n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 6 |
4 | 39 |
5 | 1525 |
6 | 2325630 |
7 | 5408554896906 |
8 | 29252466072845872288372843 |
9 | 855706771342998810018458679815602502067088579902657 |
[1,2,6,39,1525,2325630,5408554896906, 29252466072845872288372843, 85570677134299881001845867981560250206708857990265\ 7] |