id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A011014
[ 2, 0, 5, 9, 7, 6, 7, 1, 4, 3, 9, 0, 7, 1, 1, 7, 7, 5, 5, 8, 3, 0, 2, 7, 7, 2, 5, 5, 2, 0, 1, 0, 1, 0, 7, 8, 0, 1, 0, 2, 6, 9, 2, 7, 4, 4, 1, 5, 5, 4, 0, 4, 0, 7, 8, 5, 9, 7, 2, 0, 1, 4, 4, 6, 6, 2, 3, 2, 5, 5, 0, 5, 0, 0, 2, 3, 7, 4, 9, 8, 5, 6, 3, 7, 6, 9, 2, 1, 0, 5, 1, 3, 7, 1, 3, 7, 2, 5, 2 ]
[ "nonn", "cons", "easy" ]
A086971
[ 0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 2, 0, 1, 1, 1, 0, 2, 0, 2, 1, 1, 0, 2, 1, 1, 1, 2, 0, 3, 0, 1, 1, 1, 1, 3, 0, 1, 1, 2, 0, 3, 0, 2, 2, 1, 0, 2, 1, 2, 1, 2, 0, 2, 1, 2, 1, 1, 0, 4, 0, 1, 2, 1, 1, 3, 0, 2, 1, 3, 0, 3, 0, 1, 2, 2, 1, 3, 0, 2, 1, 1, 0, 4, 1, 1, 1, 2, 0, 4, 1, 2, 1, 1, 1, 2, 0, 2, 2, 3, 0, 3 ]
[ "nonn" ]
A280595
[ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 12, 14, 21, 23, 25, 32, 36, 41, 45, 47, 52, 54, 56, 58, 63, 65, 69, 70, 74, 78, 80, 85, 87, 89, 96, 98, 123, 125, 145, 147, 214, 236, 254, 256, 258, 321, 325, 365, 369, 412, 452, 456, 458, 470, 478, 521, 523, 541, 547, 563, 569, 580, 587, 589, 632, 652, 654, 658 ]
[ "nonn", "base", "fini", "full" ]
A238078
[ 378708, 10449784, 242829762, 6222330452, 182752988334, 5032066269920, 146517793924666, 4129457221662176, 123794073907866620, 3439338548069808600, 100765370412350780000, 2.8450502071073233e+21, 8.521459001402863e+22 ]
[ "nonn" ]
A215967
[ 165, 330, 429, 495, 660, 741, 805, 825, 858, 990, 1045, 1155, 1173, 1235, 1245, 1287, 1309, 1320, 1482, 1485, 1610, 1645, 1650, 1716, 1815, 1955, 1980, 2090, 2145, 2223, 2261, 2301, 2310, 2346, 2365, 2470, 2475, 2490, 2574, 2618, 2635, 2640, 2765, 2795, 2821 ]
[ "nonn" ]
A222197
[ 6, 82, 850, 63674, 2861964, 1087362018, 218915964618, 404126474166012, 374905251599546000, 3.300767481388101e+21, 1.4292173292228195e+25, 5.953704855682707e+29, 1.2097705655943392e+34, 2.3760028645973573e+39, 2.270921838046296e+44 ]
[ "nonn" ]
A101723
[ 0, 1, 3, 6, 9, 11, 19, 23, 29, 41, 61, 187, 303, 339, 714, 803, 1039, 1886, 2078, 2119, 2259, 2422, 3318, 5597, 6071, 22047, 25712, 28643, 43352 ]
[ "nonn", "hard", "more" ]
A283378
[ 1, 1, 1, 7, 3, 25, 7, 115, 37, 445, 25, 1991, 923, 6497, 1951, 29487, 9319, 113931, 6649, 508147, 237413, 1658389, 513269, 7577189, 2428301, 29220977, 1626031, 130492199, 59943611, 427469713, 129415479, 1929418051, 620672989, 7474086825, 431520063 ]
[ "nonn", "easy" ]
A377411
[ 1, 2, 24, 550, 19094, 895148, 53013508, 3799302288, 319804780896, 30933514927968, 3381310375415952, 412231069711808400, 55460578942028276000, 8.162361371407306e+21, 1.3045193422833976e+24, 2.2499976841981473e+26, 4.165646073229087e+28 ]
[ "nonn" ]
A350428
[ 1, 9, 78, 657, 5448, 49869, 520416, 5901138, 70092000, 902850273, 12416814432, 183763314090, 2854581512832 ]
[ "nonn", "more" ]
A118875
[ -213720, 114432, -548352, 892800, -1774080, -7289856, 10105344, -79557120, -97790976, 171740160, 147556224, 56531520, -380053440, 122206464, -164292480, -958000320, 394761600, 189907200, 1139760000, -3023127360, -1495428480, -4260988800, -14501393280, 7022695680 ]
[ "easy", "sign" ]
A006940
[ 1, 11, 121, 1001, 11011, 121121, 1002001, 11022011, 121212121, 1000000001, 11000000011, 121000000121, 1001000001001, 11011000011011, 121121000121121, 1002001001002001, 11022011011022012, 121212121121212130, 1000000002000000000, 11000000022000000000, 121000000212000000000 ]
