id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A358895
[ 1, 2, 3, 10, 33, 41, 45, 52, 60, 98, 113, 120, 262, 294, 296, 318, 343, 377, 408, 428, 444, 475, 477, 486, 572, 601, 673, 700, 774, 837, 870, 913, 934, 936, 944, 984, 1050, 1115, 1169, 1182, 1230, 1232, 1287, 1391, 1445, 1456,...
[ "nonn" ]
A246568
[ 3, 5, 7, 11, 13, 17, 19, 23, 31, 41, 43, 59, 67, 71, 89, 127, 251, 379, 569, 571, 1093, 1427, 1451, 1733, 2633, 2659, 2903, 3511, 13463, 15329, 15823, 26107, 60631, 546097, 2549177, 110057537, 165322639, 209227901, 671499313, 867457663, ...
[ "nonn", "hard" ]
A023975
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1...
[ "nonn", "base" ]
A065760
[ 1, 4, 39, 624, 19999, 1279936, 163831935, 41940975360, 21473779384831, 21989150090066944, 45033779384457100000, 1.844583603587363e+23, 1.5110828880587677e+27, 2.475758203795485e+31, 8.112564482197045e+35 ]
[ "base", "easy", "nonn" ]
A019311
[ 0, 0, 2, 2, 6, 12, 28, 48, 106, 198, 414, 800, 1644, 3236, 6546, 12982, 26130, 52048, 104404, 208372, 417390, 833930, 1669102, 3336476, 6675512, 13347600, 26700226, 53393562, 106797302, 213580904, 427181968, 854336432, 1708713470, 3417372070, 68348...
[ "nonn" ]
A182934
[ 1, 2, 27, 778, 37553, 2688546, 265141267, 34260962282, 5594505151713, 1123144155626338, 271300013006911200, 77489174023697480000, 2.5797166716252173e+22, 9.890278784047792e+24, 4.3220876302408445e+27 ]
[ "nonn" ]
A215393
[ 2, 59, 97, 173, 191, 211, 229, 401, 419, 439, 457, 571, 647, 743, 761, 857, 971, 1009, 1103, 1123, 1217, 1237, 1427, 1483, 1559, 1579, 1597, 1693, 1787, 1901, 1997, 2053, 2111, 2129, 2243, 2281, 2339, 2357, 2377, 2699, 2719, 2833, 2...
[ "nonn", "easy" ]
A165552
[ 1, 1, 1, 3, 1, 6, 1, 15, 4, 8, 1, 54, 1, 10, 9, 135, 1, 78, 1, 100, 11, 14, 1, 822, 6, 16, 40, 162, 1, 262, 1, 2295, 15, 20, 13, 2142, 1, 22, 17, 2220, 1, 420, 1, 334, 180, 26, 1, 22710, 8, 238, 21, 444, 1, 256...
[ "easy", "nonn", "look" ]
A010977
[ 1, 25, 325, 2925, 20475, 118755, 593775, 2629575, 10518300, 38567100, 131128140, 417225900, 1251677700, 3562467300, 9669554100, 25140840660, 62852101650, 151584480450, 353697121050, 800472431850, 1761039350070, 3773655750150, 7890371113950, 16123801841550 ]
[ "nonn" ]
A281613
[ 1, 2, 3, 4, 5, 6, 7, 9, 11, 13, 15, 17, 19, 21, 23, 27, 30, 33, 36, 39, 42, 45, 48, 54, 58, 62, 67, 72, 77, 82, 87, 96, 102, 108, 116, 123, 130, 137, 144, 156, 164, 172, 183, 192, 201, 210, 219, 234, 244, 254, 268, ...
[ "nonn" ]
A332241
[ 2, 4, 6, 13, 17, 27, 55, 67, 138, 264, 314, 406, 582, 1046, 1835, 3609, 16371, 75611, 118893, 342363 ]
[ "nonn", "fini", "full" ]
A280726
[ 0, 0, 1, 1, 1, 1, 2, 1, 2, 1, 4, 1, 2, 2, 1, 1, 1, 2, 5, 1, 2, 4, 5, 1, 4, 2, 5, 2, 3, 1, 4, 1, 4, 1, 2, 2, 5, 5, 2, 1, 4, 2, 9, 4, 2, 5, 6, 1, 9, 4, 1, 2, 6, 5, 4, 2, 5, 3, 8, 1, 4, 4, 5, 1...
