The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 520 |
| 3 | 32253 |
| 4 | 1853532 |
| 5 | 108110791 |
| 6 | 6394436704 |
| 7 | 382399996325 |
| 8 | 23061514189084 |
| 9 | 1399727072882973 |
| 10 | 85393260809630392 |
| 11 | 5231506248052898794 |
| 12 | 321628304145152717720 |
| 13 | 19832505642478450579224 |
| 14 | 1226074610187600024235498 |
[1,520,32253,1853532,108110791,6394436704, 382399996325,23061514189084,1399727072882973, 85393260809630392,5231506248052898794, 321628304145152717720,19832505642478450579224, 1226074610187600024235498] |