n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 108 |
4 | 442368 |
5 | 51200000 |
6 | 52428800000 |
7 | 43177371238400000 |
8 | 60766747818779941065981952 |
9 | 23542283154891408151173909109014528 |
10 | 60268244876522004867005207319077191680000000000 |
[1,4,108,442368,51200000,52428800000, 43177371238400000,60766747818779941065981952, 23542283154891408151173909109014528, 60268244876522004867005207319077191680000000000] |