[ "nonn" ]
A141393
[ 1, 7, 25, 33, 84, 294, 462, 750, 1155, 1705, 2431, 3017, 18130, 19684, 22052, 28996, 36907, 45925, 61957, 71309, 168889, 471799, 9998261, 11975939, 21577709, 29764925, 853783375, 1388314375, 1438304875, 2710683875, 2741707205, 62802867395, 72342543455 ...
[ "nonn" ]
A367608
[ 4, 7, 1, -1, 7, 2, 4, 7, 1, 4, 8, 1, 4, 8, 1, 5, 8, 2, 5, 7, 2, -1, 7, 2, 4, 7, 1, 4, 7, 1, 4, 7, 1, 4, 7, 1, 4, 7, 1, 4, 7, 1, 4, 7, 1, 4, 8, 1, 4, 8, 1, 5, 8, 2, 5, 8, 2, 5, 8, 2, 5, 8, 2, ...
[ "sign", "base" ]
A353111
[ 1, 210, 102220, 12221001, 2202111220, 1020020120010, 112101212202101, 20002221022010100, 2112211110001000200, 1.0011002020122e+21, 1.022101212212202e+25, 1.2021221100212122e+29, 2.100201122222221e+33 ]
[ "nonn", "base" ]
A105271
[ 0, 1, 4, 6, 17, 21, 25, 29, 1024, 1032, 1040, 1048, 1056, 1064, 1072, 1080, 1088, 1096, 1104, 1112, 1120, 1128, 1136, 1144, 1152, 1160, 1168, 1176, 1184, 1192, 1200, 1208, 1216, 1224, 1232, 1240, 1248, 1256, 1264, 1272, 1280, 1288, ...
[ "nonn" ]
A005531
[ 1, 1, 4, 8, 6, 9, 8, 3, 5, 4, 9, 9, 7, 0, 3, 5, 0, 0, 6, 7, 9, 8, 6, 2, 6, 9, 4, 6, 7, 7, 7, 9, 2, 7, 5, 8, 9, 4, 4, 3, 8, 5, 0, 8, 8, 9, 0, 9, 7, 7, 9, 7, 5, 0, 5, 5, 1, 3, 7, 1, 1, 1, 1, 8...
[ "nonn", "cons" ]
A032485
[ 66, 84, 880, 3344, 4440, 10148, 18084, 18210, 28380, 35296, 335826, 546500, 570616, 624208, 670496, 1690664, 2264546 ]
[ "nonn", "hard", "more" ]
A172640
[ 1, 73789, 358198369, 8365213132981, 185658731463324900, 5.520471267708882e+21, 1.8206242408721542e+26, 6.705797924085107e+30, 2.6632489193734004e+35 ]
[ "nonn" ]
A003886
[ 1, 9, 9, 18, 18, 18, 18, 19, 20, 20, 20, 20 ]
[ "nonn", "fini", "full" ]
A052310
[ 1, 2, 1, 3, 2, 1, 4, 3, 2, 1, 6, 5, 5, 2, 1, 8, 7, 8, 5, 2, 1, 13, 12, 17, 11, 7, 2, 1, 18, 17, 27, 21, 14, 7, 2, 1, 30, 29, 54, 44, 37, 17, 9, 2, 1, 46, 45, 92, 86, 75, 44, 22, 9, 2, 1, 78, 77, 178, ...
[ "nonn", "tabl" ]
A357236
[ 1, 0, 0, 0, 1, 0, 1, 0, 0, 1, 3, 0, 0, 2, 3, 3, 2, 0, 2, 10, 8, 3, 1, 8, 10, 17, 3, 8, 14, 40, 16, 18, 10, 37, 63, 55, 24, 40, 45, 79, 84, 82, 70, 170, 228, 166, 135, 86, 232, 295, 334, 309, 292, 228, 604, ...
[ "nonn" ]
A094390
[ 2, 4, 6, 8, 10, 13, 15, 17, 19, 21, 24, 26, 28, 30, 32, 35, 37, 39, 41, 43, 46, 48, 50, 52, 54, 57, 59, 61, 63, 65, 67, 70, 72, 74, 76, 78, 81, 83, 85, 87, 89, 92, 94, 96, 98, 100, 103, 105, 107, 109, 111, 114, 1...
[ "nonn" ]
A338501
[ 0, 0, 0, 0, 0, 1, 2, 0, 0, 1, 3, 3, 0, 0, 0, 0, 0, 4, 2, 2, 4, 4, 4, 0, 0, 3, 4, 0, 1, 2, 0, 0, 1, 5, 0, 0, 0, 4, 4, 3, 1, 1, 0, 2, 6, 6, 6, 6, 6, 2, 0, 0, 0, 7, 7, 6, 0, 0, 0, 1, 3, 3, 2, 4...
