id
stringlengths
7
11
seq
listlengths
1
347
keywords
listlengths
1
8
A202854
[ 1, 2, 5, 6, 18, 23, 26, 41, 54, 78, 103, 122, 162, 167, 202, 234, 283, 338, 366, 419, 486, 502, 547, 606, 643, 702, 794, 1009, 1014, 1093, 1098, 1346, 1458, 1506, 1543, 1586, 1597, 1818, 1906, 1999, 2106, 2371, 2382, 2462, 2626, 2719, 2962 ]
[ "nonn" ]
A091736
[ 1, -1, 1, -1, 1, -25, 7, -11, 5, -4001, 107, -6721, 187, -2048761, 44143, -3951137, 43663, -2300524417, 2591885, -107137061, 5512427, -4571262603161, 81607991, -10073849103649, 136193843 ]
[ "sign", "frac", "uned", "obsc" ]
A184264
[ 3, 7, 14, 40, 108, 362, 1182, 4150, 14602, 52588, 190746, 699600, 2581428, 9588742, 35792568, 134223910, 505294128, 1908896442, 7233642930, 27487869472, 104715443852, 399822696082, 1529755490574, 5864063066500, 22517998808028, 86607689013412, 333599974893066 ]
[ "nonn" ]
A105842
[ 0, 55, 9064, 1480479, 3140319, 512899624, 83770465015, 13681996386240, 29021570410560, 4740012143979895, 774172961946305700, 126443510439085950000, 268205687063091970000, 4.3805286749779805e+22, 7.154595296776971e+24, 1.1685400931868222e+27 ]
[ "nonn", "easy" ]
A343788
[ 1, 1, 3, 13, 75, 540, 4671, 47125, 543371, 7048453, 101589591, 1610634433, 27856938387, 521953586233, 10532102378983, 227699187663961, 5250934660206219, 128659152359922000, 3337861722359261700, 91406502629924950000, 2.634888477782107e+21, 7.97511002513465e+22 ]
[ "nonn" ]
A073864
[ 0, 11, 0, 1021, 10103, 0, 1000033, 10000223, 0, 1000000009, 10000000019, 0, 1000000000039, 10000000000283, 0, 1000000000000159, 10000000000000080, 0, 1000000000000000400, 10000000000000000000, 0, 1e+21 ]
[ "base", "nonn" ]
A092433
[ 7, 14, 17, 21, 27, 28, 35, 37, 42, 47, 49, 56, 57, 63, 67, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 84, 87, 91, 97, 98, 105, 107, 112, 117, 119, 126, 127, 133, 137, 140, 147, 154, 157, 161, 167, 168, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 182, 187, 189, 196 ]
[ "base", "easy", "nonn" ]
A053347
[ 1, 10, 54, 210, 660, 1782, 4290, 9438, 19305, 37180, 68068, 119340, 201552, 329460, 523260, 810084, 1225785, 1817046, 2643850, 3782350, 5328180, 7400250, 10145070, 13741650, 18407025, 24402456, 32040360, 41692024, 53796160 ]
[ "easy", "nonn" ]
A024073
[ 1, 5, -2012, -176931, -4193008, -48820349, -362750400, -1977046807, -8588254976, -31370981913, -99939533824, -284948873555, -740831588352, -1779099700021, -3971201005568, -8179570874799, -14771076136960 ]
[ "sign", "easy" ]
A037123
[ 0, 1, 3, 6, 10, 15, 21, 28, 36, 45, 46, 48, 51, 55, 60, 66, 73, 81, 90, 100, 102, 105, 109, 114, 120, 127, 135, 144, 154, 165, 168, 172, 177, 183, 190, 198, 207, 217, 228, 240, 244, 249, 255, 262, 270, 279, 289, 300, 312, 325, 330, 336, 343, 351, 360, 370, 381 ]
[ "nonn", "base", "easy" ]
A121562
[ 1, 7, 2, 4, 2, 4, 2, 2, 4, 4, 4, 2, 2, 4, 2, 2, 4, 2, 4, 4, 4, 2, 2, 4, 4, 2, 2, 2, 4, 2, 6, 2, 2, 4, 2, 4, 2, 2, 7, 2, 3, 2, 2, 2, 4, 4, 7, 1, 4, 4, 2, 4, 2, 2, 2, 4, 2, 4, 4, 7, 1, 4, 2, 4, 7, 2, 1, 2, 7, 2, 1, 2, 2, 4, 2, 2, 4, 4, 7, 1, 2, 4, 2, 4, 2, 4, 4, 4, 2, 2, 4, 7, 1, 2, 7, 2, 3, 2, 2, 4, 2, 2, 7, 2, 3 ]
[ "easy", "nonn" ]
A023217
[ 3, 7, 13, 19, 31, 61, 67, 73, 79, 97, 109, 151, 157, 181, 193, 199, 223, 313, 331, 349, 373, 397, 457, 487, 523, 541, 571, 577, 607, 613, 643, 661, 691, 709, 727, 739, 769, 811, 859, 919, 991, 997, 1021, 1033, 1039, 1069, 1087, 1129, 1171, 1201, 1213, 1249, 1279, 1321 ]