[ "nonn" ]
A225449
[ 1, 7, 8, 2, 5, 0, 2, 0, 6, 4, 6, 2, 8, 9, 1, 4, 7, 0, 8, 9, 4, 4, 3, 5, 3, 9, 4, 9, 6, 3, 5, 2, 5, 7, 2, 3, 9, 4, 9, 4, 8, 8, 1, 0, 0, 4, 8, 4, 1, 4, 8, 5, 4, 9, 9, 2, 2, 7, 1, 9, 2, 2, 2, 5, 1, 6, 3, 7, 2, 2, 0, 0, 8, 9, 5, 2, 9, 0, 9, 6, 9, 4, 8, 8, 8, 2, 4, 3, 6, 6, 7, 9, 8, 8, 2, 0, 4, 3, 9, 0 ]
[ "nonn", "base" ]
A009578
[ 0, 1, -3, 9, -34, 165, -981, 6853, -54804, 493209, -4932055, 54252561, -651030678, 8463398749, -118487582409, 1777313736045, -28437019776616, 483429336202353, -8701728051642219, 165332832981202020, -3306656659624040000 ]
[ "sign", "easy" ]
A078180
[ 1, 2, 9, 10, 13, 16, 17, 22, 25, 26, 29, 34, 36, 37, 41, 43, 50, 55, 56, 57, 58, 61, 65, 70, 77, 78, 82, 85, 89, 91, 93, 94, 96, 97, 99, 105, 106, 116, 121, 122, 125, 127, 129, 133, 134, 136, 137, 139, 142, 145, 148, 149, 153, 156, 160, 161, 162, 163, 173 ]
[ "nice", "nonn" ]
A168179
[ 0, 1, 68, 1107, 8224, 39125, 140076, 411943, 1048832, 2391849, 5000500, 9744251, 17916768, 31375357, 52708124, 85431375, 134219776, 205171793, 306112932, 446939299, 640004000, 900548901, 1247184268, 1702418807, 2293242624, 3051765625, 4015913876, 5230186443, 6746475232 ]
[ "nonn", "easy" ]
A083856
[ 0, 0, 1, 0, 1, 1, 0, 1, 1, 1, 0, 1, 1, 2, 1, 0, 1, 1, 3, 3, 1, 0, 1, 1, 4, 5, 5, 1, 0, 1, 1, 5, 7, 11, 8, 1, 0, 1, 1, 6, 9, 19, 21, 13, 1, 0, 1, 1, 7, 11, 29, 40, 43, 21, 1, 0, 1, 1, 8, 13, 41, 65, 97, 85, 34, 1, 0, 1, 1, 9, 15, 55, 96, 181, 217, 171, 55, 1 ]
[ "nonn", "tabl", "easy" ]
A197799
[ 1, 5, 102, 7185, 1944779, 2076384112, 8356101105886, 127186506081050670 ]
[ "nonn" ]
A325245
[ 0, 0, 0, 1, 1, 2, 4, 4, 6, 8, 11, 11, 19, 17, 25, 29, 37, 37, 56, 53, 75, 80, 99, 103, 145, 143, 181, 199, 247, 255, 336, 339, 426, 459, 548, 590, 738, 759, 916, 999, 1192, 1259, 1529, 1609, 1915, 2083, 2406, 2589, 3085, 3267, 3809, 4134, 4763, 5119, 5964 ]
[ "nonn" ]
A208949
[ 38, 988, 7974, 37044, 125322, 344456, 817362, 1738516, 3397474, 6205668, 10726862, 17710724, 28129694, 43219580, 64523202, 93937312, 133763354, 186761160, 256205942, 345949192, 460482450, 605004348, 785491674, 1008773192, 1282606758 ]
[ "nonn" ]
A185151
[ 1, 1, 2, 4, -6, -232, -3116, -34652, -331680, -2206128, 9303480, 812562672, 22705836048, 484588970448, 8345456974368, 94936573618176, -635010052507872, -88746666011316480, -3781485264943422500 ]
[ "sign" ]
A159977
[ 1, 1, 0, 0, 0, 3, 0, 2, 3, 4, 0, 5, 0, 2, 3, 4, 0, 7, 20, 14, 3, 2, 0, 13, 4, 10, 11, 16, 0, 23, 4, 4, 25, 10, 14, 35, 6, 24, 3, 2, 6, 7, 0, 20, 9, 48, 0, 5, 28, 18, 23, 14, 14, 11, 16, 10, 21, 4, 62, 13, 38, 12, 7, 16, 12, 19, 36, 28, 143, 32, 58, 29, 96, 100, 33, 2, 30, 27, 12, 62, 25, 46, 0 ]
[ "easy", "nonn" ]
A318575
[ 32918611718880, 284239560530875680 ]
[ "bref", "nonn", "hard", "more" ]
A253839
[ 263476, 308576, 654021, 1139506, 237202, 295098, 225776, 103499, 121541, 121166, 116836, 127015, 140669, 134619, 147544, 162628, 159254, 167587, 193122, 178905, 199064, 221897, 209560, 227375, 255465, 238491, 271541, 287915, 281716, 308658 ]
[ "nonn" ]
A136438
[ 0, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 1, 2, 2, 0, 0, 1, 3, 4, 4, 0, 0, 1, 4, 7, 8, 7, 0, 0, 1, 5, 11, 15, 15, 13, 0, 0, 1, 6, 16, 26, 30, 28, 24, 0, 0, 1, 7, 22, 42, 56, 58, 52, 44, 0, 0, 1, 8, 29, 64, 98, 114, 110, 96, 81, 0, 0, 1, 9, 37, 93, 162, 212, 224, 206, 177, 149 ]
