id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A030121
[ 3, 0, 0, 0, 0, 0, 0, 0, 0, 0, -1, 0, 0, 0, 0, 0, 0, 0, 0, -4, 3, 0, 0, 0, 0, 0, 0, 0, -30, 48, -19, 0, 0, 0, 0, 0, -36, -136, 468, -408, 111, 0, 0, 0, -150, -180, -135, 3240, -5340, 3260, -696, -132, -414, -612...
[ "sign" ]
A208053
[ 15, 4140, 18171918, 346212384169, 18633407199331520, 2.2545611020474536e+21, 5.313014102538691e+26, 2.208530444181091e+32, 1.5057488972098916e+38, 1.5923969454803877e+44 ]
[ "nonn" ]
A255546
[ 1, 2, 3, 4, 5, 7, 6, 11, 10, 16, 8, 22, 15, 29, 21, 37, 12, 46, 9, 56, 28, 67, 17, 79, 36, 92, 14, 106, 23, 121, 45, 137, 55, 154, 30, 172, 66, 191, 13, 211, 38, 232, 78, 254, 20, 277, 47, 301, 91, 326, 105, 352, ...
[ "nonn" ]
A299728
[ 0, 1, 1, 1, 4, 1, 2, 18, 18, 2, 3, 64, 141, 64, 3, 5, 236, 1027, 1027, 236, 5, 8, 888, 7664, 14701, 7664, 888, 8, 13, 3336, 57471, 217069, 217069, 57471, 3336, 13, 21, 12512, 430401, 3224826, 6354153, 3224826, 430401, 12512, 21,...
[ "nonn", "tabl" ]
A314188
[ 1, 5, 11, 17, 21, 26, 33, 39, 43, 47, 54, 61, 65, 69, 75, 82, 87, 91, 97, 103, 108, 113, 119, 125, 129, 134, 141, 147, 151, 155, 162, 169, 173, 177, 183, 190, 195, 199, 205, 211, 216, 221, 227, 233, 237, 242, 249, 255, 2...
[ "nonn" ]
A030817
[ 1, 3, 10, 40, 202, 1213, 8492, 67937, 611436, 6114366, 67258030, 807096361, 10492252698, 146891537782, 2203373066735, 35253969067771, 599317474152112, 10787714534738020, 204966576160022370, 4099331523200447500, 86085961987209400000, 1.8938911637186067e+21 ]
[ "nonn" ]
A053973
[ 9, 676, 69696, 97969, 9696996, 9697699776769, 77797697969777780, 776797677679677700, 6776696769676670000, 9767769967769768000, 9.766799976777977e+22, 7.676999976999997e+24, 6.9997676676669665e+25, 6.797697667697997e+28, 9.6667776776768e+31 ]
[ "nonn", "base" ]
A002318
[ 1, 3, 8, 19, 42, 88, 176, 339, 633, 1150, 2040, 3544, 6042, 10128, 16720, 27219, 43746, 69483, 109160, 169758, 261504, 399272, 604560, 908248, 1354427, 2005710, 2950544, 4313232, 6267642, 9055856, 13013440, 18603603, 26463168, 37464230 ]
[ "nonn" ]
A260292
[ 2300, 3591, 8660, 19157, 29166, 72652, 168582, 292171, 625218, 1609460, 3089276, 5899876, 14968692, 32584495, 60074924, 138997590, 329692778, 635872137, 1328430704, 3213573808, 6701074756, 13249275795, 30807670852, 68769864418 ]
[ "nonn" ]
A131526
[ 1, 1, 0, 3, 11, 40, 184, 1036, 12949, 88488, 807008, 7362586, 113572183, 1238477032, 15630890560, 228998728050, 4141605806441, 62222251093216, 1030119451142656, 19050688698470430, 412037845709792100, 8102391640556571000, 165794307361686880000 ]
[ "easy", "nonn" ]
A198623
[ 2, 76, 3904, 342414, 38208073, 5040999127, 713917706692, 104761044616109, 15592916566103796, 2336049130708319000, 350907921051582660000, 5.277384821322191e+22, 7.940710788554387e+24 ]
[ "nonn" ]
A246382
[ 1, 1, 3, 12, 73, 584, 5889, 73184, 1089057, 19019632, 384301729, 8870379064, 231356923985, 6757908117208, 219384432585553, 7861969355896416, 309183385066009660, 13273824175564132000, 619230263962630500000, 3.125857319577444e+22, 1.7010195088967035e+24, 9.944631206248516e+25...
[ "nonn" ]
A355915
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 1, 1, 2, 1, 2, 1, 2, 1, 2, 1, 2, 2, 1, 1, 2, 1, 1, 2, 1, 1, 2, 1, 3, 1, 1, 1, 2, 1, 1, 1, 2, 2, 1, 1, 1, 2, 1, 1...