[ "nonn", "easy" ]
A309469
[ 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 7, 11, 28, 41, 79, 115, 191, 255, 389, 517, 752, 976, 1335, 1707, 2289, 2870, 3737, 4639, 5904, 7246, 9088, 11040, 13635, 16416, 19984, 23856, 28776, 34054, 40667, 47796, 56553, 66043, 77527, 89992, 104963, 121151, 140303 ]
[ "nonn" ]
A034036
[ 0, 1, 2, 4, 8, 9, 11, 14, 16, 18, 22, 23, 25, 28, 32, 36, 37, 43, 44, 46, 49, 50, 53, 56, 58, 64, 71, 72, 74, 77, 79, 81, 86, 88, 92, 98, 99, 100, 106, 107, 109, 112, 116, 121, 126, 127, 128, 134, 137, 142, 144, 148, 149, 151, 154, 158, 161, 162, 163, 169 ]
[ "nonn" ]
A153912
[ 1, 2, 28586, 195384, 2093119, 20428045, 317866834, 4492197059, 100898111116, 2073132268053, 67489432729042, 2005814360075163, 94662265499676800, 4075394325398277600, 278524123602639200000, 1.7377022786797474e+22 ]
[ "nonn" ]
A125567
[ 3, 6, 10, 135, 186, 542, 1162, 1726, 4179, 13910, 14514, 78915, 170026 ]
[ "hard", "more", "nonn" ]
A115929
[ 3942, 4392, 5796, 7956 ]
[ "nonn", "base", "fini", "full" ]
A322727
[ 1, 2, 25, 526, 15554, 590575, 27338911, 1492079652, 93776123520, 6669479907548, 529549414923174, 46432923079132504, 4456442206987049000, 464691980829431900000, 5.231390557197606e+22, 6.323967971227649e+24, 8.170290351996921e+26, 1.1234860564711365e+29, 1.638309109320541e+31, 2.5252937495725958e+33 ]
[ "nonn" ]
A238837
[ 0, 1, 1, 2, 3, 1, 2, 3, 5, 4, 5, 1, 2, 3, 3, 4, 7, 7, 8, 5, 7, 7, 8, 1, 2, 3, 3, 4, 5, 4, 5, 5, 9, 10, 11, 9, 12, 11, 13, 6, 9, 10, 11, 9, 12, 11, 13, 1, 2, 3, 3, 4, 5, 4, 5, 5, 7, 7, 8, 5, 7, 7, 8, 6, 11, 13, 14, 13, 17, 15, 18, 11, 16, 17, 19, 14, 19, 18, 21 ]
[ "nonn", "frac", "look" ]
A100451
[ 0, 0, 7, 14, 21, 32, 45, 60, 77, 96, 117, 140, 165, 192, 221, 252, 285, 320, 357, 396, 437, 480, 525, 572, 621, 672, 725, 780, 837, 896, 957, 1020, 1085, 1152, 1221, 1292, 1365, 1440, 1517, 1596, 1677, 1760, 1845, 1932, 2021, 2112, 2205, 2300, 2397, 2496, 2597, 2700 ]
[ "nonn", "easy" ]
A246124
[ 1, 1, 9, 776, 16641494, 66554437475947, 1.5541527380770096e+22, 1.7419900248906183e+32, 9.576331459359654e+43, 2.6622117201949015e+57 ]
[ "nonn" ]
A382775
[ 6, 1, 8, 32, 64, 128, 256, 6144, 512, 27648, 1024, 73728, 2048, 147456, 165888, 4096, 248832, 196608, 8192, 497664, 1119744, 393216, 16384, 2239488 ]
[ "nonn", "more" ]
A040060
[ 2, 3, 5, 11, 17, 19, 23, 29, 37, 41, 43, 47, 53, 59, 61, 71, 83, 89, 101, 107, 113, 131, 137, 149, 167, 173, 179, 191, 193, 197, 199, 211, 227, 229, 233, 239, 251, 257, 263, 269, 281, 293, 311, 317, 337, 347, 349 ]
[ "nonn", "easy" ]
A057039
[ 2, 3, 1, 3, 1, 4, 2, 6, 4, 2, 7, 5, 3, 1, 7, 5, 3, 1, 8, 6, 4, 2, 10, 8, 6, 4, 2, 11, 9, 7, 5, 3, 1, 11, 9, 7, 5, 3, 1, 12, 10, 8, 6, 4, 2, 14, 12, 10, 8, 6, 4, 2, 15, 13, 11, 9, 7, 5, 3, 1, 15, 13, 11, 9, 7, 5, 3, 1, 16, 14, 12, 10, 8, 6, 4, 2, 18, 16, 14 ]
[ "nonn" ]
A051036
[ 1, 1, 1, 1, 4, 5, 6, 7, 28, 36, 45, 55, 220, 286, 364, 455, 1820, 2380, 3060, 3876, 15504, 20349, 26334, 33649, 134596, 177100, 230230, 296010, 1184040, 1560780, 2035800, 2629575, 10518300, 13884156, 18156204, 23535820, 94143280, 124403620 ]
[ "nonn", "easy" ]
A090815
