The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 2208 |
| 3 | 251260 |
| 4 | 23732454 |
| 5 | 2644587148 |
| 6 | 297169006604 |
| 7 | 33056811286568 |
| 8 | 3676498268449668 |
| 9 | 409137247202506544 |
| 10 | 45530553691308851854 |
| 11 | 5066646847508250491070 |
| 12 | 563817868393293695820130 |
[0,2208,251260,23732454,2644587148,297169006604, 33056811286568,3676498268449668, 409137247202506544,45530553691308851854, 5066646847508250491070,563817868393293695820130] |