[ "nonn" ]
A136620
[ 1, 1, -1, 0, -1, 1, -2, 4, -2, -4, 14, -17, 8, -1, 0, 4, -13, 15, -7, 1, 8, -32, 46, -25, -1, 5, -1, 8, -48, 116, -144, 96, -32, 4, 0, -24, 132, -300, 361, -244, 90, -16, 1, -16, 96, -228, 252, -79, -109, 134, -62, ...
[ "uned", "tabl", "sign" ]
A207933
[ 42, 1764, 6216, 21904, 126688, 732736, 3773248, 19430464, 105642128, 574369156, 3050871800, 16205290000, 87703589600, 474654858304, 2537509425088, 13565549724736, 73283287813072, 395888141775844, 2122391971076888 ]
[ "nonn" ]
A280137
[ 1, 10, 10, 1100, 111, 111110, 10, 11111100, 1111, 1111111000, 1111, 111111111110, 10010, 11111111101100, 101111, 1111111111101010, 10100000, 111111111110011100, 11110000, 11111111111110010000, 111110000, 1.111111111111111e+21, 1011000 ]
[ "nonn", "easy" ]
A370773
[ 0, 1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 5, 2, 1, 0, 1, 12, 7, 2, 1, 0, 1, 30, 26, 7, 2, 1, 0, 1, 74, 110, 30, 7, 2, 1, 0, 1, 188, 481, 159, 30, 7, 2, 1, 0, 1, 478, 2209, 940, 168, 30, 7, 2, 1, 0, 1, 1235, 1037...
[ "nonn", "tabl" ]
A189684
[ 0, 0, 0, 0, 0, 1, 0, 1, 1, 2, 2, 2, 1, 2, 2, 3, 1, 1, 1, 2, 1, 4, 2, 3, 2, 4, 3, 3, 4, 3, 4, 2, 2, 4, 3, 2, 1, 2, 3, 5, 3, 5, 3, 3, 3, 3, 5, 5, 5, 5, 5, 3, 4, 3, 5, 3, 1, 4, 1, 3, 3, 7, 3, 6...
[ "nonn" ]
A189211
[ 1, 3, 6, 7, 8, 14, 15, 16, 17, 18, 19, 20, 23, 30, 32, 34, 35, 36, 38, 39, 40, 44, 46, 47, 51, 53, 56, 57, 58, 59, 61, 62, 65, 66, 67, 68, 70, 71, 73, 74, 75, 81, 85, 86, 89, 92, 95, 100, 102, 104, 105, 106, 110,...
[ "nonn" ]
A085137
[ 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 1, 0, 0, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 0, 0, 0, 1, 0, 1...
[ "base", "cons", "nonn" ]
A164826
[ 2, 1, 12, 13, 142, 155, 1692, 1847, 20162, 22009, 240252, 262261, 2862862, 3125123, 34114092, 37239215, 406506242, 443745457, 4843960812, 5287706269, 57721023502, 63008729771, 687808321212, 750817050983, 8195978831042 ]
[ "nonn", "easy", "less" ]
A368353
[ 1, 0, -4, -74, -1297, -39837 ]
[ "sign", "hard", "more" ]
A097511
[ 1, 1, 1, 4, 3, 4, 7, 2, 8, 2, 4, 8, 2, 12, 8, 11, 12, 11, 16, 11, 17, 3, 17, 5, 17, 7, 13, 15, 1, 30, 3, 30, 5, 30, 13, 24, 27, 12, 31, 10, 35, 8, 39, 6, 26, 20, 22, 26, 20, 30, 18, 34, 16, 38, 10, 49, 12...
[ "easy", "nonn" ]
A212327
[ 36, 62480, 141440, 1245335, 1432640, 2286080, 6680960, 7660880, 27931280, 39685376, 116636864, 179299575, 318047135, 318523136, 358491735, 533718135, 709131500, 1119849500, 1122571695, 1814416175, 2081125376, 3565970135, 3991520000, 4141021500, 4483640576 ]
[ "nonn" ]
A053090
[ 1, 0, 3, 2, 6, 6, 12, 12, 21, 22, 33, 36, 50, 54, 72, 78, 99, 108, 133, 144, 174, 188, 222, 240, 279, 300, 345, 370, 420, 450, 506, 540, 603, 642, 711, 756, 832, 882, 966, 1022, 1113, 1176, 1275, 1344, 1452, 1528, 1644, 17...