[ 30, 42, 66, 6, 138, 6, 6, 6, 282, 354, 6, 6, 498, 6, 6, 642, 6, 6, 6, 6, 6, 6, 1002, 1074, 6, 6, 6, 6, 6, 1362, 6, 1578, 6, 6, 6, 6, 6, 6, 6, 2082, 2154, 6, 2298, 6, 6, 6, 6, 6, 6, 6, 2802, 2874, 6, 3018, 6, 6, 6, 6, 6, 3378, 6, 3522, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4314, 6, 6, 6, 6, 6, 6, 6 ]
[ "nonn" ]
A353813
[ 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0 ]
[ "nonn" ]
A317875
[ 1, 1, 3, 9, 30, 102, 369, 1362, 5181, 20064, 79035, 315366, 1272789, 5185080, 21296196, 88083993, 366584253, 1533953100, 6449904138, 27238006971, 115475933202, 491293053093, 2096930378415, 8976370298886, 38528771056425, 165784567505325 ]
[ "nonn" ]
A088814
[ 1, 3, 1, 13, 9, 1, 73, 79, 18, 1, 501, 755, 265, 30, 1, 4051, 7981, 3840, 665, 45, 1, 37633, 93135, 57631, 13580, 1400, 63, 1, 394353, 1192591, 911582, 274141, 38290, 2618, 84, 1, 4596553, 16645431, 15285313, 5633922, 999831, 92358, 4494, 108, 1, 58941091 ]
[ "nonn", "tabl" ]
A182136
[ 1, 3, 5, 7, 10, 12, 15, 18, 21 ]
[ "nonn", "more" ]
A261749
[ 206, 224, 314, 1799, 2006, 11087, 13364, 15839, 17153, 17324, 20006, 22184, 22706, 24524, 24542, 40031, 40247, 45314, 47069, 48824, 55556, 61694, 64691, 70559, 71351, 89774, 90224, 102374, 108251, 112292, 129824, 132506, 137987, 151757, 154295, 157706, 162089, 167273, 170324, 171557, 175031 ]
[ "nonn", "base", "easy" ]
A119477
[ 1, 2, 4, 3, 6, 5, 5, 4, 8, 7, 7, 6, 7, 6, 6, 5, 10, 9, 9, 8, 9, 8, 8, 7, 9, 8, 8, 7, 8, 7, 7, 6, 12, 11, 11, 10, 11, 10, 10, 9, 11, 10, 10, 9, 10, 9, 9, 8, 11, 10, 10, 9, 10, 9, 9, 8, 10, 9, 9, 8, 9, 8, 8, 7, 14, 13, 13, 12, 13, 12, 12, 11, 13, 12, 12, 11, 12, 11, 11, 10, 13, 12, 12, 11, 12, 11 ]
[ "nonn" ]
A277215
[ 0, 26, 6, 14, 30, 1214, 1662, 254, 510, 1022, 2046, 28670, 40958, 180222, 32766, 65534, 131070, 1835006, 5767166, 1048574, 2097150, 4194302, 8388606, 16777214, 33554430, 469762046, 671088638, 268435454, 536870910, 7516192766, 2147483646, 4294967294, 8589934590, 17179869182, 34359738366, 755914244094 ]
[ "nonn" ]
A070986
[ 1, 2, 5, 9, 14, 10, 15, 16, 14, 20, 22, 19, 33, 25, 27, 31, 41, 33, 52, 47, 36, 54, 38, 56, 50, 56, 65, 68, 81, 76, 77, 84, 75, 80, 88, 76, 90, 89, 98, 89, 113, 100, 110, 101, 104, 103, 121, 122, 131, 121, 131, 127, 124, 134, 127, 132, 143, 131, 143, 144, 161, 141 ]
[ "easy", "nonn" ]
A315040
[ 1, 5, 9, 15, 19, 28, 30, 40, 43, 47, 53, 57, 68, 65, 77, 77, 81, 90, 92, 108, 103, 115, 115, 119, 130, 127, 145, 137, 149, 152, 154, 170, 165, 183, 175, 187, 192, 189, 207, 199, 217, 212, 222, 232, 227, 245, 237, 255, 252, 257 ]
[ "nonn" ]
A300852
[ 0, 2, 3, -2, 5, -1, 7, -2, 3, -3, 11, -5, 13, -5, 8, -2, 17, -1, 19, -7, 10, -9, 23, -5, 5, -11, 3, -9, 29, -6, 31, -2, 14, -15, 12, -5, 37, -17, 16, -7, 41, -8, 43, -13, 8, -21, 47, -5, 7, -3, 20, -15, 53, -1, 16, -9, 22, -27, 59, -10, 61, -29, 10, -2, 18, -12, 67, -19, 26, -10, 71, -5, 73, -35, 8 ]
[ "sign", "easy" ]
A039853
[ 1, 2, 3, 4, 5, 7, 9, 12, 15, 18, 23, 29, 35, 43, 51, 62, 74, 89, 105, 124, 146, 172, 201, 235, 272, 316, 366, 423, 486, 559, 640, 734, 838, 955, 1086, 1235, 1400, 1587, 1793, 2025, 2282, 2572, 2891, 3248, 3642 ]
[ "nonn" ]
A332309
[ 1, 1, 1, 2, 1, 3, 4, 9, 9, 6, 15, 17, 38, 29, 53, 70, 65, 91, 150, 229, 277, 236, 439, 489, 514, 897, 993, 1632, 1521, 2339, 2972, 3257, 4121, 5992, 5303, 7729, 10932, 15157, 17653, 18398, 26305, 31683, 34408, 51885, 58173, 61098, 90519, 101249, 143402, 156905 ]