[ "easy", "nonn", "tabl" ]
A217666
[ 1, 1, 2, 9, 43, 198, 903, 4121, 18840, 86255, 395397, 1814662, 8337729, 38350063, 176574336, 813785593, 3753980313, 17332179596, 80089232683, 370370470791, 1714045215632, 7938075605697, 36787429315319, 170592514889814, 791557946825363, 3674974608196665 ]
[ "nonn" ]
A040753
[ 27, 1, 17, 1, 1, 1, 5, 1, 1, 4, 1, 1, 5, 1, 1, 1, 17, 1, 54, 1, 17, 1, 1, 1, 5, 1, 1, 4, 1, 1, 5, 1, 1, 1, 17, 1, 54, 1, 17, 1, 1, 1, 5, 1, 1, 4, 1, 1, 5, 1, 1, 1, 17, 1, 54, 1, 17, 1, 1, 1, 5, 1, 1, 4, 1, 1, 5, 1, 1, 1, 17, 1, 54, 1, 17, 1, 1, 1, 5, 1, 1, 4, 1, 1, 5, 1, 1 ]
[ "nonn", "cofr", "easy" ]
A060906
[ 1, 1, 3, 12, 73, 556, 4737, 44122, 453441, 5186664, 65671201, 906052654, 13418086497, 211472682604, 3535616946513, 62621439810066, 1172370604136833, 23118679430573010, 478329265510033500, 10349724555927680000, 233633352312272620000, 5.492655756487133e+21 ]
[ "nonn" ]
A355819
[ 1, -1, -1, 0, -1, 1, -1, -1, 0, 1, -1, 0, -1, 1, 1, 2, -1, 0, -1, 0, 1, 1, -1, 1, 0, 1, -2, 0, -1, -1, -1, -8, 1, 1, 1, 0, -1, 1, 1, 1, -1, -1, -1, 0, 0, 1, -1, -2, 0, 0, 1, 0, -1, 2, 1, 1, 1, 1, -1, 0, -1, 1, 0, 12, 1, -1, -1, 0, 1, -1, -1, 0, -1, 1, 0, 0, 1, -1, -1, -2, 4, 1, -1, 0, 1, 1, 1, 1, -1, 0, 1, 0, 1, 1, 1, 8 ]
[ "sign", "mult" ]
A297221
[ 6, 33, 182, 997, 5570, 30946, 171851, 955316, 5308160, 29497088, 163916530, 910869797, 5061672943, 28127490455, 156303166524, 868569845751, 4826603668246, 26821221189069, 149044329620412, 828232684722634 ]
[ "nonn" ]
A299030
[ 6, 8, 16, 256, 3.402823669209385e+38 ]
[ "nonn", "more" ]
A212404
[ 8, 33, 132, 527, 2104, 8402, 33560, 134075, 535728, 2140910, 8556568, 34201078, 136713872, 546528612, 2184925808, 8735357267, 34925461088, 139642914902, 558353310488, 2232601256162, 8927375430608, 35698163696252, 142750104755408 ]
[ "nonn" ]
A296011
[ 42, 897, 1052, 2107, 2242, 2457, 2632, 2912, 3887, 4362, 9347, 10367, 12587, 13132, 13797, 14072, 14897, 15737, 15877, 17452, 19292, 20092, 20167, 25677, 27042, 27307, 29967, 30842, 31227, 31837, 34337, 35742, 37052, 37772, 40587, 40957, 41672, 42147, 43687, 44192 ]
[ "nonn", "hear" ]
A143382
[ 1, 2, 5, 17, 71, 121, 731, 1711, 41099, 370019, 740101, 2713789, 1206137, 423355111, 846710651, 1814380259, 203210595443, 12654139763, 531473870981, 43758015399281, 525096184837561, 441080795274037, 22054039763790028 ]
[ "easy", "frac", "nonn" ]
A123907
[ 1, 1, 2, -1, 19, 18, 46, 39, 79, 178, 179, 306, 394, 375, 469, 662, 887, 872, 1127, 1265, 1248, 1553, 1703, 2018, 2600, 2780, 2763, 2987, 2958, 3134, 4587, 4849, 5380, 5373, 6518, 6503, 7100, 7725, 8089, 8750, 9431, 9452, 10859, 10892, 11260, 11219, 13275, 15485, 15947, 15908, 16358, 17257, 17222, 19189 ]
[ "easy", "sign", "less" ]
A113607
[ 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 4, 1, 1, 1, 1, 11, 11, 1, 1, 1, 1, 26, 66, 26, 1, 1, 1, 1, 57, 302, 302, 57, 1, 1, 1, 1, 120, 1191, 2416, 1191, 120, 1, 1, 1, 1, 247, 4293, 15619, 15619, 4293, 247, 1, 1, 1, 1, 502, 14608, 88234, 156190, 88234, 14608, 502, 1, 1 ]
[ "nonn", "tabl", "less" ]
A148101
