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Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 6 |
| 4 | 17 |
| 5 | 45 |
| 6 | 114 |
| 7 | 264 |
| 8 | 545 |
| 9 | 1061 |
| 10 | 2070 |
| 11 | 3990 |
| 12 | 7275 |
| 13 | 12556 |
| 14 | 20824 |
| 15 | 33584 |
| 16 | 52753 |
| 17 | 80560 |
| 18 | 119274 |
| 19 | 170168 |
| 20 | 232700 |
| 21 | 306472 |
| 22 | 396580 |
| 23 | 517300 |
| 24 | 688736 |
| 25 | 926816 |
| 26 | 1241720 |
| 27 | 1640968 |
| 28 | 2130448 |
| 29 | 2710356 |
| 30 | 3383596 |
| 31 | 4171788 |
| 32 | 5120776 |
| 33 | 6289760 |
| 34 | 7747928 |
| 35 | 9582196 |
| 36 | 11908872 |
| 37 | 14887792 |
| 38 | 18732340 |
| 39 | 23712492 |
| 40 | 30141180 |
| 41 | 38341172 |
| 42 | 48622328 |
| 43 | 61275752 |
| 44 | 76578628 |
| 45 | 94786504 |
| 46 | 116132688 |
| 47 | 140870564 |
| 48 | 169379536 |
| 49 | 202262720 |
| 50 | 240326780 |
| 51 | 284337040 |
| 52 | 334532714 |
| 53 | 389976092 |
[1,2,6,17,45,114,264,545,1061,2070,3990,7275, 12556,20824,33584,52753,80560,119274,170168, 232700,306472,396580,517300,688736,926816,1241720, 1640968,2130448,2710356,3383596,4171788,5120776, 6289760,7747928,9582196,11908872,14887792, 18732340,23712492,30141180,38341172,48622328, 61275752,76578628,94786504,116132688,140870564, 169379536,202262720,240326780,284337040,334532714, 389976092] |