id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A286953
[ 1, -1, -1, 0, 4, -3, -4, 1, 14, -10, -14, 4, 39, -26, -40, 13, 101, -65, -105, 36, 238, -147, -251, 91, 534, -322, -569, 212, 1135, -666, -1222, 469, 2328, -1340, -2526, 987, 4606, -2600, -5035, 2002, 8867, -4928, -9751, 3926, 16624, -9100, -18382, 7488, 30499 ]
[ "sign" ]
A067978
[ 55, 144, 343, 720, 1440, 2770, 5197, 9564, 17345, 31090, 55200, 97236, 170147, 296040, 512555, 883620, 1517568, 2597606, 4432985, 7544820, 12809845, 21700934, 36689088, 61914600, 104306575, 175448640 ]
[ "nonn", "easy" ]
A271296
[ 3, 1, 39, -39, 99, -91, 191, -183, 319, -315, 471, -463, 639, -627, 863, -839, 1103, -1119, 1391, -1359, 1679, -1679, 1987, -1943, 2351, -2315, 2727, -2759, 3103, -3003, 3511, -3515, 4091, -4139, 4603, -4535, 5135, -5131, 5703, -5643, 6211, -6183, 6863 ]
[ "sign", "easy" ]
A278696
[ 2, 5, 11, 23, 29, 59, 83, 167, 173, 191, 491, 509, 569, 653, 659, 677, 1481, 1487, 1949, 2027, 2111, 4397, 4457, 4547, 4943, 5051, 5861, 6323, 6563, 13127, 13151, 13313, 13613, 13691, 13781, 13799, 15149, 15233, 17519, 17579, 17669, 39371, 39857, 40847, 40853, 43913, 44417, 52517, 53147, 59051 ]
[ "nonn", "base" ]
A305756
[ 1, 1, 8192, 707073, -754075135, -132208502783, 90102565204481, 25124693308972544, -11606164284986636000, -4.751761734938774e+21, 1.4958569559881447e+24, 8.900188448161017e+26, -1.811041539989577e+29 ]
[ "sign" ]
A056796
[ 0, 1, 2, 2, 3, 4, 3, 4, 4, 3, 4, 5, 4, 5, 5, 5, 5, 6, 4, 5, 5, 5, 6, 7, 5, 6, 6, 4, 5, 6, 5, 6, 6, 6, 7, 8, 5, 6, 6, 6, 6, 7, 6, 7, 7, 6, 7, 8, 6, 7, 7, 7, 7, 8, 5, 6, 6, 6, 7, 8, 6, 7, 7, 6, 7, 8, 7, 8, 8, 8, 9, 10, 6, 7, 7, 7, 7, 8, 7, 8, 7, 5, 6, 7, 6, 7, 8, 7, 8, 9, 6, 7, 8, 7, 8, 9, 7, 8, 8 ]
[ "nonn" ]
A317050
[ 0, 1, -1, -2, 2, 3, 5, 4, -4, -3, -5, -6, -10, -9, -7, -8, 8, 9, 7, 6, 10, 11, 13, 12, 20, 21, 19, 18, 14, 15, 17, 16, -16, -15, -17, -18, -14, -13, -11, -12, -20, -19, -21, -22, -26, -25, -23, -24, -40, -39, -41, -42, -38, -37, -35, -36, -28, -27, -29, -30 ]
[ "sign", "look", "base" ]
A053635
[ 0, 2, 6, 12, 24, 40, 84, 140, 288, 540, 1080, 2068, 4224, 8216, 16548, 32880, 65856, 131104, 262836, 524324, 1049760, 2097480, 4196412, 8388652, 16782048, 33554600, 67117128, 134218836, 268452240, 536870968, 1073777040, 2147483708, 4295033472, 8589938808 ]
[ "nonn" ]
A123218
[ 1, 1, -2, -1, 1, -2, -6, 2, 1, 1, -2, -11, 12, 11, -2, -1, 1, -2, -16, 22, 46, -22, -16, 2, 1, 1, -2, -21, 32, 106, -92, -106, 32, 21, -2, -1, 1, -2, -26, 42, 191, -212, -396, 212, 191, -42, -26, 2, 1, 1, -2, -31, 52, 301, -382, -1011, 792, 1011, -382, -301, 52, 31, -2, -1 ]
[ "tabf", "sign" ]
A119124
[ 1, 5, 9, 10, 101, 298, 301, 1761, 10113, 10114, 15133, 91010, 297134, 3329010, 10406301, 15133698, 30180826, 47989885, 101434130, 301468258, 942805541, 9544151561, 16977369885, 95335633898 ]
[ "nonn", "base", "more" ]
A229828
[ 6, 6, 13, 41, 167, 839, 5039, 35279, 282239, 2540159, 25401599, 279417599, 3353011199, 43589145599, 610248038399, 9153720575999, 146459529215999, 2489811996671999, 44816615940096000, 851515702861824000, 17030314057236480000, 357636595201966100000, 7.868005094443253e+21 ]
[ "nonn", "easy" ]
A284152