[ "nonn" ]
A094967
[ 1, 1, 2, 2, 5, 5, 13, 13, 34, 34, 89, 89, 233, 233, 610, 610, 1597, 1597, 4181, 4181, 10946, 10946, 28657, 28657, 75025, 75025, 196418, 196418, 514229, 514229, 1346269, 1346269, 3524578, 3524578, 9227465, 9227465, 24157817, 24157817, 63245986, 63245986, 165580141, 165580141 ]
[ "easy", "nonn" ]
A338786
[ 1, 4, 24, 36, 48, 180, 240, 720, 840, 1260, 1680, 10080, 15120, 25200, 27720, 110880, 166320, 277200, 332640, 554400, 665280, 2162160, 3603600, 7207200, 8648640, 10810800, 36756720, 61261200, 73513440, 122522400, 147026880, 183783600, 698377680, 735134400, 1102701600 ]
[ "nonn", "fini", "full" ]
A080938
[ 1, 1, 2, 5, 14, 42, 132, 429, 1429, 4846, 16645, 57686, 201158, 704420, 2473785, 8704089, 30664890, 108126325, 381478030, 1346396146, 4753200932, 16783118309, 59266297613, 209302921830, 739203970773, 2610763825782, 9221050139566, 32568630376132 ]
[ "nonn", "easy" ]
A068602
[ 1, 1, 3, 8, 23, 54, 137, 297, 659, 1355, 2765, 5332, 10315, 19040, 34917, 62302, 110129, 190065, 325844, 547683, 913936, 1502371, 2450281, 3945459, 6312470, 9986624, 15696792, 24445887, 37838409, 58085458, 88678438, 134386804, 202593273, 303451589, 452267587 ]
[ "nonn" ]
A015792
[ 12, 126, 152, 216, 245, 392, 490, 63872, 259856, 16750592, 4294541312 ]
[ "nonn" ]
A116021
[ 2, 4, 14, 27, 30, 65, 80, 113, 174, 332, 483, 498, 547, 684, 734, 737, 761, 944, 1693, 1855, 2204, 3358, 3461, 3647, 3787, 3908, 4180, 6144, 6915, 7638, 7763, 10249, 10676, 12235, 13359, 14038, 16002, 19736, 21148, 23392, 23899, 24295, 24663 ]
[ "nonn" ]
A366311
[ 1, 1, 1, 1, 2, 2, 3, 2, 4, 3, 3, 4, 2, 3, 4, 4, 2, 3, 3, 4, 2, 3, 4, 4, 2, 2, 2, 5, 3, 2, 2, 2, 4, 5, 3, 2, 4, 1, 1, 5, 4, 1, 1, 1, 5, 5, 6, 1, 1, 2, 1, 5, 4, 1, 1, 3, 3, 1, 5, 5, 3, 2, 1, 3, 3, 1, 4, 5, 1, 2, 4, 3, 1, 2, 3, 5, 1, 1, 3, 3, 4, 1, 3, 6, 4, 1, 1 ]
[ "nonn" ]
A114995
[ 2, 5, 9, 10, 13, 14, 22, 25, 50, 66, 125, 250, 293, 314, 349, 1622, 1642, 2937, 2966, 3841, 4298, 4898, 5270 ]
[ "nonn" ]
A028134
[ 1, 29, 543, 8401, 117383, 1545873, 19643191, 244174337, 2994192135, 36408715057, 440432748119, 5310970152033, 63918578839207, 768370553038481, 9230114440859128, 110830456328561090, 1330457511950281700, 15968985141074820000, 191652591219028920000 ]
[ "nonn", "easy" ]
A050243
[ 1, 1, 3, 6, 12, 23, 44, 84, 158, 297, 561, 1056, 1989, 3746, 7056, 13287, 25023, 47125, 88746, 167127, 314735, 592710, 1116193, 2102019, 3958531, 7454720, 14038755, 26437833, 49787820, 93760597, 176570285, 332517781, 626198652, 1179259497 ]
[ "nonn", "easy" ]
A039521
[ 34, 122, 178, 266, 298, 310, 334, 346, 358, 370, 382, 394, 406, 408, 409, 411, 412, 413, 414, 415, 416, 417, 419, 430, 466, 554, 610, 698, 754, 842, 898, 986, 1042, 1130, 1186, 1274, 1330, 1418, 1442, 1454, 1464, 1465, 1467, 1468, 1469, 1470 ]
[ "nonn", "base", "easy" ]
A051089
[ 2, 3, 19, 43, 59, 67, 83, 107, 139, 163, 179, 227, 251, 257, 283, 307, 337, 347, 379, 419, 443, 467, 499, 523, 547, 563, 571, 587, 617, 619, 643, 659, 683, 739, 787, 827, 859, 883, 907, 947, 971, 1019, 1033, 1049, 1097, 1123, 1163, 1187, 1193, 1217, 1249, 1259, 1283, 1307, 1427, 1459, 1483, 1499, 1523 ]
[ "nonn", "easy" ]
A349228