[ "nonn", "easy" ]
A390332
[ 1, 6, 57, 593, 6430, 71413, 805699, 9191985, 105746033, 1224418350, 14250975939, 166571639207, 1953863362997, 22987383523018, 271145812000410, 3205433903965642, 37968324109901570, 450513569599070660, 5353819430300912000, 63711736023715730000, 759129500826552000000 ]
[ "nonn", "changed" ]
A383349
[ 0, 1, 488, 668, 686, 848, 866, 884, 1346, 1364, 1436, 1463, 1634, 1643, 2088, 2556, 2565, 2655, 2808, 2880, 3146, 3164, 3416, 3461, 3614, 3641, 4136, 4163, 4316, 4361, 4479, 4497, 4613, 4631, 4749, 4794, 4947, 4974, 5256, 5265, 5526, ...
[ "nonn", "base" ]
A062549
[ 1, 2, 4, 5, 17, 11, 23, 2957, 23117, 204557, 2018957, 37313, 296797, 39229, 622561, 1832213, 87616043, 2462521469, 17209100320681, 5207129, 2558906768309, 135954526571, 85412472868721, 3075880875779 ]
[ "nonn" ]
A169318
[ 1, 17, 272, 4352, 69632, 1114112, 17825792, 285212672, 4563402752, 73014444032, 1168231104512, 18691697672192, 299067162755072, 4785074604081152, 76561193665298430, 1224979098644775000, 19599665578316400000 ]
[ "nonn" ]
A044289
[ 38, 119, 200, 281, 342, 362, 443, 524, 605, 686, 767, 848, 929, 1010, 1071, 1091, 1172, 1253, 1334, 1415, 1496, 1577, 1658, 1739, 1800, 1820, 1901, 1982, 2063, 2144, 2225, 2306, 2387, 2468, 2529, 2549, 2630, 2711, 2792 ]
[ "nonn", "base" ]
A021258
[ 0, 0, 3, 9, 3, 7, 0, 0, 7, 8, 7, 4, 0, 1, 5, 7, 4, 8, 0, 3, 1, 4, 9, 6, 0, 6, 2, 9, 9, 2, 1, 2, 5, 9, 8, 4, 2, 5, 1, 9, 6, 8, 5, 0, 3, 9, 3, 7, 0, 0, 7, 8, 7, 4, 0, 1, 5, 7, 4, 8, 0, 3, 1, 4...
[ "nonn", "cons", "easy" ]
A004255
[ 1, 3, 9, 25, 60, 126, 238, 414, 675, 1045, 1551, 2223, 3094, 4200, 5580, 7276, 9333, 11799, 14725, 18165, 22176, 26818, 32154, 38250, 45175, 53001, 61803, 71659, 82650, 94860, 108376, 123288, 139689, 157675, 177345, 198801, 222148, 247494, ...
[ "nonn", "easy" ]
A190017
[ 1, 1113, 2224, 3335, 4446, 5557, 6668, 7779, 8890, 2, 114, 225, 336, 447, 558, 669, 780, 891, 1002, 1114, 1225, 1336, 1447, 1558, 1669, 1780, 1891, 2002, 2113, 2225, 2336, 2447, 2558, 2669, 2780, 2891, 3002, 3113, 3224, 3336, 3447, 35...
[ "nonn", "base", "fini", "full" ]
A123961
[ 0, -4, 0, -8, 1, 28, -12, 4, 52, 132, -16, 9, 84, 209, 384, -20, 16, 124, 304, 556, 880, -24, 25, 172, 417, 760, 1201, 1740, -28, 36, 228, 548, 996, 1572, 2276, 3108, -32, 49, 292, 697, 1264, 1993, 2884, 3937, 5152, -36, 64,...
[ "tabl", "sign" ]
A028567
[ 0, 1, 3, 66, 88, 91, 173, 216, 225, 284, 294, 696, 707, 924, 2235, 2828, 6996, 9394, 28314, 30031, 57489, 69996, 93844, 188583, 228175, 241097, 283778, 298144, 597883, 699996, 896478, 1934063, 2281817, 6999996, 7243225, 17646619, 17869169, 19...
[ "nonn", "base" ]
A279629
[ 1, -1, 2, -2, 1, 1, -5, 10, -13, 11, -1, -18, 41, -57, 53, -17, -53, 140, -208, 207, -92, -146, 454, -708, 735, -380, -396, 1427, -2307, 2467, -1390, -1077, 4421, -7346, 8018, -4749, -2997, 13634, -23075, 25501, -15523, -8632, 42051...
[ "sign", "easy" ]
A174898
[ 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 0...