[ 0, 2, 3, 2, 0, 5, 7, 10, 3, 2, 0, 17, 13, 9, 3, 10, 17, 23, 0, 2, 10, 24, 23, 25, 0, 15, 30, 37, 0, 5, 0, 42, 36, 19, 7, 35, 37, 40, 16, 10, 0, 54, 43, 24, 3, 25, 47, 73, 7, 2, 20, 67, 53, 50, 0, 45, 60, 60, 0, 17, 0, 64, 73, 42, 13, 60, 67, 87, 26, 9, 0, 115, 73 ]
[ "nonn" ]
A031128
[ 6, 18, 46, 96, 188, 338, 588, 974, 1575, 2471, 3803, 5726, 8497, 12399, 17873, 25432, 35817, 49907, 68938, 94377, 128233, 172916, 231629, 308239, 407803, 536411, 701909, 913772, 1184021, 1527164, 1961431, 2508761, 3196472 ]
[ "nonn" ]
A127433
[ 1, 1, 2, 3, 2, 5, 4, 6, 4, 8, 5, 9, 7, 8, 8, 12, 9, 12, 9, 12, 13, 13, 14, 14, 14, 15, 17, 18, 13, 19, 18, 20, 21, 20, 22, 21, 22, 23, 20, 25, 22, 27, 23, 25, 26, 29, 29, 33, 27, 33, 29, 37, 32, 33, 33, 36, 33, 40, 34, 37, 37, 40, 37, 42, 38, 40, 41, 45, 37, 47, 42, 46, 45, 48, 46 ]
[ "nonn" ]
A210649
[ 9, 8, 2, 9, 7, 3, 0, 9, 9, 6, 8, 3, 9, 0, 1, 7, 7, 8, 2, 8, 1, 9, 4, 8, 8, 4, 4, 8, 5, 5, 1, 9, 8, 7, 1, 6, 0, 9, 8, 7, 2, 2, 8, 7, 5, 0, 6, 5, 6, 3, 2, 8, 7, 5, 9, 9, 7, 3, 8, 0, 4, 5, 9, 2, 0, 3, 9, 0, 7, 8, 5, 2, 5, 5, 2, 2, 4, 4, 2, 1, 7, 4, 2, 9, 6, 8, 4 ]
[ "nonn", "cons" ]
A223261
[ 3125, 1856465, 1158447605, 732779276465, 465517850602985, 296154779530302000, 188499365751451980000, 1.1999737943968941e+23, 7.639371510335792e+25, 4.863530560393012e+28 ]
[ "nonn" ]
A348182
[ 1, 2, 3, 3, 4, 4, 4, 4, 4, 4, 5, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 5, 6, 5, 5, 6, 5, 5, 6, 6, 6, 6, 6, 5, 6, 6, 6, 6, 6, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 6, 6, 6, 6, 6, 7, 6, 6, 6, 6, 6, 7, 6, 6, 6, 6, 6, 7, 6, 6, 7, 6, 6, 6, 6, 6, 6, 7, 6, 6, 6, 6, 6, 6, 6, 7, 6, 6, 6, 7, 6, 7, 6 ]
[ "nonn" ]
A061570
[ 0, 1, 8, 11, 14, 17, 20, 23, 26, 29, 32, 35, 38, 41, 44, 47, 50, 53, 56, 59, 62, 65, 68, 71, 74, 77, 80, 83, 86, 89, 92, 95, 98, 101, 104, 107, 110, 113, 116, 119, 122, 125, 128, 131, 134, 137, 140, 143, 146, 149, 152, 155, 158, 161, 164, 167, 170, 173, 176, 179 ]
[ "easy", "nonn" ]
A218496
[ 1, 5, 33, 281, 2993, 38705, 592489, 10516441, 212841889, 4845154913, 122664558905, 3421333467689, 104297273041969, 3451364116327249, 123251578626936850, 4725537745859376000, 193647372258547920000, 8.447809104669815e+21, 3.909389554290737e+23 ]
[ "nonn" ]
A244305
[ 1, 0, 3, 10, 119, 791, 8823, 87515, 1042823, 12448912, 166443706, 2246438833, 32782857721, 488717384754, 7695520330054, 124248088106249, 2091672883631855, 36107381616662300, 644987804706582800, 11799406380611543000, 222235188242044700000, 4.2801602507514844e+21 ]
[ "nonn" ]
A184650
[ 212898, 11826498, 657272274, 36516002466, 2028771948738, 112716440618754, 6262392708237282, 347931154681020160, 19330646430657483000, 1.073988006377145e+21, 5.966951182670728e+22 ]
[ "nonn" ]
A327896
[ 9, 14, 19, 23, 27, 31, 35, 39, 43, 47, 51, 54, 58, 62, 65, 69, 73, 76, 80, 83, 87, 90, 94, 97, 101, 104, 108, 111, 115, 118, 122, 125, 129, 132, 135, 139, 142, 146, 149, 152, 156, 159, 163, 166, 169, 173, 176, 179, 183, 186, 189, 193, 196, 199, 203, 206, 209, 213 ]
[ "nonn" ]
A167719
[ 1, 49, 289, 441, 729, 1521, 1681, 1849, 2209, 3481, 3721, 3969, 5329, 6889, 7569, 8281, 8649, 9409, 9801, 11449, 13689, 14641, 17161, 21609, 25281, 29241, 29929, 31329, 36481, 39601, 47961, 61009, 67081, 68121, 69169, 73441, 88209, 97969 ]
[ "base", "nonn" ]
A232412