[ "nonn", "base" ]
A283821
[ 1, 1, 1, 1, 1, 1, 1, 1, 1, 8, 15, 134, 2143, 289304, 620267775, 179446568646374, 1.1130492404511773e+23, 1.9973286693341774e+37, 2.7789064479172088e+59 ]
[ "nonn" ]
A186672
[ 0, 6, 60, 640, 6239, 60228, 600196, 6000213, 60000231, 600000239, 6000000240 ]
[ "nonn", "base", "more" ]
A001259
[ 3, 5, 7, 17, 19, 37, 97, 113, 257, 401, 487, 631, 971, 1297, 1801, 19457, 22051, 28817, 65537, 157303, 160001 ]
[ "nonn", "fini", "full" ]
A388017
[ 4, 8, 10, 16, 20, 32, 44, 52, 64, 116, 128, 208, 212, 224, 256, 344, 424, 428, 448, 512, 628, 688, 724, 820, 832, 848, 850, 856, 896, 928, 936, 1024, 1044, 1448, 1556, 1640, 1656, 1664, 1744, 1792, 1844, 1944, 2048, 2064, 2092, ...
[ "nonn" ]
A208684
[ 10, 100, 282, 927, 3430, 11067, 34627, 111642, 356116, 1121500, 3542847, 11196360, 35283685, 111150345, 350234962, 1103073000, 3473204686, 10936009567, 34431544350, 108396961047, 341246282767, 1074267088938, 3381794658280 ]
[ "nonn" ]
A364410
[ 1, 0, 1, 4, 14, 52, 201, 800, 3260, 13536, 57068, 243664, 1051512, 4579088, 20097526, 88810872, 394811696, 1764477304, 7923087616, 35728412152, 161731039076, 734646128920, 3347600839252, 15298276784648, 70097391229500, 321974115549256, 1482242974320685 ]
[ "nonn" ]
A060922
[ 1, 3, 1, 4, 6, 1, 7, 17, 9, 1, 11, 38, 39, 12, 1, 18, 80, 120, 70, 15, 1, 29, 158, 315, 280, 110, 18, 1, 47, 303, 753, 905, 545, 159, 21, 1, 76, 566, 1687, 2568, 2120, 942, 217, 24, 1, 123, 1039, 3612, 6666, 7043, 43...
[ "nonn", "easy", "tabl" ]
A290062
[ 1, 10, 111, 1111, 11100, 111100, 1111110, 11111110, 111110111, 1111110111, 11111111000, 111111111000, 1111111111000, 11111111111000, 111111111101000, 1111111111101000, 11111111101110100, 111111111101110100, 1111111111110001200, 11111111111110000000 ]
[ "nonn", "easy" ]
A336641
[ 6, 24, 28, 96, 120, 150, 294, 384, 496, 1014, 1536, 3276, 3750, 3780, 6144, 8128, 14406, 20328, 24576, 32760, 93750, 98304, 171366, 306180, 393216, 705894, 1241460, 1572864, 2343750, 6291456, 16380000, 24800580, 25165824, 28960854, 30387840, 3355...
[ "nonn" ]
A042684
[ 29, 30, 59, 443, 502, 6969, 7471, 59266, 66737, 126003, 7374911, 7500914, 14875825, 111631689, 126507514, 1756229371, 1882736885, 14935387566, 16818124451, 31753512017, 1858521821437, 1890275333454, 3748797154891, 28131855417691, 31880652572582 ]
[ "nonn", "frac", "easy" ]
A332153
[ 3, 535, 55355, 5553555, 555535555, 55555355555, 5555553555555, 555555535555555, 55555555355555550, 5555555553555555000, 555555555535555500000, 5.555555555535555e+22, 5.555555555553555e+24, 5.555555555555355e+26, 5.555555555555536e+28, 5.555555555555554e+30 ]
[ "nonn", "base", "easy" ]
A078235
[ 7, 35, 525, 5775, 225225, 27252225, 73553755275, 52377555577572220, 7.553223322273553e+26 ]
[ "base", "more", "nonn" ]
A161759
[ 1, 2, 3, 4, 2, 5, 3, 6, 4, 14, 3, 5, 19, 4, 6, 21, 9, 5, 4, 40, 54, 6, 79, 5, 14, 7, 9, 69, 6, 5, 146, 74, 19, 7, 89, 6, 9, 21, 29, 14, 164, 7, 6, 99, 104, 230, 9, 188, 209, 7, 335, 529, 19, 139, 14, 329, ...