[ "nonn" ]
A080318
[ 2, 56, 16256, 4186496, 274374557696, 70239893062016, 4603241631720636400, 3.0167804357644527e+23, 1.2956973310820953e+33, 3.316985167570164e+35 ]
[ "nonn" ]
A067161
[ 2, 5, 7, 17, 13, 37, 19, 47, 41, 61, 37, 107, 43, 89, 89, 127, 61, 167, 71, 181, 131, 151, 89, 281, 127, 181, 173, 263, 113, 359, 131, 307, 223, 251, 223, 467, 163, 281, 263, 463, 181, 503, 193, 433, 397, 359, 223, 683, ...
[ "nonn" ]
A189721
[ 0, 1, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 5, 6, 7, 7, 8, 9, 10, 10, 10, 10, 11, 12, 12, 13, 14, 15, 15, 15, 15, 16, 17, 17, 18, 19, 19, 20, 21, 22, 22, 22, 23, 23, 23, 23, 24, 25, 26, 26, 26, 27, 27, 27, 28, 28, ...
[ "nonn" ]
A377013
[ 2, 2, 5, 16, 64, 321, 1927, 13490, 107921, 971290, 9712901, 106841912, 1282102945, 16667338286, 233342736005, 3500141040076, 56002256641217, 952038362900690, 17136690532212420, 325597120112036000, 6511942402240720000, 136750790447055130000, 3.0085173898352127e+21 ]
[ "nonn", "easy" ]
A269710
[ 2, 11, 229, 2423, 96137, 18428720883408312000, 3766153, 710506473307, 811194664531, 727558628667293, 38668911739295410000, 4.2123470418279037e+65, 1.4879321312213313e+23, 7.794058820969558e+31 ]
[ "nonn", "base" ]
A239994
[ 2, 13, 190, 6527, 635873, 191691132, 182333502325 ]
[ "nonn" ]
A352187
[ 1, 2, 4, 6, 3, 9, 12, 8, 10, 5, 15, 18, 14, 7, 21, 24, 16, 20, 25, 30, 22, 11, 33, 27, 36, 26, 13, 39, 42, 28, 32, 34, 17, 51, 45, 35, 49, 56, 38, 19, 57, 48, 40, 55, 77, 63, 54, 44, 121, 66, 46, 23, 69, 60, ...
[ "nonn" ]
A377434
[ 2, 6, 15, 18, 22, 25, 31, 34, 39, 44, 47, 48, 53, 54, 61, 66, 68, 72, 78, 85, 92, 97, 99, 105, 114, 122, 129, 137, 146, 154, 162, 168, 172, 181, 191, 200, 210, 217, 219, 228, 240, 251, 263, 269, 274, 283, 295, 306, 309, ...
[ "nonn" ]
A153447
[ 1, 2, 4, 9, 19, 49, 131, 424, 1652 ]
[ "dead" ]
A030227
[ 1, 1, 1, 2, 3, 6, 10, 20, 34, 70, 121, 250, 441, 912, 1630, 3375, 6092, 12624, 22961, 47616, 87136, 180811, 332549, 690398, 1275166, 2648422, 4909364, 10199792, 18966700, 39416488, 73497642, 152777230, 285569898, 593717419, 1112188817, 2312672439...
[ "nonn", "changed" ]
A368157
[ 1, 1, 2, 2, 4, 6, 3, 10, 16, 16, 5, 20, 46, 56, 44, 8, 40, 108, 184, 188, 120, 13, 76, 244, 496, 692, 608, 328, 21, 142, 520, 1248, 2088, 2480, 1920, 896, 34, 260, 1074, 2936, 5764, 8256, 8592, 5952, 2448, 55, 470, 2156, ...
[ "nonn", "tabl" ]
A015898
[ 1, 2, 3, 6, 9, 10, 18, 30, 90, 123, 730, 7086, 172426, 300243, 372390, 449674, 1812298, 5027914, 5307130, 17214354, 20788426, 84929451, 101992426, 102177370, 103544442, 106494770, 161388338, 181327546, 193710249, 207083626 ]
[ "nonn" ]
A157488
[ 1, 2, 3, 8, 5, 6, 7, 16, 27, 10, 11, 72, 13, 14, 15, 128, 17, 108, 19, 200, 21, 22, 23, 144, 125, 26, 81, 392, 29, 30, 31, 64, 33, 34, 35, 46656, 37, 38, 39, 400, 41, 42, 43, 968, 675, 46, 47, 3456, 343, 500, 51, 1...