[ 334521, 366033741, 406420576301, 467364164103927, 536668354513420350, 615510832230066700000, 7.061407254625847e+23, 8.10131457099926e+26, 9.294237157952018e+29 ]
[ "nonn" ]
A287238
[ 118315669766, 130863307526, 181448867234, 184661404346, 184881064994, 185180602238, 186803095538, 187013065238, 187127594162, 187516992482, 187889460398, 188332874498, 188587837538, 188750086706, 189131019338, 189322730354, 189374121386, 189621107138 ]
[ "fini", "full", "nonn" ]
A022802
[ 4, 6, 12, 17, 26, 38, 57, 88, 136, 213, 337, 537, 860, 1383, 2227, 3592, 5800, 9372, 15151, 24501, 39629, 64106, 103710, 167791, 271474, 439236, 710680, 1149885, 1860533, 3010385, 4870884, 7881234, 12752082, 20633279, 33385323, 54018563, 87403846 ]
[ "nonn" ]
A147504
[ 1, 1, 1, 1, 1, 5, 21, 83, 317, 1047, 4695, 28979, 194029, 1669287, 18050319 ]
[ "nonn" ]
A119184
[ 3, 6, 36, 66, 666, 333336, 3664664466, 66336663646, 3343646334464646, 334446636363634400, 346644344666643460, 3.644434346644436e+21, 4.4466636633334366e+21, 6.643334464463644e+23, 4.366333433633663e+26, 6.336363664446634e+27 ]
[ "nonn", "base" ]
A352866
[ 1, 1, 2, 4, 1, 2, 4, 6, 8, 11, 1, 2, 4, 6, 8, 10, 13, 16, 20, 24, 1, 2, 4, 6, 8, 10, 12, 15, 18, 22, 27, 32, 37, 43, 50, 1, 2, 4, 6, 8, 10, 12, 14, 17, 20, 24, 29, 34, 39, 44, 50, 57, 62, 68, 74, 80, 1, 2, 4, 6, 8, 10, 12, 14, 16, 19, 22, 26, 31, 36, 41, 46, 51, 57, 64, 71, 79, 88, 98, 108, 118, 129, 141, 154 ]
[ "nonn", "tabf" ]
A289216
[ 1, 11, 142, 2086, 34184, 616120, 12083920, 255749840, 5801633920, 140276126080, 3598075308800, 97512721964800, 2782552712473600, 83347512973644800, 2613606571616819000, 85594543750221560000, 2.9213148151453e+21, 1.0370433385119117e+23 ]
[ "nonn" ]
A087628
[ 1, 2, 2, 2, 10, 22, 22, 86, 170, 170, 682, 1366, 1366, 5462, 10922, 10922, 43690, 87382, 87382, 349526, 699050, 699050, 2796202, 5592406, 5592406, 22369622, 44739242, 44739242, 178956970, 357913942, 357913942, 1431655766, 2863311530 ]
[ "easy", "nonn" ]
A270695
[ 0, -1, 9, -26, 58, -107, 179, -276, 404, -565, 765, -1006, 1294, -1631, 2023, -2472, 2984, -3561, 4209, -4930, 5730, -6611, 7579, -8636, 9788, -11037, 12389, -13846, 15414, -17095, 18895, -20816, 22864, -25041, 27353, -29802, 32394, -35131, 38019 ]
[ "easy", "sign", "changed" ]
A172186
[ 1, 2, 5, 6, 10, 14, 21, 29, 30, 33, 34, 38, 41, 42, 46, 57, 61, 65, 66, 69, 70, 77, 78, 82, 86, 93, 101, 102, 105, 106, 109, 110, 113, 114, 118, 129, 133, 138, 141, 142, 145, 154, 158, 165, 173, 177, 178, 182, 185, 186, 190, 194, 201, 205, 209, 210, 213, 214, 217, 218 ]
[ "nonn" ]
A342945
[ 1, 2, 11, 21, 33, 111, 211, 331, 403, 1065, 1111, 1200, 2065, 2111, 2200, 3050, 3265, 3311, 4031, 4122, 4130, 4543, 5143, 10651, 11111, 11650, 12001, 12010, 12100, 13000, 15330, 20651, 21111, 21650, 22001, 22010, 22100, 23000, 25330, 30200, 30501, 30510, 31500 ]
[ "nonn", "base" ]
A236044
[ 2, 5, 11, 47, 89, 107, 131, 191, 197, 239, 347, 641, 701, 839, 941, 977, 1049, 1061, 1289, 1709, 1847, 1871, 1949, 1979, 2129, 2789, 2897, 3371, 3557, 3719, 3761, 3917, 4001, 4091, 4211, 4289, 4337, 4397, 4547, 4751 ]
[ "nonn" ]
A083478
[ 1, 1, 1, 1, 1, 1, 1, 1, 6, 10, 5, 7, 8, 2, 9, 3, 4, 6, 100, 10, 5, 4, 3, 2, 2, 2, 2, 2, 50, 50, 5, 4, 3, 2, 2, 2, 2, 2, 40, 40, 40, 7, 797, 2, 2, 2, 2, 2, 25, 30, 25, 420, 8, 2, 2, 2, 2, 2, 20, 20, 20, 20, 20, 2, 32, 117, 24, 28, 20, 20, 20, 20, 20, 89, 9, 52, 1870, 150, 20, 20, 20, 20, 20, 85 ]