[ "nonn" ]
A027815
[ 252, 3234, 22176, 108108, 420420, 1387386, 4036032, 10618608, 25729704, 58198140, 124156032, 251839224, 488864376, 912964668, 1647455040, 2883046320, 4908043140, 8149451310, 13228094880, 21031510500, 32809156380, 50295355110, 75866394240, 112739346720 ]
[ "nonn", "easy" ]
A227214
[ 1, 6, 41, 281, 1721, 1926, 13201, 72241, 80646, 90481, 493921, 620166, 2963561, 3032401, 3788441, 4250681, 23145121, 29134601, 127288601, 141753606, 158630641, 177975881, 199691526, 870287321 ]
[ "nonn", "more" ]
A264914
[ 1, 1, 9, 90, 945, 10440, 121065, 1470855, 18688680, 247924425, 3428559573, 49353455856, 738477897552, 11471175099726, 184755890053173, 3081830366508444, 53182355345412136, 948482464405185800, 17465164002387665000, 331740754587283600000, 6.494261833979743e+21 ]
[ "nonn" ]
A180377
[ 64, 7203, 74568, 909780, 10723548 ]
[ "nonn" ]
A135731
[ 3, 6, 8, 12, 14, 18, 20, 24, 30, 32, 38, 42, 44, 48, 54, 60, 62, 68, 72, 74, 80, 84, 90, 98, 102, 104, 108, 110, 114, 128, 132, 138, 140, 150, 152, 158, 164, 168, 174, 180, 182, 192, 194, 198, 200, 212, 224, 228, 230, ...
[ "easy", "nonn" ]
A361096
[ 1, 1, -1, 1, 17, -339, 4999, -63587, 566145, 3549241, -405637489, 15518099961, -446235202799, 9617693853925, -75522664207017, -7341781870733099, 596513949276804000, -30104875035438797000, 1.144712508931072e+21, -2.738163920473933e+22 ]
[ "sign" ]
A049404
[ 1, 2, 1, 2, 6, 1, 0, 20, 12, 1, 0, 40, 80, 20, 1, 0, 40, 360, 220, 30, 1, 0, 0, 1120, 1680, 490, 42, 1, 0, 0, 2240, 9520, 5600, 952, 56, 1, 0, 0, 2240, 40320, 48720, 15120, 1680, 72, 1, 0, 0, 0, 123200, 332640, 18480...
[ "easy", "nonn", "tabl" ]
A000669
[ 1, 1, 2, 5, 12, 33, 90, 261, 766, 2312, 7068, 21965, 68954, 218751, 699534, 2253676, 7305788, 23816743, 78023602, 256738751, 848152864, 2811996972, 9353366564, 31204088381, 104384620070, 350064856815, 1176693361956, 3963752002320 ]
[ "nonn", "nice", "easy" ]
A143107
[ 0, 1, 1, 2, 4, 2, 4, 8, 4, 2, 24, 2 ]
[ "nonn", "more" ]
A069517
[ 1, 2, 0, 2, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2...
[ "easy", "nonn", "mult" ]
A360210
[ 1, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16 ]
[ "nonn", "more" ]
A034816
[ 9, 51, 63, 117, 123, 157, 183, 213, 217, 219, 257, 263, 321, 327, 333, 423, 441, 473, 541, 597, 621, 687, 693, 723, 777, 879, 909, 987, 1101, 1143, 1187, 1387, 1459, 1551, 1887, 2127, 2179, 2193, 2817, 3197, 3339, 3513, 3633, 4029...
[ "nonn", "base" ]
A227469
[ 1, 3, 20, 245, 4554, 115192, 3709992, 145597545, 6750522350, 361424043596, 21958844607336, 1493260499980119, 112400273159533800, 9279595605913516000, 833858283261973800000, 8.102730800381009e+22, 8.466793463341566e+24, 9.467765529672152e+26, 1.1281603206707365e+29 ]
[ "nonn" ]
A315167
[ 1, 6, 10, 14, 17, 22, 28, 31, 36, 42, 46, 52, 58, 62, 66, 63, 72, 78, 79, 88, 92, 98, 104, 110, 114, 118, 111, 122, 128, 125, 140, 144, 148, 156, 162, 166, 170, 159, 174, 178, 171, 190, 196, 200, 206, 214, 218, 222, 207,...