[ 1, 1, 2, 4, 10, 26, 77, 231, 731, 2363, 7920, 27084, 94817, 336983, 1216568, 4453388, 16502271, 61814816, 233856348, 892573723, 3434288432, 13314937000, 51972107496, 204140373934, 806591451331, 3204158551284, 12792440649653, 51316797101243, 206757825981157, 836465018168185, 3397296971539772 ]
[ "nonn", "walk" ]
A082428
[ 1, 5, 21, 111, 693, 4989, 40743, 372507, 3771633, 41907033, 507075099, 6638074023, 93486209157, 1409484384213, 22652427603423, 386601431098419, 6982988349215193, 133087542655630740, 2669144605482372000, 56192518010155200000, 1.239045022123922e+21, 2.8557037652760873e+22 ]
[ "nonn" ]
A309585
[ 5, 13, 25, 29, 37, 53, 61, 65, 101, 109, 125, 137, 145, 149, 157, 169, 173, 181, 185, 197, 229, 265, 269, 277, 293, 305, 317, 325, 349, 373, 377, 389, 397, 421, 461, 481, 505, 509, 521, 541, 545, 557, 569, 593, 613, 625, 653, 661, 677, 685, 689, 701, 709 ]
[ "nonn" ]
A358920
[ 10, 7909, 1622015, 329967798, 57533191444, 9454839968415, 1482823362091281, 224616420155224400, 33098477832558055000, 4.770920988514661e+21, 6.754196800168704e+23, 9.419784841135561e+25 ]
[ "nonn" ]
A206814
[ 4, 8, 13, 18, 23, 27, 33, 37, 42, 47, 52, 56, 62, 66, 70, 76, 80, 85, 90, 95, 99, 105, 109, 114, 119, 124, 128, 134, 138, 142, 147, 152, 157, 161, 167, 171, 176, 181, 186, 190, 196, 200, 204, 210, 214, 219, 224, 229, 233, 239, 243, 248, 253, 258, 262 ]
[ "nonn" ]
A115635
[ 1, 1, -5, 0, 1, -3, -1, 0, -3, 1, -1, -4, 1, 1, -5, 0, 1, -3, -1, 0, -3, 1, -1, -4, 1, 1, -5, 0, 1, -3, -1, 0, -3, 1, -1, -4, 1, 1, -5, 0, 1, -3, -1, 0, -3, 1, -1, -4, 1, 1, -5, 0, 1, -3, -1, 0, -3, 1, -1, -4, 1, 1, -5, 0, 1, -3, -1, 0, -3, 1, -1, -4 ]
[ "easy", "sign" ]
A006170
[ 1, 3, 5, 11, 17, 33, 50, 89, 135, 223, 332, 531, 776, 1194, 1730, 2591, 3700, 5429, 7660, 11035, 15417, 21851, 30225, 42300, 57966, 80146, 108956, 149076, 201073, 272587, 365009, 490656, 652700, 870597, 1150875, 1524479, 2003426, 2636589, 3446140 ]
[ "nonn" ]
A151997
[ 9, 169, 12769, 1238769, 123498769, 12346098769, 1234572098769, 123456832098769, 12345679432098768, 1234567905432098800, 123456790165432090000, 1.2345679012765431e+22, 1.2345679012387653e+24, 1.2345679012349876e+26, 1.2345679012346098e+28 ]
[ "nonn", "base" ]
A038549
[ 1, 4, 12, 24, 36, 60, 192, 120, 180, 240, 576, 360, 1296, 900, 720, 840, 9216, 1260, 786432, 1680, 2880, 15360, 3600, 2520, 6480, 61440, 6300, 6720, 2359296, 5040, 3221225472, 7560, 46080, 983040, 25920, 10080, 206158430208, 32400, 184320 ]
[ "nonn" ]
A242120
[ 2, 3, 5, 7, 11, 13, 17, 19, 3, 9, 11, 17, 1, 3, 7, 13, 19, 1, 7, 11, 13, 19, 3, 9, 17, 1, 3, 7, 9, 13, 7, 11, 17, 19, 9, 11, 17, 3, 7, 13, 19, 1, 11, 13, 17, 19, 11, 3, 7, 9, 13, 19, 1, 11, 17, 3, 9, 11, 17, 1, 3, 13, 7, 11, 13, 17, 11, 17, 7, 9, 13, 19, 7 ]
[ "nonn", "easy" ]
A130148
[ 1, 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 14, 14, 14, 14, 14, 14 ]
[ "easy", "nonn" ]
A025361
[ 82, 100, 102, 103, 106, 108, 111, 114, 115, 117, 118, 122, 126, 127, 132, 143, 145, 151, 153, 167, 169, 181, 191, 194, 204, 211, 212, 227, 236, 251, 257, 328, 400, 408, 424, 432, 456, 472, 488, 504, 528, 776, 816, 848, 944, 1312, 1600, 1632, 1696, 1728, 1824, 1888 ]
[ "nonn" ]
A010687
[ 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6, 1, 6 ]
[ "nonn", "cons", "easy" ]
A323473