[ 1, 2, 4, 8, 12, 6, 3, 5, 10, 20, 16, 24, 36, 9, 15, 25, 50, 30, 18, 27, 45, 60, 40, 32, 48, 72, 54, 63, 21, 7, 11, 22, 44, 28, 14, 35, 55, 110, 66, 42, 84, 56, 64, 80, 120, 75, 90, 150, 180, 210, 126, 105, 135, 225, 270, 240, 96, 112, 70, 140, 100, 160, 200 ]
[ "nonn" ]
A042895
[ 1, 3, 7, 38, 45, 218, 263, 1533, 3329, 11520, 717569, 2164227, 5046023, 27394342, 32440365, 157155802, 189596167, 1105136637, 2399869441, 8304744960, 517294056961, 1560186915843, 3637667888647, 19748526359078, 23386194247725, 113293303349978, 136679497597703 ]
[ "nonn", "frac", "easy" ]
A225604
[ 1, 1, 10, 1056, 1300253, 16436676927, 2026538428535847, 2.377041996570919e+21, 2.6137381916593226e+28, 2.668615348740646e+36, 2.513426521807432e+45, 2.1735453667359385e+55 ]
[ "nonn" ]
A254501
[ 0, 3, 20, 38, 35, 213, 1122, 3415, 10214, 32430, 145197, 351679, 666779, 813843, 3765934 ]
[ "nonn", "base", "more" ]
A255913
[ 2, 3, 5, 2, 2, 3, 0, 1, 5, 3, 9, 1, 5, 8, 0, 7, 6, 3, 4, 8, 5, 2, 7, 7, 2, 5, 1, 2, 1, 1, 7, 5, 4, 1, 5, 8, 0, 7, 3, 9, 2, 1, 5, 4, 2, 4, 8, 8, 0, 2, 4, 3, 0, 8, 9, 2, 3, 5, 7, 8, 2, 9, 7, 7, 4, 2, 8, 1, 3, 7, 8, 6, 8, 5, 9, 3, 7, 7, 0, 4, 8, 9, 3, 4, 0, 0, 4, 6, 7, 7, 6, 4, 0, 0, 0, 9, 4, 9, 8, 3, 6, 4, 7, 1, 4, 2, 4, 1 ]
[ "nonn", "cons", "easy" ]
A078945
[ 1, 5, 29, 189, 1357, 10589, 88909, 797085, 7583373, 76179037, 804638925, 8904557341, 102929260813, 1239432543709, 15511264432973, 201330839371421, 2705249923950477, 37567754666530140, 538369104335121860 ]
[ "nonn" ]
A108640
[ 1, 2, 6, 60, 1260, 239904, 123263712, 872883648000, 35330106763980000, 1.550281684411122e+22, 3.21961483996005e+28, 2.5604631493138585e+36, 7.17635502576022e+44 ]
[ "nonn" ]
A230201
[ 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 30, 32, 34, 36, 40, 42, 44, 46, 48, 50, 54, 58, 60, 64, 66, 68, 70, 72, 78, 80, 84, 90, 92, 94, 96, 98, 100, 102, 106, 108, 110, 114, 118, 120, 126, 128, 130, 132, 136, 138, 140, 144, 150, 156, 160, 162, 166, 168 ]
[ "nonn" ]
A346811
[ 0, 0, 0, 0, 3, 0, 0, 9, 15, 0, 0, 18, 45, 45, 0, 0, 30, 90, 135, 105, 0, 0, 45, 150, 270, 315, 210, 0, 0, 63, 225, 450, 630, 630, 378, 0, 0, 84, 315, 675, 1050, 1260, 1134, 630, 0, 0, 108, 420, 945, 1575, 2100, 2268, 1890, 990, 0 ]
[ "tabl", "nonn" ]
A280747
[ 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1, 3, 2, 2, 1, 1, 1, 2, 1, 2, 1, 1, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 2, 2, 2, 1, 1, 2, 1, 1, 1, 1, 4, 3, 3, 2, 2, 2, 4, 2, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 3, 2, 2, 2, 1, 1, 2, 1, 3, 2, 2, 1, 1, 1, 2, 1, 2, 1, 1, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 4, 4, 4, 2 ]
[ "nonn" ]
A092081
[ 1, 1, 2, 1, 3, 8, 1, 4, 15, 48, 1, 5, 24, 105, 384, 1, 6, 35, 192, 945, 3840, 1, 7, 48, 315, 1920, 10395, 46080, 1, 8, 63, 480, 3465, 23040, 135135, 645120, 1, 9, 80, 693, 5760, 45045, 322560, 2027025, 10321920, 1, 10, 99, 960, 9009, 80640, 675675, 5160960 ]
[ "nonn", "easy", "tabl" ]
A065817
[ 2, 3, 4, 5, 9, 11, 37, 43, 47, 71, 121, 131, 157, 223, 251, 257, 289, 307, 487, 529, 641, 1087, 1093, 1187, 1291, 1433, 1567, 1621, 1637, 1831, 1849, 1873, 1901, 2017, 2111, 2143, 2293, 2333, 2473, 2621, 2663, 2683, 2707, 2777, 2809, 2843, 2903, 3257, 3413 ]
[ "nonn" ]
A289889