[ "nonn" ]
A076818
[ 1, 4, 35, 969, 302621, 437989, 657359, 939929, 3737581, 6435689, 9290431, 21084251, 26536591, 39338069, 44101441, 61690919, 112805879, 289442201, 439918931, 1008077071, 1103914379, 1220664491, 1369657969, 1504148881, 1779510701, 1868223839, 2252547431 ]
[ "nonn" ]
A359952
[ 2, 1093, 5, 20771, 18043, 5, 20771, 18043, 5, 20771, 18043, 5, 20771, 18043, 5, 20771, 18043, 5, 20771, 18043, 5, 20771, 18043, 5, 20771, 18043, 5, 20771, 18043, 5, 20771, 18043, 5, 20771, 18043, 5, 20771, 18043, 5, 20771, 18043, 5, ...
[ "nonn" ]
A163957
[ 1, 12, 132, 1452, 15972, 175692, 1932546, 21257280, 233822160, 2571956640, 28290564720, 311185670400, 3422926421970, 37650915208500, 414146038003500, 4555452101075700, 50108275682741100, 551172361422635700 ]
[ "nonn" ]
A044922
[ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 37, 38, 39, 40, 41, 43, 48, 49, 51, 52, 53, 54, 55, 56, 58, 59, 60, 61, 62, 6...
[ "nonn", "base" ]
A239646
[ 32, 1898, 127454, 7629186, 471203608, 29007348454, 1778793691226, 109328664988704, 6715782662219974, 412490973458702340, 25339828640359240000, 1.5565207701319679e+21, 9.561358779929474e+22 ]
[ "nonn" ]
A162834
[ 29, 137, 317, 3593, 11657, 19037, 36857, 51977, 57593, 72893, 272477, 324893, 381917, 412157, 435593, 1065017, 1127837, 1633277, 1742393, 2214137, 2782217, 2883197, 3504377, 3802493, 3991997, 4112777, 4460537, 4536893, 7064957, 7354937, 7851197, 8999993,...
[ "nonn" ]
A278767
[ 1, 1, 7, 22, 71, 206, 616, 1712, 4743, 12677, 33407, 86085, 218677, 546060, 1345840, 3271893, 7861239, 18670881, 43883904, 102112483, 235401947, 537869136, 1218743007, 2739566083, 6111766043, 13536683750, 29775945929, 65065819486, 141285315728, 304935221675,...
[ "nonn" ]
A257414
[ 768, 1280, 1792, 2816, 3328, 3645, 4352, 4864, 5103, 5832, 5888, 7424, 7936, 8019, 9472, 9477, 10496, 11008, 12032, 12393, 13568, 13851, 14580, 15104, 15616, 16384, 16767, 17152, 18176, 18688, 20224, 20412, 21141, 21248, 22599, 22784, 24832, ...
[ "nonn" ]
A195717
[ 8, 8, 9, 2, 9, 3, 9, 4, 5, 1, 1, 3, 4, 8, 3, 0, 7, 8, 2, 7, 5, 4, 5, 8, 2, 5, 9, 4, 8, 0, 8, 5, 6, 3, 8, 1, 5, 3, 9, 2, 1, 0, 4, 5, 2, 4, 6, 9, 2, 1, 5, 2, 7, 3, 4, 6, 4, 7, 5, 0, 0, 4, 2, 0...
[ "nonn", "cons" ]
A083192
[ 1, 4, 21, 6, 49, 8, 77, 9, 39, 10, 81, 12, 221, 14, 63, 15, 203, 16, 143, 18, 511, 20, 217, 22, 279, 24, 299, 25, 319, 26, 33, 27, 147, 28, 943, 30, 121, 32, 87, 34, 333, 35, 781, 36, 249, 38, 679, 40, 99, 42, 117, ...
[ "base", "nonn" ]
A132925
[ 1, 4, 10, 21, 41, 78, 148, 283, 547, 1068, 2102, 4161, 8269, 16474, 32872, 65655, 131207, 262296, 524458, 1048765, 2097361, 4194534, 8388860, 16777491, 33554731, 67109188, 134218078, 268435833, 536871317, 1073742258, 2147484112 ]
[ "nonn", "easy" ]
A358578
[ 2, 6, 7, 18, 20, 21, 26, 34, 37, 43, 54, 60, 63, 67, 70, 78, 88, 91, 92, 95, 102, 111, 116, 119, 122, 129, 142, 146, 151, 162, 164, 173, 180, 181, 189, 200, 201, 202, 210, 227, 234, 236, 239, 245, 260, 264, 269, 273, 276...
[ "nonn" ]
A373561
[ 0, 1, 20, 126, 480, 1375, 3276, 6860, 13056, 23085, 38500, 61226, 93600, 138411, 198940, 279000, 382976, 515865, 683316, 891670, 1148000, 1460151, 1836780, 2287396, 2822400, 3453125, 4191876, 5051970, 6047776, 7194755, 8509500, 10009776, 11714560, 13...