[ 0, 0, 0, 0, 1, 0, 0, 2, 2, 0, 0, 3, 1, 3, 0, 0, 4, 0, 0, 4, 0, 0, 5, 2, 1, 2, 5, 0, 0, 6, 1, 0, 0, 1, 6, 0, 0, 7, 3, 1, 1, 1, 3, 7, 0, 0, 8, 3, 2, 0, 0, 2, 3, 8, 0, 0, 9, 4, 1, 0, 1, 0, 1, 4, 9, 0, 0, 10, 4, 2, 1, 0, 0, 1, 2, 4, 10, 0 ]
[ "nonn", "tabl" ]
A290786
[ 1, 1, -1, -23, 3429, 8425506, -412878084725, -497641562809372350, 1.743626049905462e+25, 2.050369488357058e+34, -9.174396935412872e+44, -1.74628156673287e+57 ]
[ "sign" ]
A301113
[ 1, 4, 11, 20, 29, 50, 82, 104, 129, 180, 220, 277, 321, 366, 445, 497, 562, 644, 745, 816, 888, 1009, 1089, 1149, 1297, 1444, 1542, 1614, 1751, 1931, 1999, 2140, 2311, 2501, 2627, 2742, 2924, 3089, 3223, 3462, 3622, 3791, 3989, 4189, 4410, 4525, 4768 ]
[ "nonn" ]
A222508
[ 5, 44, 441, 8489, 81537, 1802656, 19892241, 473772613, 5455705052, 132847734428, 1556509083100, 38249750511090, 451888833065131, 11163258877769638, 132555800154675330, 3286688523503328000, 39169490256183060000 ]
[ "nonn" ]
A361219
[ 2, 11, 56, 370, 2666, 19126, 134902, 1026667, 8049132, 60996816, 450456500, 3427769018, 27127841200, 211563038980, 1837421211974, 15474223886906 ]
[ "nonn", "more" ]
A383329
[ 0, 1, 2, 2, 3, 3, 4, 3, 4, 4, 5, 4, 5, 5, 5, 4, 5, 5, 6, 5, 6, 6, 6, 5, 6, 6, 6, 6, 7, 6, 7, 5, 6, 6, 7, 6, 7, 7, 7, 6, 7, 7, 7, 7, 7, 7, 8, 6, 7, 7, 7, 7, 8, 7, 8, 7, 8, 8, 8, 7, 8, 8, 8, 6, 7, 7, 8, 7, 8, 8, 9, 7, 8, 8, 8, 8, 9, 8, 9, 7, 8, 8, 8, 8, 8, 8, 9 ]
[ "nonn" ]
A031850
[ 8254, 8779, 10159, 10921, 11071, 11971, 12622, 13129, 13183, 13249, 13849, 14998, 15046, 15313, 15559, 15607, 15772, 15781, 16189, 16444, 17431, 17662, 17911, 19774, 20197, 20563, 20857, 21569, 22033, 23524, 23774, 24561, 24733, 25257, 25582, 25749 ]
[ "nonn" ]
A299584
[ 1, 16, 8, 84, 229, 720, 4326, 15638, 62867, 299505, 1292124, 5301037, 23788861, 105382810, 445139633, 1954124848, 8627099683, 37128694429, 161785978010, 710198752914, 3082692941493, 13413874059673, 58661578434695 ]
[ "nonn" ]
A200051
[ 1, 4, 10, 26, 68, 178, 472, 1276, 3462, 9496, 26024, 71956, 198740, 552814, 1535556, 4290252, 11968194, 33553214, 93917400, 264020106, 741024426, 2087799972, 5872999754, 16577458520, 46720454112, 132081262316, 372843051320 ]
[ "nonn" ]
A187440
[ 206705746, 1606497082565, 12634446300216814, 99822247953081220000, 7.876650070157322e+23 ]
[ "nonn" ]
A298181
[ 0, 5, 5, 10, 27, 53, 114, 257, 561, 1286, 2875, 6483, 14836, 33739, 76959, 176116, 402969, 923505, 2117450, 4857133, 11149229, 25598958, 58792507, 135063467, 310331636, 713157987, 1639076783, 3767508164, 8660572913, 19909853545 ]
[ "nonn" ]
A323232
[ 1, 3, 9, 51, 225, 1083, 5049, 23811, 111825, 525963, 2472489, 11625171, 54655425, 256967643, 1208146329, 5680180131, 26705711025, 125558574123, 590321410569, 2775432824691, 13048869758625, 61350071873403, 288441173689209, 1356124096054851, 6375901677678225 ]
[ "nonn", "easy" ]
A284676
[ 2, 3, 4, 5, 7, 8, 9, 11, 12, 13, 15, 16, 17, 18, 20, 21, 22, 24, 25, 26, 28, 29, 30, 31, 33, 34, 35, 37, 38, 39, 41, 42, 43, 44, 46, 47, 48, 50, 51, 52, 54, 55, 56, 58, 59, 60, 61, 63, 64, 65, 67, 68, 69, 71, 72, 73, 74, 76, 77, 78, 80, 81, 82, 84, 85, 86 ]
[ "nonn", "easy" ]
A365860
[ 1, 4, 16, 62, 206, 790, 3042, 12648, 52181, 220372, 927333, 3917738, 16491489, 69356256, 290882884, 1217780926 ]
[ "nonn", "more" ]
A136015
