn", "cons" ]
A204986
[ 1, 1, 2, 3, 7, 2, 4, 6, 16, 7, 46, 5, 67, 4, 7, 10, 29, 16, 154, 12, 16, 46, 56, 9, 191, 67, 154, 8, 379, 7, 11, 15, 46, 29, 67, 23, 631, 154, 67, 18, 191, 16, 92, 57, 67, 56, 254, 14, 211, 191 ]
[ "nonn" ]
A279926
[ 0, 1, 522, 24329, 454250, 4905766, 36532244, 207705929, 961214238, 3784166376, 13066960126, 40511160326, 114681233758, 300599979884, 737035375772, 1705830324553, 3751239987240, 7887626314003, 15927815870322, 31031953887704, 58508991327728, 107133058597170 ]
[ "nonn" ]
A311977
[ 1, 4, 8, 13, 17, 22, 30, 26, 40, 36, 49, 41, 60, 54, 66, 60, 80, 65, 89, 72, 106, 74, 116, 86, 121, 93, 132, 108, 134, 116, 152, 115, 161, 124, 182, 120, 192, 138, 193, 143, 204, 164, 202, 170, 224, 167, 233, 174, 258, ...
[ "nonn" ]
A374868
[ 3, 10, 112, 1620, 39424, 1404000, 75841920, 6112753920, 742328893440, 136268470800000, 38081363493888000, 16296693648238080000, 1.0743612584546575e+22, 1.0968661020433308e+25, 1.7425075496868344e+28, 4.3253347261338355e+31 ]
[ "nonn" ]
A241516
[ 1, 2, 2, 3, 2, 2, 3, 2, 5, 2, 3, 2, 7, 3, 5, 2, 2, 2, 2, 7, 5, 3, 2, 3, 5, 2, 5, 2, 11, 3, 3, 2, 3, 2, 2, 7, 5, 2, 5, 2, 2, 2, 22, 5, 2, 3, 2, 3, 2, 7, 3, 7, 7, 11, 3, 5, 2, 15, 5, 3, 3, 2, 5,...
[ "nonn" ]