[ "nonn", "easy" ]
A148151
[ 1, 1, 2, 4, 11, 30, 93, 294, 969, 3282, 11329, 39882, 142295, 513939, 1875643, 6902317, 25594800, 95509369, 358392077, 1351474090, 5118071489, 19456766201, 74217281735, 283958971978, 1089413455030, 4189811381010, 16149646794893, 62374670683636, 241352432276001...
[ "nonn", "walk" ]
A244661
[ 149, 298, 596, 646, 745, 1192, 1490, 1615, 2119, 2584, 2980, 3109, 3725, 3878, 5960, 6218, 6357, 6460, 7106, 7294, 7450, 8476, 9262, 9868, 10941, 11627, 11634, 11920, 12436, 14535, 14900, 15049, 15545, 16150, 18625, 21190, 22718, 23256, 239...
[ "nonn", "base" ]
A305468
[ 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 27, 31, 33, 39, 43, 45, 51, 53, 55, 57, 61, 63, 65, 71, 73, 77, 79, 83, 85, 91, 93, 95, 99, 107, 109, 117, 119, 121, 127, 129, 133, 143, 149, 151, 153, 157, 159, 163, 165, 171, ...
[ "nonn", "base" ]
A331902
[ 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 4, 1, 0, 0, 0, 0, 0, 0, 0, 2, 2, 0, 0, 0, 0, 0, 0, 0, 0, 1, 5, 1, 0, 0...
[ "nonn", "tabl" ]
A110942
[ 6, 1, 7, 6, 2, 2, 9, 2, 5, 0, 9, 3, 0, 9, 0, 9, 5, 7, 7, 4, 5, 9, 7, 5, 3, 6, 8, 0, 5, 9, 1, 0, 6, 1, 2, 5, 1, 0, 5, 4, 1, 5, 5, 4, 5, 7, 7, 8, 9, 3, 6, 6, 4, 3, 7, 8, 9, 2, 5, 7, 2, 9, 3, 9...
[ "cons", "nonn" ]
A382065
[ 1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20, 21, 22, 23, 25, 26, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 41, 42, 43, 44, 45, 46, 47, 49, 50, 51, 52, 53, 55, 57, 58, 59, 60, 61, 62, 63, ...
[ "nonn", "easy" ]
A265234
[ 1, 43, 2592, 184740, 14439456, 1196114464, 103142395392, 9160513923648, 832211576040960, 76971887847571970, 7223525356855099000, 686117529041422400000, 6.583429365711592e+22, 6.371837299781951e+24 ]
[ "nonn" ]
A312673
[ 1, 4, 8, 14, 20, 25, 28, 33, 37, 41, 48, 54, 58, 60, 66, 70, 74, 82, 88, 91, 92, 99, 103, 107, 116, 122, 124, 124, 132, 136, 140, 150, 156, 157, 156, 165, 169, 173, 184, 190, 190, 188, 198, 202, 206, 218, 224, 223, 220, ...
[ "nonn" ]
A330128
[ 2137453, 194697747222394, 2, 199900, 19706, 209534289952018940, 15, 198104936410, 19511030, 20573, 20572, 2137452, 20534, 19238, 2, 2089707, 20670629294, 1, 21482, 19278442756937612, 2074, 19278442756937612, 20571, 194697747222393, 193, 197062, 1, 197, 2061823...
[ "nonn", "base" ]
A357072
[ 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 2, 1, 0, 1, 1, 1, 2, 1, 1, 2, 1, 2, 2, 0, 2, 3, 1, 1, 3, 2, 1, 4, 3, 0, 3, 2, 2, 4, 3, 3, 3, 1, 3, 3, 2, 4, 5, 4, 1, 5, 3, 2, 6, 3, 3, 6, 4, 2, 5, 4, 4, 5, 4, 2...
[ "nonn" ]
A103265
[ 1, 2, 2, 2, 4, 6, 6, 6, 8, 12, 14, 14, 16, 22, 26, 26, 30, 38, 44, 46, 52, 62, 70, 74, 80, 96, 110, 116, 124, 146, 166, 174, 186, 210, 238, 254, 272, 302, 338, 362, 384, 426, 470, 502, 532, 588, 646, 686, 726, 792, 8...
[ "easy", "nonn" ]
A130642
[ 2, 6, 14, 190, 194, 200, 306, 462, 468, 474, 478, 490, 560, 1208, 1890, 1938, 23716, 23850, 25226, 25834, 25968, 26642, 26650, 26998, 48316, 311888, 311922, 313946, 331540, 331762, 331782, 377078, 377518, 377666, 377674, 377748, 378422, 37842...