[ 2, 3, 5, 41, 89, 131, 743, 761, 3449, 6173, 9059, 10781, 11549, 13553, 14939, 15569, 16301, 27809, 33479, 54773, 55439, 57149, 70901, 71849, 76091, 97523, 103391, 103643, 104369, 110543, 114269, 115499, 140111, 141539, 153509, 161033, 162251 ]
[ "nonn" ]
A135424
[ 1, 1, 2, 6, 576, 1728000, 373248000, 645241282560000, 1.0656206238850744e+23, 2.2833800235917308e+33, 8.285929429609672e+45, 6.445338699818543e+60 ]
[ "nonn", "base" ]
A207768
[ 2, 16, 84, 828, 11950, 195160, 6513576, 364308938, 15284596082, 2700018736020, 787454317079753, 72216754252055380, 73270546375550140000, 1.1972854008833071e+23, 2.2114539991379386e+25 ]
[ "nonn" ]
A247247
[ 0, 1, 3, 21, 120, 300, 2080, 11781, 29403, 203841, 1154440, 2881200, 19974360, 113123361, 282328203, 1957283461, 11084934960, 27665282700, 191793804840, 1086210502741, 2710915376403, 18793835590881, 106437544333680, 265642041604800, 1841604094101520 ]
[ "nonn" ]
A390471
[ 1, 7, 53, 428, 3591, 30859, 269507, 2381233, 21224067, 190464262, 1718577123, 15576393434, 141705054948, 1293231912849, 11834368060398, 108551318841931, 997744761134880, 9187416419219784, 84736319549112260, 782662340868457200, 7238445631648114000 ]
[ "nonn", "new" ]
A113595
[ 12, 12, 12, 12, 45, 12, 56, 56, 45, 910, 1617, 1920, 78, 56, 45, 1920, 34, 1314, 2223, 1920, 1617, 2728, 2829, 1920, 2425, 78, 3132, 56, 3132, 1920, 2728, 1920, 1617, 3536, 910, 3132, 2627, 4142, 78, 1920, 2829, 3738, 2021, 2728, 4950, 5152, 2021, 1920, 1617 ]
[ "base", "nonn" ]
A088449
[ 1, 16, 20, 27, 32, 36, 42, 48, 54, 64, 66, 72, 78, 81, 84, 88, 96, 99, 100, 104, 108, 110, 117, 120, 125, 126, 128, 130, 135, 136, 140, 144, 147, 150, 152, 156, 160, 162, 168, 170, 175, 176, 180, 184, 189, 190, 192, 196, 200, 204, 210, 216, 224, 225, 228, 238 ]
[ "nonn" ]
A341990
[ 0, 1, 4, 12, 40, 128, 402, 1278, 4040, 12776, 40417, 127803, 404136, 1277995, 4041401, 12779996, 40413886, 127799963 ]
[ "nonn", "more" ]
A341050
[ 1, 1, 1, 3, 1, 1, 3, 1, 5, 8, 1, 1, 3, 1, 5, 8, 1, 7, 21, 19, 1, 1, 3, 1, 5, 8, 1, 7, 21, 20, 1, 9, 40, 81, 43, 1, 1, 3, 1, 5, 8, 1, 7, 21, 20, 1, 9, 40, 81, 47, 1, 11, 65, 208, 295, 94, 1, 1, 3, 1, 5, 8, 1, 7, 21, 20, 1, 9, 40, 81, 48, 1, 11, 65, 208, 297, 107, 1, 13, 96, 425, 1024, 1037, 201 ]
[ "nonn", "look", "tabf" ]
A371105
[ 102, 1002, 1022, 1102, 10002, 10022, 10222, 11002, 11022, 11102, 100002, 100022, 100222, 102102, 102222, 110002, 110022, 110222, 111002, 111022, 111102, 1000002, 1000022, 1000222, 1002102, 1002222, 1021002, 1021022, 1021102, 1022102, 1022222, 1100002 ]
[ "nonn", "base" ]
A208918
[ 1, 1, 4, 1, 4, 12, 1, 4, 16, 40, 1, 4, 20, 64, 128, 1, 4, 24, 88, 240, 416, 1, 4, 28, 112, 368, 896, 1344, 1, 4, 32, 136, 512, 1504, 3264, 4352, 1, 4, 36, 160, 672, 2240, 5952, 11776, 14080, 1, 4, 40, 184, 848, 3104, 9472, 23168, 41984, 45568, 1, 4, 44 ]
[ "nonn", "tabl" ]
A179879
[ 6, 65, 69, 77, 129, 185, 194, 210, 221, 237, 254, 309, 321, 330, 365, 398, 417, 437, 462, 473, 482, 497, 533, 546, 554, 570, 573, 581, 597, 614, 626, 662, 669, 681, 690, 714, 753, 758, 785, 789, 794, 813, 858, 893, 905, 914, 966, 993, 1037, 1073, 1094, 1101, 1122 ]
[ "nonn" ]
A139424
[ 1, 1, 1, 1, 1, 43, 1, 41, 53, 91, 317, 317, 43, 1, 37, 3595, 563, 17239, 911, 11497, 58501, 1259, 10283, 138569, 72247, 27733, 11777, 179105 ]
[ "hard", "more", "nonn" ]
A197473