[ "nonn" ]
A379486
[ 1, 2, 4, 6, 14, 16, 18, 24, 26, 28, 40, 54, 62, 64, 66, 74, 86, 102, 114, 122, 134, 138, 146, 152, 162, 169, 174, 176, 182, 184, 186, 206, 222, 234, 254, 270, 280, 282, 289, 290, 302, 304, 306, 308, 314, 318, 326, 338, 3...
[ "nonn" ]
A376677
[ 1, 2, 11, 12, 21, 22, 112, 121, 122, 211, 212, 221, 1121, 1122, 1211, 1212, 1221, 2112, 2121, 2122, 2211, 2212, 11211, 11212, 11221, 12112, 12122, 12211, 12212, 21121, 21122, 21211, 21221, 22112, 22121, 22122, 112112, 112122, 112212, 1211...
[ "nonn", "base" ]
A163304
[ 858, 3139, 13142, 36807, 80098, 149003, 249534, 387727, 569642, 801363, 1088998, 1438679, 1856562, 2348827, 2921678, 3581343, 4334074, 5186147, 6143862, 7213543, 8401538, 9714219, 11157982, 12739247, 14464458, 16340083, 18372614, 20568567, 22934482, 25476923...
[ "nonn", "easy" ]
A360107
[ 1, 2, 3, 5, 7, 9, 11, 13, 15, 19, 21, 25, 27, 31, 41, 45, 49, 81, 85, 129, 133, 135, 139, 357, 361, 429, 431, 433, 435, 447, 451, 507, 511, 567, 569, 571, 573 ]
[ "nonn", "more" ]
A281181
[ 1, 1, 13, 493, 37369, 4732249, 901188997, 240798388357, 85948640603761, 39504564917358000, 22726779729476310000, 1.5998009117983994e+22, 1.352676585119023e+25, 1.3528070218935447e+28, 1.5795819619923465e+31, 2.1294937666865805e+34, 3.282850059754918e+37, 5.738592445640027e+40, 1....
[ "nonn" ]
A073307
[ 1, 2, 8, 18, 45, 128, 486, 1215, 1701, 2673, 3750, 5000, 8750, 13122, 13125, 13750, 16250, 16875, 20625, 21250, 23750, 24375, 31875, 32768, 32805, 35625, 45927, 48125, 56875, 72171, 74375, 83125, 85293, 89375, 111537, 116875, 130625, 138125, ...
[ "nonn" ]
A325709
[ 1, 2, 3, 4, 13, 6, 89, 8, 9, 26, 659, 12, 5443, 178, 39, 16, 49033, 18, 484037, 52, 267, 1318, 5222429, 24, 169, 10886, 27, 356, 61194647, 78, 774825383, 32, 1977, 98066, 1157, 36, 10552185239, 968074, 16329, 104, 153903050137, 534, ...
[ "nonn", "mult" ]
A014180
[ 1, 5, 109, 3533, 133501, 5629505, 254899765, 12129399245, 599084606845, 30455459491505, 1584249399505609, 83970120618566830, 4520585403820052500, 246592348286170630000, 1.3603606921687171e+22, 7.578083461399968e+23, 4.257566800455826e+25, 2.4100240126193433e+27 ]
[ "nonn", "easy" ]
A325220
[ 1, 2, 1, 16, 28, 1, 272, 1032, 270, 1, 7936, 52736, 36096, 2456, 1, 353792, 3646208, 4766048, 1035088, 22138, 1, 22368256, 330545664, 704357760, 319830400, 27426960, 199284, 1, 1903757312, 38188155904, 120536980224, 93989648000, 18598875760, 70281256...
[ "nonn", "tabl" ]
A143642
[ 1, 2, 3, 5, 7, 12, 19, 26, 45, 71, 97, 168, 265, 362, 627, 989, 1351, 2340, 3691, 5042, 8733, 13775, 18817, 32592, 51409, 70226, 121635, 191861, 262087, 453948, 716035, 978122, 1694157, 2672279, 3650401, 6322680, 9973081, 13623482, 23596563...
[ "nonn", "frac", "easy" ]
A145633
[ 351, 356629, 100451221, 237667596101, 361492413720217, 672014397106339300, 113570433110971730000, 7.677361278301689e+21, 7.352352984186918e+24, 1.1804202716112096e+29, 6.649700863409814e+30 ]
[ "frac", "nonn" ]
A252641
[ 572, 1013, 1758, 3162, 6598, 13038, 24852, 51396, 102832, 196692, 406087, 815173, 1564506, 3229898, 6492686, 12499511, 25777034, 51870487, 100142925, 206228256, 415426219, 804167670, 1653389401, 3334113495, 6470363703, 13279927241 ]
[ "nonn" ]
A086159
[ 1, 1, 1, 2, 2, 2, 4, 4, 4, 6, 6, 6, 9, 9, 9, 12, 12, 12, 16, 16, 16, 20, 20, 20, 25, 25, 25, 30, 30, 30, 36, 36, 36, 42, 42, 42, 49, 49, 49, 56, 56, 56, 64, 64, 64, 72, 72, 72, 81, 81, 81, 90, 90, 90, 100, ...