[ "nonn" ]
A382225
[ 1, 1, 1, 1, 3, 1, 1, 6, 7, 1, 1, 10, 25, 13, 1, 1, 15, 65, 73, 21, 1, 1, 21, 140, 273, 171, 31, 1, 1, 28, 266, 798, 871, 346, 43, 1, 1, 36, 462, 1974, 3321, 2306, 631, 57, 1, 1, 45, 750, 4326, 10377, 11126, 5335, ...
[ "nonn", "tabl" ]
A109376
[ 1, 11, 20, 33, 35, 36, 75, 79, 390, 1991, 9199, 91899, 699949, 5299999, 39999999, 428999999, 3699949999 ]
[ "base", "more", "nonn" ]
A283426
[ 1, 1, 1, 1, 2, 2, 2, 4, 4, 4, 4, 4, 6, 8, 8, 6, 8, 8, 8, 8, 8, 10, 14, 14, 12, 12, 12, 12, 14, 14, 14, 16, 16, 16, 16, 16, 16, 16, 18, 24, 24, 22, 22, 16, 18, 24, 26, 28, 24, 22, 26, 24, 24, 28, 26, 26, 2...
[ "nonn", "look" ]
A083494
[ 6, 12, 30, 42, 60, 72, 84, 90, 114, 222, 300, 414, 522, 600, 714, 822, 900, 1116, 2004, 3138, 4002, 5118, 6000, 7122, 8004, 9126, 30000, 41112, 50058, 61116, 70002, 81114, 90000, 111114, 200022, 311118, 400002, 511116, 700002, 811116, 9...
[ "base", "easy", "nonn" ]
A314956
[ 1, 5, 9, 14, 20, 25, 29, 34, 41, 42, 52, 54, 61, 62, 73, 70, 82, 84, 91, 90, 103, 100, 112, 112, 123, 118, 135, 128, 144, 140, 155, 146, 165, 158, 174, 168, 185, 176, 195, 186, 206, 196, 217, 204, 227, 214, 238, 224, 247...
[ "nonn" ]
A257707
[ 56, 470, 1094, 7856, 128534, 201539, 3293081, 23435699, 53805155, 382911281, 6256309475, 9809462822, 160274811896, 1140616029542, 2618697452438, 18636292598096, 304494582579398, 477426555904883, 7800575092244921, 55513782134933120, 127452004956911980 ]
[ "nonn", "easy" ]
A343532
[ 2, 7, 31, 83, 307, 503, 919, 1483, 5059, 9439, 10139, 13159, 15647, 17431, 21491, 23671, 30911, 33599, 47459, 49199, 52627, 58199, 62327, 79379, 81551, 90971, 98443, 109171, 114643, 123439, 162007, 168863, 172331, 175811, 278767, 298303, 303011...
[ "nonn" ]
A111116
[ 2, 3, 4, 7, 8, 9, 24, 27, 28, 32, 33, 42, 52, 53, 58, 59, 67, 77, 88, 89, 93, 202, 203, 258, 284, 303, 324, 329, 377, 383, 422, 669, 818, 832, 843, 878, 882, 887, 949, 2027, 2042, 2673, 3144, 3222, 3253, 3302, 3308, 3737, ...
[ "base", "nonn" ]
A359744
[ 1, 1, 2, 2, 4, 6, 10, 11, 17, 28, 38, 66, 104, 142, 180, 197, 377, 574, 612, 1186, 1383, 2569, 3952, 5335, 6718, 8101, 9484, 10867, 12250, 12862, 25112, 35979, 48841, 73953, 122794, 171635, 220476, 256455, 305296, 525772, 831068, 1356...
[ "nonn", "easy" ]
A004043
[ 1, 1, 1, 1, 3, 3, 7, 15, 30, 34 ]
[ "nonn", "hard", "more" ]
A015528
[ 0, 1, 3, 19, 87, 451, 2223, 11179, 55767, 279091, 1394943, 6975739, 34876647, 174387331, 871928463, 4359658699, 21798260727, 108991369171, 544956714783, 2724783836059, 13623918656007, 68119594328611, 340597969545903, 1702989851923819, 8514949251230487, 4257474627292...
[ "nonn", "easy" ]
A370160
[ 1, 4, 32, 286, 2688, 26004, 256322, 2559960, 25816576, 262307824, 2681024032, 27534988936, 283926200706, 2937573629800, 30480431060160, 317053438632786, 3305105501423616, 34519689280675810, 361146528603877500, 3784045825018540000, 39702608870540290000 ]
[ "nonn" ]
A219275
[ 1, 1, 3, 25, 1069, 368168, 1299366501, 55208013380403, 32401197537296757000, 2.9707296183547797e+26, 4.753819982783578e+34, 1.4677987362334467e+44, 9.581411392319396e+54 ]
[ "nonn" ]
A373550
[ 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 0, 1, 1, 0, 1, 0, 1, 1, 0, 1, 1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 1, 1, 0, 1...