[ 1, 1, 11, 1, 101, 11, 1101, 111, 10001, 1111, 111011, 10011, 1010011, 111111, 11011111, 1001111, 100011111, 11001111, 1110111111, 100001111, 10100010111, 1110011111, 110110110111, 10011111111, 1000110000111, 110000111111, 11101100100111, 1000000111111 ]
[ "nonn", "easy" ]
A130969
[ 1, 1, 2, 4, 9, 20, 51, 128, 345, 944, 2658, 7600, 22150 ]
[ "nonn" ]
A125251
[ 5, 6, 8, 9, 14, 19, 43, 44, 77, 85, 91, 112, 113, 142, 155, 195, 196, 212, 226, 300, 308, 321, 351, 363, 399, 456, 461, 467, 485, 541, 555, 602, 604, 618, 638, 646, 720, 728, 779, 789, 891, 896, 923, 980, 1009, 1099, 1105, 1150, 1176, 1234, 1253, 1287, 1392 ]
[ "nonn" ]
A326091
[ 1, 3, 11, 66, 601, 7418, 116505, 2248522, 52025473, 1414524690, 44471074249, 1595792690594, 64659403375137, 2931455146804330, 147550017664392450, 8189594420467104000, 498288959815836900000, 3.306171445116194e+22, 2.381086262720126e+24, 1.8536251255461825e+26, 1.5539467373234775e+28, 1.3981112334257668e+30, 1.3458456098087914e+32 ]
[ "nonn" ]
A267915
[ 13, 938, 43972, 2331981, 104491831, 4817531571, 207508204575, 8960112001163, 375426257575299, 15673406360156332, 644971612069289500, 26434347183210422000, 1.0754385962184485e+21, 4.361630055534635e+22 ]
[ "nonn" ]
A030438
[ 1, 1, 2, 24, 696, 37320, 3201840, 401914800, 69458497920, 15813882201600, 4587474713068800, 1651825133370720000, 722868238335090400000, 3.7786272750023786e+23, 2.325368252239807e+26 ]
[ "nonn" ]
A209233
[ 11, 111, 211, 111121, 311112121, 311212221131, 211212113221222240, 2.1131211342142213e+23, 3.1121241311442113e+32, 4.114123131144211e+44, 4.113124134143213e+47 ]
[ "nonn", "base" ]
A038429
[ 1, 4, 12, 20, 31, 50, 88, 117, 137, 167, 221, 282, 336, 377, 432, 488, 583, 674, 734, 795, 897, 1017, 1106, 1193, 1275, 1421, 1554, 1656, 1768, 1882, 2058, 2202, 2333, 2443, 2598, 2808, 2963, 3128, 3241, 3443, 3632, 3867, 4023, 4166, 4390, 4591, 4852 ]
[ "nonn" ]
A282605
[ 1, 3, 1, 7, 17, 55, 49, 151, 481, 295, 2033, 87, 481, 1127, 7665, 27159, 89697, 255975, 45425, 219031, 720097, 3616615, 1695985, 5022487, 33517409, 18085863, 125409649, 106745751, 534180065, 392377191, 1710087409, 2105077527, 5489957729, 12312281063 ]
[ "nonn", "easy" ]
A239448
[ 1, 2, 3, 4, 5, 23, 7, 8, 9, 25, 11, 43, 13, 27, 1129, 16, 17, 29, 19, 36389, 37, 211, 23, 83, 25, 3251, 27, 47, 29, 547, 31, 32, 311, 31397, 1129, 49, 37, 373, 313, 3137, 41, 379, 43, 3137, 36389, 223, 47, 163, 49, 71443, 317, 31123, 53, 227, 773, 983, 1129, 229, 59, 3529, 61, 31237, 97, 64, 2719 ]
[ "nonn", "base" ]
A135428
[ 1, 90, 810000, 729000000000, 65610000000000000000, 5.9049e+29, 5.31441e+41 ]
[ "nonn" ]
A249561
[ 1, 1, 2, 4, 9, 22, 57, 155, 440, 1299, 3977, 12596, 41181, 138711, 480548, 1709714, 6238685, 23319998, 89199763, 348799322, 1393087403, 5678298218, 23603135064, 99984420371, 431347901729, 1894074165622, 8460557754681, 38424506440883, 177342850025592, 831413025268569, 3957592646327463 ]
[ "nonn" ]
A120671
[ 2, 1, 9, 6, 6, 7, 9, 0, 9, 7, 1, 0, 0, 5, 6, 6, 4, 1, 1, 8, 1, 6, 6, 1, 1, 9, 7, 5, 5, 0, 1, 4, 5, 1, 6, 4, 6, 0, 9, 3, 9, 4, 7, 7, 4, 0, 2, 9, 4, 3, 1, 8, 6, 4, 2, 5, 5, 7, 1, 2, 4, 4, 1, 6, 7, 4, 0, 0, 1, 1, 5, 1, 5, 0, 4, 6, 4, 6, 1, 5, 8, 5, 0, 7, 7, 6, 1, 7, 7, 5, 1, 9, 1, 8, 6, 5, 4, 2, 1, 5, 4, 8, 2, 5, 3 ]
[ "cons", "nonn" ]
A113367
