The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 7 |
| 2 | 3630 |
| 3 | 8737047 |
| 4 | 37112483200 |
| 5 | 203889639856012 |
| 6 | 1268055011723293820 |
| 7 | 8365565750024647646080 |
| 8 | 56569600402907949778157548 |
| 9 | 384772088547650348500010268365 |
[7,3630,8737047,37112483200,203889639856012, 1268055011723293820,8365565750024647646080, 56569600402907949778157548, 384772088547650348500010268365] |