[ "base", "nonn" ]
A012512
[ 0, 0, 2, -3, 12, -40, 430, -3591, 37464, -373752, 4507738, -58823875, 870967460, -13719012528, 234072634822, -4250060142615, 82733999849648, -1710175098180496, 37504812533836720, -867602777991744500 ]
[ "sign" ]
A036812
[ 1, 0, 1, 1, 1, 1, 3, 2, 4, 5, 6, 9, 11, 12, 19, 22, 30, 34, 44, 54, 69, 85, 103, 122, 155, 184, 227, 271, 325, 388, 473, 557, 674, 788, 939, 1113, 1319, 1554, 1830, 2137, 2523, 2943, 3467, 4020, 4688, 5454, 6350, 7376, 8557, 9860, 11427, 13185, 15250, 17534 ]
[ "nonn" ]
A276065
[ 0, 0, 0, 0, 0, 0, 2, 2, 4, 4, 6, 8, 16, 20, 34, 40, 64, 80, 130, 164, 256, 320, 490, 620, 944, 1200, 1800, 2290, 3400, 4344, 6406, 8206, 12008, 15408, 22404, 28810, 41672, 53680, 77258, 99662, 142808, 184480, 263320, 340578, 484392, 627200, 889160, 1152480 ]
[ "nonn", "easy" ]
A127204
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 21, 32, 41, 53, 62, 74, 81, 95, 113, 216, 322, 417, 534, 628, 741, 819, 955, 1131, 2161, 3223, 4172, 5341, 6286, 7413, 8192, 9552, 11314, 21611, 32237, 41725, 53413, 62864, 74136, 81922, 95528, 113147, 216114, 322371, 417258 ]
[ "base", "nonn" ]
A316539
[ 1, 4, 26, 136, 4219, 114514, 5074646, 681913008, 140688693646, 48442426003864, 36951311160860210 ]
[ "nonn" ]
A134123
[ 28229, 73189, 86629, 105769, 106543, 113843, 137029, 156371, 157579, 163259, 166099, 168803, 172441, 177043, 177691, 179849, 180569, 183713, 203713, 204251, 206651, 220973, 222199, 226943, 229849, 233021, 234383, 240209, 242009, 260269 ]
[ "nonn" ]
A346829
[ 21147, 115975, 386699, 1029271, 2372061, 4949969, 9600364, 17590607, 30783302, 51867573, 84653400, 134445843, 208534572, 316803912, 472510394, 693262224, 1002224767, 1429615467, 2014562139, 2807357978, 3872227935, 5290698101, 7165662241, 9626288297, 12833928706 ]
[ "nonn" ]
A193354
[ 1, -32, 8, 480, -256, 28, -4480, 3840, -896, 64, 29152, -35840, 13440, -2048, 126, -140736, 233216, -125440, 30720, -4032, 224, 525952, -1125888, 816256, -286720, 60480, -7168, 344, -1580800, 4207616, -3940608, 1865728, -564480, 107520, -11008, 512 ]
[ "sign", "tabl" ]
A099961
[ 1, 1, 1, 1, 1, 2, 2, 3, 3, 5, 5, 5, 10, 13, 13, 23, 28, 28, 51, 64, 64, 64, 128, 179, 207, 207, 386, 514, 578, 578, 1092, 1478, 1685, 1685, 1685, 3370, 4848, 5940, 6518, 6518, 12458, 17306, 20676, 22361, 22361, 43037, 60343, 72801, 79319, 79319, 79319 ]
[ "nonn", "tabf", "nice", "easy" ]
A223971
[ 46, 2116, 76092, 2558848, 84988435, 2809740785, 92756321858, 3060966419662, 100999995564503, 3332485315028073, 109953896394879300, 3627869207377692000, 119699463417292200000, 3.9494140240967945e+21, 1.3030860265473907e+23 ]
[ "nonn" ]
A272584
[ 3, 9, 27, -11, 71, -31, 131, -115, 239, -191, 347, -299, 463, -335, 563, -547, 799, -751, 1035, -987, 1279, -1135, 1483, -1435, 1791, -1647, 2035, -1891, 2239, -1839, 2323, -2307, 2815, -2767, 3307, -3259, 3807, -3663, 4267, -4219, 4831, -4687, 5331, -5187 ]
[ "sign", "easy" ]
A221768
[ 0, 0, 0, 0, 1, 0, 0, 3, 3, 0, 0, 8, 16, 8, 0, 0, 21, 92, 92, 21, 0, 0, 55, 536, 1042, 536, 55, 0, 0, 144, 3125, 12177, 12177, 3125, 144, 0, 0, 377, 18216, 141177, 296912, 141177, 18216, 377, 0, 0, 987, 106174, 1635606, 7115200, 7115200, 1635606, 106174, 987, 0, 0, 2584 ]
