The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 2 |
| 4 | 5 |
| 5 | 15 |
| 6 | 5 |
| 7 | 15 |
| 8 | 178 |
| 9 | 178 |
| 10 | 15 |
| 11 | 51 |
| 12 | 2614 |
| 13 | 9880 |
| 14 | 2614 |
| 15 | 51 |
| 16 | 187 |
| 17 | 40148 |
| 18 | 583813 |
| 19 | 583813 |
| 20 | 40148 |
| 21 | 187 |
| 22 | 715 |
| 23 | 622645 |
| 24 | 34679839 |
| 25 | 132636590 |
| 26 | 34679839 |
| 27 | 622645 |
| 28 | 715 |
| 29 | 2795 |
| 30 | 9676364 |
| 31 | 2060918000 |
| 32 | 30147154218 |
| 33 | 30147154218 |
| 34 | 2060918000 |
| 35 | 9676364 |
| 36 | 2795 |
[1,2,2,5,15,5,15,178,178,15,51,2614,9880,2614,51, 187,40148,583813,583813,40148,187,715,622645, 34679839,132636590,34679839,622645,715,2795, 9676364,2060918000,30147154218,30147154218, 2060918000,9676364,2795] |