[ "nonn", "easy" ]
A224311
[ 27, 324, 1586, 5996, 20214, 61953, 174378, 454832, 1108958, 2547780, 5554847, 11564081, 23107746, 44519456, 83011127, 150287312, 264917825, 455762696, 766835415, 1264104630, 2044874898, 3250558135, 5083853932, 7831604260 ]
[ "nonn" ]
A249651
[ 6, 0, 7, 7, 1, 2, 3, 3, 7, 9, 4, 3, 0, 1, 5, 4, 6, 4, 2, 4, 6, 2, 2, 6, 2, 6, 2, 0, 1, 5, 0, 6, 9, 4, 1, 5, 4, 3, 9, 0, 3, 2, 4, 0, 8, 0, 2, 1, 2, 2, 4, 8, 6, 6, 5, 6, 7, 2, 3, 7, 8, 5, 8, 5...
[ "nonn", "cons", "easy" ]
A302510
[ 3, 3, 11, 9, 14, 21, 28, 37, 51, 72, 100, 137, 188, 260, 360, 497, 685, 945, 1305, 1802, 2487, 3432, 4737, 6539, 9026, 12458, 17195, 23734, 32760, 45218, 62413, 86147, 118907, 164125, 226538, 312685, 431592, 595717, 822255, 1134940, 156...
[ "nonn" ]
A281374
[ 1, -48, 432, 3264, 9456, 21600, 39744, 66432, 105840, 147984, 220320, 281664, 393792, 475104, 646272, 743040, 980592, 1091232, 1432944, 1536960, 1965600, 2118144, 2649024, 2761344, 3516480, 3557040, 4433184, 4594560, 5575296, 5603040, 6998400, 6864384, ...
[ "sign" ]
A346712
[ 1, 2, 6, 5, 210, 63, 66, 6435, 12870, 663, 149226, 1322685, 56810, 68425, 589950, 1479, 138849570090, 46725525, 93880710, 80555475, 92597310, 471824925, 10294985610, 116197611075, 7696675350, 111954046295, 92999520306, 21364716527, 14369656039662, 1499739953...
[ "nonn", "frac" ]
A119596
[ 241, 1627, 2089, 4201, 4663, 4861, 5323, 6247, 6379, 6709, 8821, 9283, 9679, 10141, 12253, 12517, 12781, 13441, 15091, 15289, 15619, 17599, 17929, 19249, 19447, 19843, 21757, 23539, 26839, 28687, 33703, 34429, 34693, 35089, 35353, 36343 ]
[ "nonn" ]
A173243
[ 1, 9, 36, 85, 135, 163, 178, 208, 265, 341, 419, 485, 549, 642, 778, 940, 1110, 1290, 1498, 1761, 2095, 2487, 2921, 3413, 4000, 4712, 5565, 6563, 7711, 9044, 10627, 12516, 14745, 17352, 20397, 23969, 28187, 33176, 39048, 45931, 54007, ...
[ "nonn" ]
A256782
[ 0, 8, 4, 3, 1, 9, 6, 8, 8, 4, 3, 3, 1, 6, 2, 9, 5, 5, 9, 3, 9, 0, 4, 0, 3, 5, 6, 8, 0, 3, 7, 5, 4, 8, 0, 0, 1, 2, 8, 1, 2, 4, 3, 7, 3, 8, 2, 5, 9, 1, 7, 0, 6, 8, 5, 2, 3, 0, 3, 0, 3, 9, 9, 9...
[ "nonn", "cons", "easy" ]
A174284
[ 0, 1, 3, 7, 15, 35, 79, 193, 493, 1299, 3429, 9049, 23699, 62271, 163997, 433433, 1147659, 3040899 ]
[ "more", "nonn" ]
A009003
[ 5, 10, 13, 15, 17, 20, 25, 26, 29, 30, 34, 35, 37, 39, 40, 41, 45, 50, 51, 52, 53, 55, 58, 60, 61, 65, 68, 70, 73, 74, 75, 78, 80, 82, 85, 87, 89, 90, 91, 95, 97, 100, 101, 102, 104, 105, 106, 109, 110, 111, 113, 1...
[ "nonn" ]
A037801
[ 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 1, 1, 1, 2, 1, 1, 1, 0, 1, 1, 0, 0, 1, 1, 1, 1, 1, 2, 2, 1, 1, 2, 1, 1, 1, 0, 1, 1, 1, 1, 2, 1, 1, 1, 0, 1...
[ "nonn", "base" ]