[ 4, 50, 374, 2824, 22672, 165200, 1265828, 9507212, 72145488, 544829612, 4121917612, 31166838320, 235726500646, 1782712177744, 13482608699280, 101968288116918, 771180418816752, 5832406885650952, 44110365514811080 ]
[ "nonn" ]
A137399
[ 1, 2, 2, 1, 4, 8, 8, 4, 16, 32, 32, 16, 64, 128, 128, 64, 256, 512, 512, 256, 1024, 2048, 2048, 1024, 4096, 8192, 8192, 4096, 16384, 32768, 32768, 16384, 65536, 131072, 131072, 65536, 262144, 524288, 524288, 262144, 1048576, 2097152, 2097152, 1048576, 4194304 ]
[ "nonn", "easy" ]
A090861
[ 1, 6, 5, 4, 3, 2, 9, 8, 7, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 25, 24, 23, 22, 21, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 49, 48, 47, 46, 45, 44, 43, 72, 71, 70, 69, 68, 67, 66, 65, 64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50 ]
[ "easy", "nonn" ]
A271747
[ 1754, 5649, 20085, 77133, 315597, 1362669, 6164685, 29058813, 142084077, 717966669, 3737612685, 19991467293, 109605434157, 614681711469, 3519553748685, 20540447808573, 121996580169837, 736352527581069, 4510823754140685, 28011087761890652, 176122939449075100 ]
[ "nonn", "easy" ]
A207752
[ 2, 4, 4, 6, 16, 6, 9, 36, 36, 9, 12, 81, 102, 81, 14, 16, 144, 289, 270, 196, 22, 20, 256, 612, 900, 798, 484, 35, 25, 400, 1296, 2100, 3249, 2354, 1225, 56, 30, 625, 2340, 4900, 8778, 11449, 7210, 3136, 90, 36, 900, 4225, 9450, 23716, 34668, 42436, 22232, 8100, 145, 42 ]
[ "nonn", "tabl" ]
A325857
[ 1, 1, 2, 3, 5, 7, 11, 15, 22, 30, 41, 55, 74, 97, 125, 165, 209, 269, 335, 428, 527, 664, 804, 1005, 1210, 1496, 1780, 2186, 2586, 3148, 3698, 4473, 5226, 6279, 7290, 8706, 10067, 11950, 13744, 16242, 18605, 21864, 24942, 29184, 33188, 38651, 43782, 50791, 57402, 66300, 74683, 86026, 96658 ]
[ "nonn" ]
A048561
[ 9, 961, 9616201, 961620162020001, 9.616201620200016e+30, 9.616201620200016e+61 ]
[ "nonn", "base" ]
A018924
[ 1, 3, 9, 27, 297, 891, 38313, 114939 ]
[ "nonn", "nice", "more", "changed" ]
A261026
[ 5, 2, 3, 8, 8, 9, 3, 5, 3, 9, 6, 1, 5, 9, 3, 8, 4, 9, 1, 9, 0, 6, 2, 2, 7, 8, 5, 5, 9, 4, 0, 0, 3, 6, 1, 1, 7, 4, 3, 7, 1, 6, 2, 8, 4, 5, 1, 9, 8, 9, 4, 3, 9, 4, 4, 4, 3, 3, 6, 4, 0, 7, 4, 8, 4, 2, 2, 7, 4, 1, 5, 5, 1, 6, 1, 6, 4, 2, 2, 5, 1, 4, 8, 5, 2, 2, 4, 5, 4, 6, 4, 2, 1, 3, 3, 0, 1, 7, 0, 9, 9, 9, 7, 0, 9 ]
[ "nonn", "cons", "easy" ]
A146947
[ 1, 0, 0, 0, 0, 0, 571704, 17008194, 5507510484, 1252615755636, 166058829151929, 13047194638256310, 629048483051035000, 19087129808556585000, 372099697089030100000, 4.739291490433883e+21 ]
[ "nonn", "fini" ]
A008203
[ 1, 4, 9, 19, 35, 52, 78, 106, 139, 179, 213, 266, 318, 366, 439, 501, 553, 648, 718, 790, 895, 977, 1063, 1184, 1272, 1378, 1511, 1617, 1727, 1876, 1998, 2122, 2281, 2421, 2551, 2732, 2878, 3022, 3223, 3381, 3529, 3752, 3918, 4086, 4319, 4497, 4679, 4928 ]
[ "nonn" ]
A013682
[ 1, 57, 1, 1, 1, 15, 1, 6, 3, 61, 1, 5, 3, 1, 6, 1, 3, 3, 6, 1, 10, 1, 3, 2, 1, 4, 1, 1, 5, 1, 61, 1, 3, 1, 2, 1, 3, 2, 1, 3, 1, 2, 2, 28, 1, 2, 18, 53, 2, 1, 17, 11, 3, 4, 3, 5, 2, 1, 27, 9, 8, 3, 3, 3, 9, 5, 1, 3, 29, 1, 4, 1, 2, 40, 4, 8, 1, 3, 1, 2, 2, 1, 4 ]
[ "nonn", "cofr" ]
A304615
[ 234, 741, 1755, 3783, 7839, 15951, 32175, 64623, 129519, 259311, 518895, 1038063, 2076399, 4153071, 8306415, 16613103, 33226479, 66453231, 132906735, 265813743, 531627759, 1063255791, 2126511855, 4253023983, 8506048239, 17012096751, 34024193775, 68048387823, 136096775919, 272193552111 ]