[ "nonn", "tabl" ]
A351576
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100 ]
[ "nonn", "base" ]
A192714
[ 2, 6, 19, 55, 140, 331, 732, 1533, 3055, 5857, 10824, 19386, 33743, 57293, 95044, 154445, 246197, 385697, 594416, 902641, 1351643, 1998191, 2918046, 4213843, 6019994, 8515367, 11930845, 16568416, 22815114, 31168260, 42253487, 56871045 ]
[ "nonn" ]
A083568
[ 1, 1, 2, 12, 286, 33592, 23178480, 108995910720, 3973186258569120 ]
[ "dead" ]
A371943
[ 0, 0, 0, 1, 2, 10, 28, 116, 388, 1588, 5960, 25168, 102856, 453608, 1985008, 9163360, 42486128, 205065136, 1000056928, 5035366208, 25689681760, 134588839648, 715328668736, 3889568161408, 21463055829568, 120839175460160, 690344333849728, 4015753752384256 ]
[ "nonn" ]
A161807
[ 3, 27, 111, 378, 1356, 4131, 10881, 29106, 73500, 167643, 382053, 849339, 1754061, 3605094, 7330311, 14094945, 26980563, 51481332, 93965784, 170910270, 311155296, 545970024, 955201653, 1676274750, 2849709768, 4831999623 ]
[ "nonn" ]
A057210
[ 1, 0, 1, 1, 3, 3, 10, 9, 23, 30, 66, 80, 162, 209, 374, 507, 835, 1113, 1778, 2344, 3532, 4670, 6796, 8825, 12501, 16091, 22142, 28232, 38016, 47868, 63416, 79023, 102684, 126973, 162793, 199128, 252082, 306061, 382627, 461020 ]
[ "nonn" ]
A039095
[ 0, 1, 3, 4, 5, 6, 8, 9, 10, 12, 13, 14, 15, 17, 25, 27, 28, 30, 31, 32, 33, 35, 36, 37, 39, 40, 41, 42, 44, 45, 46, 48, 49, 50, 51, 53, 54, 55, 57, 58, 59, 60, 62, 65, 72, 73, 75, 76, 77, 78, 80, 81, 82, 84, 85, 86, 87, 89, 90, 91, 93, 94, 95, 96, 98, 106, 108, 109, 111 ]
[ "nonn", "base", "easy" ]
A372373
[ 1, 1, 1, 10, 37, 91, 334, 1366, 4645, 15967, 59951, 220782, 792946, 2906554, 10770082, 39629440, 145966549, 540943231, 2006762563, 7443051014, 27661527427, 102980882455, 383639407570, 1430429881122, 5339465251426, 19947662875216, 74573064834646 ]
[ "nonn" ]
A201795
[ 1, 1, 3, 13, 80, 621, 5887, 65689, 844587, 12289825, 199702646, 3584177829, 70418168977, 1503204079573, 34644744039375, 857391850897201, 22677415997829788, 638386960029846900, 19057447729907765000, 601346850250707200000 ]
[ "nonn" ]
A152296
[ 1, 6, 113400, 32901422400, 67651716132000000, 6.087623798437574e+23, 1.7903325789347617e+31, 1.4151999219560876e+39, 2.6137552145247426e+47, 1.0151964494025663e+56, 7.639222623123645e+64 ]
[ "nonn" ]
A082997
[ 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 3, 3, 4, 5, 5, 5, 6, 6, 7, 8, 9, 9, 10, 10, 11, 11, 12, 12, 12, 12, 12, 13, 14, 15, 16, 16, 17, 18, 19, 19, 19, 19, 20, 21, 22, 22, 23, 23, 24, 25, 26, 26, 27, 28, 29, 30, 31, 31, 31, 31, 32, 33, 33, 34, 34, 34, 35, 36, 36, 36, 37, 37, 38, 39, 40, 41 ]
[ "nonn" ]
A154860
[ 1, 2, 3, 0, 4, 4, 8, 9, 2, 1, 3, 7, 8, 2, 7, 3, 9, 2, 8, 5, 4, 0, 1, 6, 9, 8, 9, 4, 3, 2, 8, 3, 3, 7, 0, 3, 0, 0, 0, 7, 5, 6, 7, 3, 7, 8, 4, 2, 5, 0, 4, 6, 3, 9, 7, 3, 8, 0, 3, 6, 8, 4, 8, 2, 3, 4, 4, 6, 9, 4, 0, 6, 2, 2, 5, 7, 1, 1, 8, 1, 8, 5, 7, 9, 5, 6, 8, 4, 6, 7, 0, 0, 9, 8, 4, 6, 5, 1, 3 ]
[ "nonn", "cons" ]
A245273
[ 0, 0, 6, 3, 5, 6, 4, 5, 5, 9, 0, 8, 5, 8, 4, 8, 5, 1, 2, 1, 0, 1, 0, 0, 0, 2, 6, 7, 2, 9, 9, 6, 0, 4, 3, 8, 1, 9, 8, 9, 9, 4, 9, 1, 0, 1, 6, 0, 9, 1, 9, 8, 8, 1, 1, 6, 9, 8, 6, 8, 2, 8, 0, 8, 5, 7, 7, 6, 0, 0, 7, 8, 3, 9, 8, 0, 8, 5, 3, 4, 2, 7, 6, 4, 8, 7, 0, 5, 6, 0, 3, 2, 8, 0, 8, 3, 9, 2, 4, 7, 2, 6, 6, 3, 7, 4, 2 ]