[ "nonn" ]
A217993
[ 2, 2, 2, 2, 74, 112, 2162, 63738, 13220, 54808, 3656570, 6992032, 125440, 103859114, 56414914, 87888966 ]
[ "nonn", "hard", "more" ]
A172235
[ 1, 3, 5, 7, 15, 23, 25, 39, 53, 67, 75, 89, 103, 111, 131, 157, 177, 197, 211, 225, 245, 265, 285, 311, 313, 321, 353, 379, 405, 449, 493, 543, 587, 625, 675, 701, 727, 765, 791, 823, 855, 875, 901, 921, 959 ]
[ "nonn" ]
A238870
[ 1, 1, 0, 1, 1, 0, 2, 2, 1, 4, 4, 4, 9, 10, 11, 21, 25, 30, 51, 62, 80, 125, 157, 208, 309, 399, 536, 772, 1013, 1373, 1938, 2574, 3503, 4882, 6540, 8918, 12329, 16611, 22672, 31183, 42182, 57588, 78952, 107092, 146202, 200037,...
[ "nonn" ]
A309145
[ 28, 52, 59, 70, 76, 101, 103, 108, 115, 122, 130, 139, 148, 164, 172, 180, 181, 190, 199, 208, 210, 220, 222, 223, 228, 268, 270, 284, 314, 316, 327, 328, 339, 340, 364, 376, 388, 398, 403, 420, 427, 430, 436, 443, 446, 448, ...
[ "nonn" ]
A216558
[ 3, 4, 11, 13, 23, 47, 83, 131, 359, 431, 433, 5387, 9311, 25561, 30757, 35999, 37511, 50833, 81839, 130021, 148091, 201107, 397379, 590041, 593689, 1285607, 1636007, 1803059, 1968721 ]
[ "nonn" ]
A297262
[ 1, 2, 3, 4, 5, 6, 8, 16, 24, 32, 40, 48, 50, 57, 64, 71, 78, 85, 92, 100, 107, 114, 121, 128, 135, 142, 150, 157, 164, 171, 178, 185, 192, 200, 207, 214, 221, 228, 235, 242, 250, 257, 264, 271, 278, 285, 292, 300, 307, ...
[ "nonn", "base", "easy" ]
A283811
[ 1, 32, 454, 4718, 41506, 329462, 2441314, 17234438, 117437746, 779305142, 5067707074, 32440729958, 205120773586, 1284333040022, 7978977787234, 49258610238278, 302555048903026, 1850666770922102, 11281963755617794, 68586728901231400, 416015651355490050, 2518652552044759600 ]
[ "nonn", "easy" ]
A241263
[ 1, 8, 9, 16, 17, 24, 25, 32, 33, 40, 41, 48, 49, 56, 57, 64, 65, 72, 73, 80, 81, 88, 89, 96, 97, 104, 105, 112, 113, 120, 122, 125, 129, 134, 140, 147 ]
[ "nonn", "easy", "fini", "full" ]
A320376
[ 6, 0, 7, 7, 15, 15, 38, 39, 67, 84, 131, 160, 242, 293, 421, 537, 730, 912, 1234, 1533, 2021, 2525, 3269, 4053, 5185, 6394, 8080, 9948, 12425, 15219, 18893, 23006, 28319, 34379, 42024, 50788, 61736, 74279, 89795, 107674, 129483, 15466...
[ "nonn" ]
A210488
[ 3, 4, 2, 20, 60, 92, 246, 752, 1289, 2084, 3383 ]
[ "nonn", "hard" ]
A251115
[ 2500, 64660, 1494029, 27945953, 480842776, 7521121248, 111353209662, 1565216316524, 21222352910300, 278794962294706, 3575143198989419, 44910526954802560, 554888528859073540, 6760076062454652000 ]
[ "nonn" ]
A136549
[ 1, -1, 3, -3, -5, -3, 0, 7, 9, 5, 0, -9, 0, 0, -15, 5, 14, -9, -22, 15, 0, 0, -34, 21, 25, 0, 27, 0, 0, 15, 2, -33, 0, -14, 0, -27, 0, 22, 0, -35, 0, 0, 0, 0, -45, 34, 14, 15, 49, -25, 42, 0, 86, -27, 0, 0,...
