The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 4 |
| 5 | 2 |
| 6 | 14 |
| 7 | 9 |
| 8 | 1 |
| 9 | 65 |
| 10 | 46 |
| 11 | 9 |
| 12 | 366 |
| 13 | 285 |
| 14 | 66 |
| 15 | 3 |
| 16 | 2451 |
| 17 | 2006 |
| 18 | 539 |
| 19 | 44 |
| 20 | 18949 |
| 21 | 16054 |
| 22 | 4776 |
| 23 | 530 |
| 24 | 11 |
| 25 | 166033 |
| 26 | 144128 |
| 27 | 46230 |
| 28 | 6224 |
| 29 | 265 |
| 30 | 1624948 |
| 31 | 1436322 |
| 32 | 487573 |
| 33 | 75269 |
| 34 | 4635 |
| 35 | 53 |
| 36 | 17561350 |
| 37 | 15740718 |
| 38 | 5584332 |
| 39 | 954116 |
| 40 | 74430 |
| 41 | 1854 |
| 42 | 207650171 |
| 43 | 188194591 |
| 44 | 69157935 |
| 45 | 12776470 |
| 46 | 1177625 |
| 47 | 44499 |
| 48 | 309 |
[1,1,1,1,4,2,14,9,1,65,46,9,366,285,66,3,2451, 2006,539,44,18949,16054,4776,530,11,166033,144128, 46230,6224,265,1624948,1436322,487573,75269,4635, 53,17561350,15740718,5584332,954116,74430,1854, 207650171,188194591,69157935,12776470,1177625, 44499,309] |