[ "nonn", "cons", "easy" ]
A371866
[ 3, 7, 17, 47, 2207, 9.741581346638145e+22 ]
[ "nonn" ]
A037991
[ 400, 800, 1200, 1600, 2000, 2400, 2401, 2800, 2802, 2803, 2804, 2805, 2806, 3201, 3601, 4001, 4401, 4801, 4802, 5202, 5600, 5601, 5603, 5604, 5605, 5606, 6002, 6402, 6802, 7202, 7203, 7603, 8003, 8400, 8401, 8402, 8404 ]
[ "nonn", "base" ]
A031119
[ 11, 18, 21, 26, 28, 63, 65, 103, 109, 125, 127, 147, 165, 176, 187, 215, 218, 244, 248, 249, 251, 288, 291, 296, 305, 319, 346, 353, 355, 361, 366, 370, 373, 390, 406, 411, 412, 417, 428, 443, 450, 456, 467, 470, 477, 489, 503 ]
[ "nonn" ]
A206457
[ 5, 216, 4048, 78050, 1679508, 40353460, 1073741632, 31381059366, 999999999700, 34522712143568, 1283918464548432, 51185893014090250, 2177953337809370600, 98526125335693360000, 4.722366482869645e+21, 2.3907243568515132e+23 ]
[ "nonn" ]
A260556
[ 41, 97, 193, 241, 401, 433, 601, 977, 1033, 1361, 1753, 2281, 2897, 3793, 4241, 4561, 5113, 6737, 6961, 7993, 10273, 11953, 12841, 13457, 17681, 22273, 22481, 26641, 27961, 32833, 37321, 42641, 49801, 49937, 54361, 57193, 58153, 63073, 63377, 76801, 94321 ]
[ "nonn" ]
A346206
[ 11, 21673, 27367, 32611, 33311, 41141, 48821, 82781, 171263, 211441, 243433, 323443, 343243, 449699, 632623, 663661, 727271, 772127, 847871, 882881, 944969, 1129699, 1192699, 1193939, 1262633, 1334341, 1342433, 1343423, 1361441, 1388641, 1399193, 1461883, 1613441 ]
[ "nonn", "base" ]
A274815
[ 201824, 441440, 477224, 538460, 633555, 667575, 705159, 708344, 775124, 796575, 801800, 840735, 846944, 850815, 994175, 1037475, 1068704, 1165724, 1210824, 1235168, 1241954, 1248884, 1259180, 1266264, 1283975, 1290860, 1316600, 1339974, 1386315, 1391775 ]
[ "nonn" ]
A226763
[ 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 16 ]
[ "nonn", "easy" ]
A325638
[ 6, 28, 456, 496, 6552, 8128, 30240, 31452, 32760, 429240, 2178540, 7505976, 23569920, 33550336, 45532800, 142990848, 1379454720 ]
[ "nonn", "more" ]
A143942
[ 4, 2, 8, 8, 4, 1, 12, 14, 8, 6, 4, 1, 16, 20, 12, 11, 8, 6, 4, 1, 20, 26, 16, 16, 12, 11, 8, 6, 4, 1, 24, 32, 20, 21, 16, 16, 12, 11, 8, 6, 4, 1, 28, 38, 24, 26, 20, 21, 16, 16, 12, 11, 8, 6, 4, 1, 32, 44, 28, 31, 24, 26, 20, 21, 16, 16, 12, 11, 8, 6, 4, 1, 36, 50, 32, 36, 28, 31, 24, 26 ]
[ "nonn", "tabf" ]
A062434
[ 1, 1, 2, 4, 7, 11, 17, 24, 32, 42, 55, 69, 86, 106, 128, 154, 182, 215, 250, 290, 334, 382, 434, 491, 554, 621, 694, 773, 857, 948, 1045, 1148, 1259, 1377, 1502, 1634, 1775, 1923, 2081, 2246, 2421, 2605, 2798, 3001, 3214, 3437, 3671, 3915, 4171 ]
[ "nonn", "easy" ]
A027431
[ 25, 1, 3, 1, 6, 3, 1, 1, 2, 1, 10, 3, 2, 1, 19, 3, 2, 1, 1, 3, 2, 3, 5, 3, 1, 1, 7, 1, 1, 1, 2, 1, 364, 11, 1, 84, 9, 34, 1, 7, 1, 63, 7, 1, 1, 4, 1, 5, 4, 7, 1, 1, 1, 5, 1, 4, 1, 5, 5, 9, 1, 21, 1, 9, 1, 1, 3, 2, 7, 1, 8, 5, 1, 7, 5, 2, 3, 1, 1, 1, 1, 1, 1, 1, 7, 8, 2, 2, 2, 1, 2, 1, 2, 6, 33 ]
[ "nonn", "cofr" ]
A380645
[ 1, 1, 2, 5, 15, 52, 201, 857, 4370, 34365, 478287, 9095996, 189526537, 4036216585, 87129122290, 2478683501397, 2450240534552191, 12482183328151728000, 6.563409287276127e+22, 3.4537081879664384e+26, 1.8174149528529123e+30 ]
[ "nonn" ]
A344669
[ 1, 2, 1092, 144, 507254400 ]
[ "nonn", "bref", "more" ]
A204914