[ "sign", "mult" ]
A233616
[ 111082137228, 460194589763836, 1894224161834632700, 7.793338521299515e+21, 3.205873376928696e+25, 1.318754206835023e+29, 5.424759458245776e+32, 2.2315006348327878e+36 ]
[ "nonn" ]
A099527
[ 1, 2, 3, 4, 12, 1, 8, 36, 13, 6, 16, 96, 66, 63, 1, 32, 240, 248, 360, 33, 9, 64, 576, 800, 1560, 321, 180, 1, 128, 1344, 2352, 5760, 1970, 1683, 62, 12, 256, 3072, 6496, 19152, 9420, 10836, 985, 390, 1, 512, 6912, 17152, ...
[ "nonn", "tabl" ]
A054541
[ 2, 1, 2, 2, 4, 2, 4, 2, 4, 6, 2, 6, 4, 2, 4, 6, 6, 2, 6, 4, 2, 6, 4, 6, 8, 4, 2, 4, 2, 4, 14, 4, 6, 2, 10, 2, 6, 6, 4, 6, 6, 2, 10, 2, 4, 2, 12, 12, 4, 2, 4, 6, 2, 10, 6, 6, 6, 2, 6, 4, 2, 10, ...
[ "nonn" ]
A228819
[ 2, 0, 7, 6 ]
[ "nonn", "cons", "hard", "more" ]
A296953
[ 0, 1, 4, 10, 22, 46, 94, 190, 382, 766, 1534, 3070, 6142, 12286, 24574, 49150, 98302, 196606, 393214, 786430, 1572862, 3145726, 6291454, 12582910, 25165822, 50331646, 100663294, 201326590, 402653182, 805306366, 1610612734, 3221225470, 6442450942, 128...
[ "nonn", "easy" ]
A052074
[ 529, 6889, 12769, 1261129, 40001200009, 107667328129, 145381301521, 510649971459777340, 2.4172491655282242e+25 ]
[ "nonn", "base", "more", "nice" ]
A173687
[ 0, 1, 14, 15, 17, 22, 40, 41, 45, 50, 51, 54, 70, 71, 102, 112, 120, 121, 123, 132, 144, 156, 165, 200, 201, 203, 210, 211, 213, 230, 231, 302, 312, 320, 321, 334, 343, 404, 414, 433, 440, 441, 457, 475, 506, 516, 547, 560...
[ "nonn", "base" ]
A286388
[ 0, 1, 4, 3, 2, 6, 7, 10, 9, 15, 4, 21, 2, 28, 41, 36, 2, 45, 4, 55, 35, 66, 7, 78, 20, 91, 64, 105, 2, 120, 16, 136, 77, 153, 43, 171, 2, 190, 133, 210, 2, 231, 4, 253, 135, 276, 11, 300, 35, 325, 188, 351, 2, ...
[ "nonn" ]
A274223
[ 1, 2, 12, 32400, 71280, 5864400, 34574400, 203332046400 ]
[ "nonn", "more" ]
A118701
[ 4, 3, 4, 9, 5, 7, 5, 9, 17, 27, 23, 25, 9, 64, 11, 19, 16, 27, 47, 13, 29, 7, 27, 11, 29, 19, 25, 103, 107, 11, 81, 137, 23, 13, 49, 17, 43, 25, 59, 13, 128, 41, 71, 43, 31, 11, 17, 121, 19, 31, 67, 81, 139, 28...
[ "nonn" ]
A169646
[ 1, 1, 2, 0, 3, 2, 5, 0, 0, 3, 7, 0, 8, 5, 6, 0, 11, 0, 12, 0, 8, 9, 15, 0, 0, 10, 0, 0, 17, 8, 19, 0, 13, 13, 15, 0, 23, 15, 17, 0, 26, 11, 28, 0, 0, 18, 30, 0, 0, 0, 21, 0, 32, 0, 25, 0, 23, 23, 36, ...
