n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 720 |
4 | 87178291200 |
5 | 265252859812191058636308480000000 |
6 | 31469973260387937525653122354950764088012280797258232192163168247821107200000000000000 |
[1,2,720,87178291200, 265252859812191058636308480000000, 31469973260387937525653122354950764088012280797258\ 232192163168247821107200000000000000] |