[ 5, 21, 16, 45, 40, 24, 117, 112, 96, 72, 165, 160, 144, 120, 48, 285, 280, 264, 240, 168, 120, 357, 352, 336, 312, 240, 192, 72, 525, 520, 504, 480, 408, 360, 240, 168, 837, 832, 816, 792, 720, 672, 552, 480, 312, 957, 952, 936, 912, 840, 792, 672 ]
[ "nonn" ]
A275115
[ 2, 3, 7, 5, 29, 7, 11, 17, 13, 11, 47, 13, 17, 23, 19, 17, 53, 19, 23, 29, 37, 23, 59, 73, 29, 107, 31, 29, 173, 31, 47, 41, 37, 43, 71, 37, 41, 47, 43, 41, 173, 43, 47, 53, 61, 47, 83, 73, 53, 59, 67, 53, 89, 79, 59, 137, 61, 59, 317, 61, 97, 71, 67, 73, 101, 67, 71, 149, 73, 71 ]
[ "nonn" ]
A215640
[ 3, 12, 28, 168, 360, 1170, 9360, 19344, 232128, 3249792, 6604416, 20321280, 104993280, 1889879040, 37797580800, 907141939200, 1828682956800, 54860488704000, 1755535638528000, 12508191424512000, 37837279059148800, 1437816604247654400, 60388297378401485000 ]
[ "nonn" ]
A151932
[ 8, 384, 9216, 2949120, 58982400, 25480396800, 1664719257600, 7457942274048000, 414235422307123200, 165694168922849280000, 2.6731992586219684e+22, 1.5397627729662538e+26, 1.0408796345251876e+28, 2.448148900403241e+31, 1.4688893402419447e+34 ]
[ "nonn", "easy" ]
A023249
[ 3, 7, 11, 17, 19, 47, 67, 109, 149, 151, 199, 227, 233, 347, 353, 359, 397, 431, 457, 487, 563, 571, 577, 607, 709, 809, 919, 947, 997, 1013, 1033, 1069, 1103, 1117, 1151, 1187, 1279, 1361, 1367, 1451, 1601, 1607, 1697, 1699, 1801, 1811, 1823, 1831, 1871, 1913 ]
[ "nonn" ]
A281900
[ 1, 3, 6, 7, 15, 16, 34, 240, 241, 317, 502, 503, 504, 505, 1077, 1178, 1179, 1806, 4866, 4901, 4902, 4946, 4947, 8195, 8196, 8197, 8198, 8199, 8200, 8201, 8202, 8203, 8204, 45393, 45485, 45486, 96358, 96359, 96360, 96361, 96362, 96363, 96364, 96365, 96366 ]
[ "nonn" ]
A295507
[ 13, 175, 490, 85, 308, 13475, 3179, 9295, 19760, 60775, 55315, 225420, 203665, 9724, 512050, 568854, 207740, 252700, 2684396, 8695050, 1221025, 140875, 3121937, 311220, 21390460, 12289004, 17331908, 20074032, 44144100, 18055947, 21118608, 21017325, 40245205, 4418232 ]
[ "nonn" ]
A116516
[ 1, 2, 5, 4, 1, 9, 6, 1, 0, 1, 5, 7, 8, 0, 1, 1, 9, 3, 6, 2, 7, 7, 6, 7, 9, 5, 5, 4, 9, 1, 4, 2, 1, 3, 4, 2, 3, 7, 7, 9, 8, 6, 9, 2, 1, 8, 0, 4, 2, 6, 2, 2, 1, 9, 5, 8, 3, 2, 7, 2, 2, 5, 5, 4, 6, 0, 8, 8, 6, 4, 6, 9, 9, 4, 2, 8, 7, 5, 1, 4, 4, 7, 5, 1, 3, 2, 3 ]
[ "nonn", "cons" ]
A237410
[ 87164, 1260486, 18401364, 330330878, 6045609040, 101410470742, 1668740442760, 28739211200900, 500884807969628, 8543128692901112, 144626632332405100, 2476006354146555400, 42573962725861200000, 727911488082492400000 ]
[ "nonn" ]
A283066
[ 1, 0, 100, 0, 11100, 111000, 1110100, 11100000, 111011100, 1111011000, 11110010100, 111100000000, 1110011111100, 11100011111000, 111010111110100, 1110101111100000, 11100011111011100, 111010111111011000, 1110100111110010100, 11101000111100000000 ]
[ "nonn", "easy" ]
A012603
[ 1, -12, -3248, -19157952, -518516045568, -41950819968248830, -7.989124180734318e+21, -3.0746273276209503e+27, -2.150601092109458e+33 ]
[ "sign" ]
A145034
[ 1, 1, 1, 1, 2, 1, 1, 3, 4, 2, 1, 4, 9, 12, 5, 1, 5, 16, 36, 40, 14, 1, 6, 25, 80, 150, 140, 42, 1, 7, 36, 150, 400, 630, 504, 132, 1, 8, 49, 252, 875, 1960, 2646, 1848, 429, 1, 9, 64, 392, 1680, 4900, 9408, 11088, 6864, 1430, 1, 10, 81, 576, 2940, 10584, 26460, 44352, 46332, 25740, 4862 ]
[ "nonn", "tabl" ]
A090024