[ "nonn", "easy" ]
A369067
[ 1, 2, 2, 1, 2, 3, 2, 3, 2, 4, 5, 1, 2, 6, 1, 7, 2, 8, 9, 1, 10, 11, 4, 9, 2, 6, 3, 1, 6, 1, 12, 5, 2, 13, 14, 1, 11, 15, 8, 11, 16, 17, 18, 1, 8, 19, 1, 20, 2, 6, 3, 1, 4, 4, 6, 4, 6, 5, 9, 1, 6, 8, 2, 20, 2, 21, 11, 1, 16, 22, 13, 15, 23, 24, 25, 1, 13, 21, 1, 26, 27, 28, 29, 1, 30, 29, 17, 31, 13, 21, 15, 1, 16 ]
[ "nonn" ]
A047392
[ 0, 1, 3, 5, 7, 8, 10, 12, 14, 15, 17, 19, 21, 22, 24, 26, 28, 29, 31, 33, 35, 36, 38, 40, 42, 43, 45, 47, 49, 50, 52, 54, 56, 57, 59, 61, 63, 64, 66, 68, 70, 71, 73, 75, 77, 78, 80, 82, 84, 85, 87, 89, 91, 92, 94, 96, 98, 99, 101, 103, 105, 106, 108, 110 ]
[ "nonn", "easy" ]
A136966
[ 0, 887, 8870, 8886, 8887, 87676, 87687, 88700, 88860, 88870, 88887, 89867, 876760, 876870, 887000, 887676, 888600, 888700, 888870, 898670, 989897, 7788887, 7796076, 8767600, 8768700, 8870000, 8876760, 8886000, 8887000, 8888700, 8986700, 8998667, 9888887, 9898970, 77888870, 77960760, 87676000, 87687000, 87787687, 87788887, 88700000 ]
[ "base", "nonn" ]
A236720
[ 81, 639, 6879, 127113, 3413516, 173486981, 12274465993, 2038592272997, 393572287740663 ]
[ "nonn" ]
A147812
[ 7, 13, 23, 31, 37, 53, 61, 67, 73, 89, 97, 103, 113, 131, 139, 157, 173, 181, 193, 211, 223, 233, 241, 263, 271, 277, 293, 307, 317, 337, 359, 373, 389, 409, 421, 433, 449, 457, 467, 479, 491, 509, 523 ]
[ "nonn" ]
A106820
[ 2, 3, 5, 41, 131, 191, 193, 223, 311, 317, 397, 461, 593, 599, 641, 821, 823, 881, 1031, 1091, 1093, 1097, 1291, 1297, 1301, 1321, 1327, 1451, 1709, 1871, 2069, 2081, 2083, 2179, 2311, 2351, 2357, 2551, 2557, 2579, 2711, 3163, 3167, 3251, 3253, 3257, 3259 ]
[ "base", "nonn" ]
A355171
[ 0, 1, 7, 50, 406, 3804, 41028, 506064, 7084656, 111690720, 1967421600, 38425449600, 825970435200, 19404363283200, 495012834489600, 13632039812966400, 403120633444300800, 12740557701389414000, 428546132879432600000, 1.5284163618598275e+22, 5.7607302541093766e+23 ]
[ "nonn" ]
A308286
[ 1, 2, 4, 12, 20, 40, 84, 140, 252, 456, 752, 1260, 2128, 3392, 5436, 8760, 13582, 21092, 32744, 49620, 75104, 113448, 168508, 249620, 368840, 538412, 783480, 1136652, 1634000, 2341280, 3344680, 4743684, 6706120, 9452392, 13245800, 18504888, 25777520, 35735376 ]
[ "nonn" ]
A152188
[ 0, 1, 1, 1, 2, 1, 3, 1, 3, 1, 3, 1, 5, 1, 3, 2, 3, 1, 5, 1, 5, 2, 2, 1, 7, 1, 3, 2, 4, 1, 7, 1, 5, 2, 2, 3, 6, 1, 3, 2, 6, 1, 7, 1, 5, 3, 2, 1, 9, 1, 5, 2, 4, 1, 7, 2, 6, 2, 2, 1, 11, 1, 3, 4, 4, 3, 5, 1, 5, 2, 6, 1, 11, 1, 3, 4, 3, 3, 5, 1, 9, 2, 2, 1, 11, 2, 2, 3, 6, 1, 11, 2, 4, 2, 2, 3, 9, 1, 5, 4, 6, 1, 7, 1, 7, 4 ]
[ "nonn" ]
A099261
[ 2, 5, 10, 13, 17, 21, 24, 28, 31, 35, 38, 42, 45, 49, 52, 56, 59, 62, 66, 69, 73, 76, 79, 83, 86, 89, 93, 96, 100, 103, 106, 110, 113, 116, 120, 123, 127, 130, 133, 137, 140, 143, 147, 150, 153, 157, 160, 163, 167, 170, 173, 177, 180, 184, 187, 190, 194, 197, 200, 204 ]
[ "nonn", "base" ]
A049762
[ 0, 0, 1, 1, 4, 1, 9, 7, 11, 12, 25, 18, 34, 34, 41, 32, 76, 44, 87, 64, 93, 85, 122, 75, 80, 160, 144, 132, 172, 103, 218, 232, 220, 245, 251, 210, 299, 330, 344, 315, 413, 275, 456, 392, 383, 472, 502, 479, 449, 553, 557, 626, 646, 632, 628, 618, 771 ]
[ "nonn", "easy" ]