n | a(n) |
---|---|
1 | 2 |
2 | 5 |
3 | 54 |
4 | 648 |
5 | 2160 |
6 | 337169025526136832000 |
7 | 685506275314921762068267522458966662115416623590907309075726336000000 |
8 | 46641846972427276691124922228108091690332947069125333309512419901440000000000 |
[2,5,54,648,2160,337169025526136832000, 68550627531492176206826752245896666211541662359090\ 7309075726336000000, 46641846972427276691124922228108091690332947069125\ 333309512419901440000000000] |