[ 1, 18, 297, 5349, 109095, 2529909, 66345668, 1951815218, 63879120597, 2307569048308, 91351738972187, 3937843359099176, 183778364128820500, 9238674078250457000, 497996763423626040000, 2.8666454637876854e+22 ]
[ "nonn" ]
A117441
[ 1, 1, 0, 1, -1, 0, -1, -1, 0, -1, 1, 0, 1, 1, 0, 1, -1, 0, -1, -1, 0, -1, 1, 0, 1, 1, 0, 1, -1, 0, -1, -1, 0, -1, 1, 0, 1, 1, 0, 1, -1, 0, -1, -1, 0, -1, 1, 0, 1, 1, 0, 1, -1, 0, -1, -1, 0, -1, 1, 0, 1, 1, 0, 1, -1, 0, -1, -1, 0, -1, 1, 0, 1, 1, 0, 1, -1, 0 ]
[ "easy", "sign" ]
A385160
[ 4, 68, 4244, 38100, 222300, 695544, 2252764 ]
[ "nonn", "more" ]
A371841
[ 0, 1, 1, 1, -35, 325, -1295, -12455, 283285, -2186675, -5612255, 324564625, -2869315163, -12271744331, 490525545169, -2159646628535, -58485623789483, 634417586418781, 8780962428445537, -156001827155519800, -2145519156372933400, 50455156500263950000 ]
[ "sign" ]
A182038
[ 1, -1, -1, 0, 1, 0, -1, 1, 2, 0, -3, 0, 2, 0, -3, 0, 5, 0, -4, -2, 4, 0, -5, 0, 7, 2, -7, 0, 5, 0, -10, 1, 12, 0, -10, 0, 14, -4, -17, 0, 21, 0, -22, 4, 24, 0, -34, 0, 33, 1, -36, 0, 45, 0, -45, -8, 52, 0, -55, 0, 62, 8, -71, 0, 70, 0, -88, 2, 96, 0, -98, 0 ]
[ "sign" ]
A198313
[ 0, 0, 0, 1, 1, 1, 4, 4, 15, 23, 162, 540, 18958, 389417, 50314520, 2942196930, 1698517018988 ]
[ "nonn", "more", "hard" ]
A203802
[ 1, 0, 3, -5, 6, -3, 14, -48, 52, -10, 90, -329, 234, -28, 1038, -2349, 1598, -1044, 4182, -12750, 17262, -198, 28658, -135285, 90031, -520, 300405, -554974, 514230, -464658, 1346270, -5188656, 5326470, -3570, 11782764, -34556612, 24157818, -9348, 95140422, -256249218, 165580142 ]
[ "sign" ]
A327052
[ 1, 2, 6, 75, 24981, 2077072342, 9221293211115590000, 1.7014118262863692e+38 ]
[ "nonn", "more" ]
A301243
[ 1, 4, 10, 22, 39, 62, 83, 109, 156, 201, 241, 293, 348, 398, 467, 553, 620, 691, 778, 878, 964, 1054, 1174, 1276, 1377, 1500, 1646, 1775, 1874, 1996, 2168, 2326, 2475, 2643, 2776, 2941, 3113, 3297, 3512, 3664, 3835, 4043, 4250, 4487, 4664, 4852, 5100 ]
[ "nonn" ]
A043060
[ 1, 3, 15, 16, 17, 18, 19, 20, 21, 99, 107, 115, 123, 131, 139, 147, 687, 694, 701, 708, 715, 722, 729, 737, 744, 751, 758, 765, 772, 779, 787, 794, 801, 808, 815, 822, 829, 837, 844, 851, 858, 865, 872, 879, 887, 894, 901, 908 ]
[ "nonn", "base" ]
A182399
[ 1, 1, 1, 3, 7, 21, 61, 187, 583, 1837, 5885, 19027, 62167, 204917, 680621, 2275211, 7648519, 25852573, 87812093, 299349795, 1023570647, 3515918501, 12140103149, 41894710427, 143835281351, 501071173901, 1808088546557, 6212411239539, 17720665594455 ]
[ "sign" ]
A202129
[ 0, 2, 4, 5, 7, 9, 10, 11, 12, 16, 17, 20, 23, 26, 28, 31, 33, 35, 38, 39, 40, 41, 42, 46, 48, 49, 52, 54, 55, 59, 60, 62, 63, 66, 67, 72, 76, 77, 82, 83, 87, 89, 90, 101, 103, 104, 105, 108, 111, 112, 114, 117, 118, 119, 125, 126, 129, 133, 137, 138, 140 ]
[ "nonn", "easy" ]
A351971
[ 1, 1, 1, 1, 2, 6, 16, 36, 72, 136, 256, 496, 992, 2016, 4096, 8256, 16513, 32913, 65689, 131785, 266482, 544230, 1124344, 2352188, 4984968, 10699656, 23244976, 51072256, 113370112, 253930816, 573005056, 1300390016, 2962852353, 6766967329, 15472840497 ]
[ "nonn" ]
A078632
[ 0, 1, 2, 5, 6, 9, 10, 15, 18, 21, 22, 28, 29, 32, 35, 43, 44, 50, 51, 57, 60, 63, 64, 73, 76, 79, 84, 90, 91, 98, 99, 109, 112, 115, 118, 129, 130, 133, 136, 145, 146, 153, 154, 160, 166, 169, 170, 183, 186, 192, 195, 201, 202, 211, 214, 223, 226, 229, 230, 242 ]