[ "nonn" ]
A054916
[ 1, 0, 0, 0, 1, 2, 2, 12, 18, 158, 532, 18956, 389418, 50314722, 2942198334, 1698517035792, 442786966113484, 649978211591577700, 429712868499646400000, 2.886054228478618e+24, 8.835589045148342e+27, 1.5292927936492722e+32, 1.2079325093910697e+36, 9.916260984856152e+40 ]
[ "nonn", "hard" ]
A388652
[ 1, 2, 6, 3, 12, 4, 18, 9, 36, 20, 5, 10, 14, 7, 21, 15, 24, 8, 40, 22, 11, 33, 30, 26, 13, 39, 42, 28, 34, 17, 51, 45, 25, 50, 35, 55, 44, 38, 19, 57, 48, 16, 80, 46, 23, 69, 54, 27, 72, 52, 56, 58, 29, 87, 6...
[ "nonn" ]
A224695
[ 561, 645, 1905, 2465, 4369, 4371, 23001, 25761, 60701, 87249, 158369, 181901, 206601, 212421, 253241, 280601, 332949, 348161, 513629, 580337, 587861, 656601, 831405, 1207361, 1275681, 1472505, 1489665, 1678541, 1735841, 1815465, 1909001, 2113665, 22906...
[ "nonn" ]
A200543
[ 1, 1, 2, 12, 35, 117, 408, 1364, 4617, 15645, 52882, 178920, 605331, 2047705, 6927424, 23435384, 79281057, 268206185, 907335090, 3069491988, 10384017875, 35128880685, 118840150776, 402033352684, 1360069088841, 4601080767717, 15565344749410, 52657184101648, 178...
[ "nonn", "easy" ]
A341773
[ 1, 0, 0, 1, 0, 0, 1, 0, 0, 2, 0, 0, 2, 0, 0, 2, 0, 0, 3, 1, 0, 3, 1, 0, 3, 1, 0, 4, 2, 0, 4, 2, 0, 4, 3, 0, 5, 4, 1, 5, 4, 1, 5, 5, 1, 6, 6, 2, 6, 6, 2, 6, 7, 3, 7, 9, 4, 8, 9, 4, 8, 10, 5, ...
[ "nonn" ]
A148147
[ 1, 1, 2, 4, 11, 29, 94, 286, 979, 3248, 11681, 40909, 152740, 556090, 2129094, 7997403, 31212056, 119998066, 476046850, 1863806284, 7493408222, 29788758672, 121056229310, 487416498090, 1999078630202, 8134473990239, 33632444233016, 138095708826158, 574927241905...
[ "nonn", "walk" ]
A386985
[ 2, 2, 4, 2, 2, 373, 2, 2, 82, 2, 3 ]
[ "nonn", "base", "hard", "more" ]
A327093
[ 2, 3, 7, 5, 11, 13, 15, 10, 17, 19, 23, 25, 27, 21, 40, 16, 35, 36, 39, 37, 58, 33, 47, 50, 52, 43, 45, 34, 59, 78, 63, 31, 76, 55, 82, 67, 75, 57, 99, 56, 83, 112, 87, 61, 126, 69, 95, 92, 97, 96, 133, 71, 107, ...
[ "nonn" ]
A235252
[ 744, 2592, 8328, 30300, 102000, 382036, 1330480, 5080484, 18163048, 70306060, 256589296, 1003233148, 3722094784, 14665343468, 55134285800, 218558955780, 830555412752, 3308709067460, 12685331083184, 50741901100676 ]
[ "nonn" ]
A342345
[ 3, 33, 363, 36663, 6306036, 63066666036, 6304963866683694000, 6.304963866689999e+30 ]
[ "nonn", "base", "more" ]
A034341
[ 1, 2, 4, 8, 16, 36, 80, 193, 497, 1392, 4282, 14805, 57875, 258894, 1321280, 7570495, 47305333, 311742256, 2103025726, 14206632939, 94726167427, 618051904983, 3927156178649, 24243834619157, 145277300343585, 844969890205372, 4772180415241078, 26189419064610812, ...
[ "nonn" ]
A216222
[ 1, 1, 2, 1, 1, 2, 3, 4, 3, 3, 3, 3, 6, 7, 8, 10, 9, 9, 9, 9, 11, 13, 16, 20, 22, 25, 28, 27, 28, 29, 30, 32, 35, 40, 45, 53, 60, 67, 73, 79, 85, 87, 92, 95, 98, 105, 111, 120, 132, 145, 160, 178, 196, 212, 23...
[ "nonn" ]
A172421
[ 128, 256, 512, 1024, 2048, 2187, 4096, 6561, 8192, 16384, 19683, 32768, 49152, 52488, 55296, 59049, 62208, 65536, 69984, 73728, 78125, 78732, 82944, 93312, 98304, 104976, 110592, 118098, 124416, 131072, 139968, 147456, 157464, 165888, 177147, 186...
[ "nonn" ]