[ 0, 1, 45, 571, 5841, 55651, 515025, 4702531, 42649281, 385447171, 3476958705, 31332052291, 282184860321, 2540643522691, 22870684139985, 205860600134851, 1852867557848961, 16676418630942212, 150090820212050880 ]
[ "easy", "nonn" ]
A192407
[ 1, 4, 31, 291, 3092, 35839, 441925, 5721008, 77009425, 1071034612, 15319883964, 224628789200, 3368096726910, 51552652046550, 804490751228163, 12788591015038780, 206977224029107900, 3409582505289727500, 57165456138722300000 ]
[ "nonn" ]
A075385
[ 1, 4, 9, 20, 30, 54, 56, 104, 126, 160, 154, 264, 234, 364, 390, 480, 374, 630, 475, 780, 819, 946, 713, 1200, 1100, 1326, 1350, 1596, 1160, 1950, 1333, 2144, 2046, 2312, 2380, 2844, 1961, 3002, 3081, 3600, 2378, 3948, 2666, 4136, 4275, 4370, 3149, 5280 ]
[ "nonn" ]
A058591
[ 0, 1, 2, 5, 6, 8, 11, 12, 14, 17, 26, 47, 59, 65, 83, 92, 96, 110, 113, 186, 527, 834, 1274, 5124, 5750, 7616, 11328, 54287, 57186 ]
[ "nonn", "more" ]
A137939
[ 0, 0, 54, 24, 180, 216, 546, 336, 648, 720, 990, 936, 1404, 2352, 1890, 1824, 2448, 2592, 3078, 3720, 4284, 3960, 4554, 4464, 5400, 5616, 6318, 7896, 7308, 7560, 8370, 8256, 9504, 9792, 11550, 10584, 11988, 12312, 13338, 14640, 14760, 17640, 16254, 16104, 17820, 18216, 19458, 19296, 22344, 21600 ]
[ "nonn" ]
A390118
[ 3, 4, 1, 2, 24, 4, 24, 1, 32, 12, 48, 2, 216, 12, 8, 3, 264, 16, 72, 6, 8, 24, 96, 1, 408, 108, 104, 6, 120, 4, 120, 9, 16, 132, 24, 8, 144, 36, 72, 3, 168, 4, 696, 12, 8, 48, 1680, 1, 192, 204, 88, 54, 216, 52, 144, 3, 24, 60, 2112, 2, 2208, 60, 80, 15, 96, 8, 1080, 66, 32, 12 ]
[ "nonn" ]
A005900
[ 0, 1, 6, 19, 44, 85, 146, 231, 344, 489, 670, 891, 1156, 1469, 1834, 2255, 2736, 3281, 3894, 4579, 5340, 6181, 7106, 8119, 9224, 10425, 11726, 13131, 14644, 16269, 18010, 19871, 21856, 23969, 26214, 28595, 31116, 33781, 36594, 39559, 42680, 45961, 49406, 53019 ]
[ "nonn", "easy" ]
A172761
[ 924, 6152037276, 127676780106968400, 3.956256528501607e+24, 1.6478296395156872e+32, 8.357144767918621e+39 ]
[ "nonn" ]
A226292
[ 2, 6, 13, 22, 34, 48, 65, 84, 106, 130, 157, 186, 218, 252, 289, 328, 370, 414, 461, 510, 562, 616, 673, 732, 794, 858, 925, 994, 1066, 1140, 1217, 1296, 1378, 1462, 1549, 1638, 1730, 1824, 1921, 2020, 2122, 2226, 2333, 2442, 2554, 2668, 2785, 2904, 3026, 3150 ]
[ "nonn", "easy" ]
A140298
[ 1, 2, 3, 4, 5, 9, 13, 14, 27, 40, 41, 81, 121, 122, 243, 364, 365, 729, 1093, 1094, 2187, 3280, 3281, 6561, 9841, 9842, 19683, 29524, 29525, 59049, 88573, 88574, 177147, 265720, 265721, 531441, 797161, 797162, 1594323, 2391484, 2391485, 4782969, 7174453, 7174454 ]
[ "nonn", "easy" ]
A320264
[ 1, 1, 2, 3, 11, 9, 4, 38, 84, 52, 7, 125, 523, 766, 365, 10, 364, 2676, 7096, 7775, 3006, 16, 1041, 12435, 52955, 100455, 87261, 28357, 22, 2838, 54034, 348696, 1020805, 1497038, 1074766, 301064, 32, 7645, 225417, 2120284, 8995801, 19823964, 23605043, 14423564, 3549177 ]
[ "nonn", "tabl" ]
A328522
[ 1, 2, 6, 12, 60, 180, 1260, 2520, 27720, 83160, 1081080, 3603600, 61261200, 698377680, 3491888400, 80313433200, 240940299600, 1686582097200, 48910880818800, 1516237305382800, 3032474610765600, 112201560598327200, 3066842656354277000, 131874234223233910000, 659371171116169600000, 3.0990445042459967e+22 ]
[ "nonn" ]
A156428
[ 1, 921184, 52745205240, 367381371180384, 514918876680042300, 195842622547532780000 ]
[ "nonn" ]