[ "nonn", "easy" ]
A002130
[ 1, -1, 1, 3, -2, 1, -5, 23, -25, 27, -49, 74, -62, 85, -132, 165, -195, 229, -240, 325, -374, 379, -469, 553, -590, 746, -805, 854, -1000, 1085, -1168, 1284, -1396, 1668, -1767, 1815, -2030, 2297, -2450, 2480, -2849, 3293, -3113, 3278, -3772, 4091, -4230, 4213, -4830, 5607, -5499, 5430, -6018, 6922, -6880 ]
[ "sign", "easy" ]
A282416
[ 1, 1, 110, 11, 11100, 111, 1111000, 1111, 111110000, 11111, 11111100000, 111111, 1111111000000, 1111111, 111111110000000, 11111111, 11111111100000000, 111111111, 1111111111000000000, 1111111111, 111111111110000000000, 11111111111, 1.11111111111e+22 ]
[ "nonn", "easy" ]
A267818
[ 673, 1165921, 6228961, 53378329, 128818873, 805379161, 926711449, 1542173569, 2459671993, 8365652929, 14232980953, 26484614209, 30755887321, 31937961241, 37968797689, 78180076129, 80974979329, 97835803129, 168394504129, 314911422913, 410879716321, 529074406681 ]
[ "nonn", "base" ]
A284773
[ 1, 3, 4, 6, 7, 9, 11, 12, 14, 15, 17, 19, 20, 22, 23, 25, 26, 28, 29, 31, 33, 34, 36, 37, 39, 41, 42, 44, 45, 47, 48, 50, 51, 53, 55, 56, 58, 59, 61, 63, 64, 66, 67, 69, 71, 72, 74, 75, 77, 79, 80, 82, 83, 85, 86, 88, 89, 91, 93, 94, 96, 97, 99, 101, 102 ]
[ "nonn", "easy" ]
A209573
[ 1, 1, 1, 2, 4, 1, 3, 9, 9, 1, 4, 17, 29, 16, 1, 5, 28, 69, 74, 25, 1, 6, 42, 138, 224, 160, 36, 1, 7, 59, 245, 541, 613, 307, 49, 1, 8, 79, 399, 1127, 1781, 1469, 539, 64, 1, 9, 102, 609, 2111, 4331, 5103, 3171, 884, 81, 1, 10, 128, 884, 3649, 9281, 14419 ]
[ "nonn", "tabl" ]
A072343
[ 3, 28, 320, 4272, 65632, 1149312, 22712832, 501216000, 12225264128, 326574262272, 9478749110272, 296914161754112, 9979741990993920, 358151267772203000, 13664955628675400000, 552220995731872500000, 2.35581129444073e+22, 1.0578166592150077e+24, 4.986275170986436e+25 ]
[ "easy", "nonn" ]
A294035
[ 1, 3, 9, 33, 153, 783, 4059, 21087, 110889, 592899, 3214989, 17608077, 97150491, 539331237, 3010588317, 16887545793, 95134584969, 537942476907, 3051902823849, 17365639042449, 99076018204413, 566622950463099, 3247670747106927, 18651711493531540, 107315246617831180 ]
[ "nonn" ]
A212360
[ 1, 2, 1, 3, 6, 2, 4, 12, 12, 36, 6, 5, 20, 40, 120, 180, 240, 24, 6, 30, 90, 60, 300, 1200, 320, 1200, 2700, 1800, 120, 7, 42, 126, 210, 630, 3150, 2100, 3150, 4200, 25200, 12600, 12600, 37800, 15120, 720, 8, 56, 224, 392, 280, 1176, 7056, 11760, 9072, 11760, 11760, 88200, 58800, 176400, 22260, 58800, 470400, 352800, 141120, 529200, 141120, 5040 ]
[ "nonn", "tabf" ]
A197225
[ 3, 11, 17, 37, 41, 53, 73, 79, 83, 101, 107, 137, 163, 173, 227, 239, 257, 271, 317, 347, 353, 359, 449, 467, 479, 563, 587, 641, 643, 719, 733, 751, 757, 773, 797, 839, 907, 1031, 1187, 1231, 1283, 1307, 1319, 1409, 1439, 1493, 1523, 1627, 1637, 1879, 1907 ]
[ "nonn", "base" ]
A317053
[ 31, 74, 76, 87, 112, 121, 319, 562, 679, 1462, 3937, 5312, 7987, 18312, 61312, 66712, 2597287 ]
[ "nonn", "fini", "full" ]
A382358
[ 1, 2, 1, 2, 3, 1, 2, 1, 3, 4, 2, 5, 4, 1, 3, 2, 5, 3, 1, 4, 6, 2, 5, 1, 6, 4, 7, 3, 2, 5, 8, 4, 1, 7, 3, 6, 2, 5, 8, 3, 7, 4, 1, 6, 9, 2, 5, 8, 1, 6, 10, 7, 4, 9, 3, 2, 5, 8, 11, 4, 9, 3, 10, 7, 1, 6, 2, 5, 8, 11, 3, 7, 12, 6, 1, 10, 4, 9, 2, 5, 8, 11, 1, 6, 10, 3, 9, 4, 13, 7, 12 ]
[ "nonn", "tabl" ]