n | a(n) |
---|---|
1 | 0 |
2 | 6 |
3 | 5616 |
4 | 660602880 |
5 | 56653740000000000 |
6 | 847972210819236925066444800 |
7 | 35832085525362833262818017603275320524800 |
8 | 454962949457868147194568283111215836246845930653666508800 |
[0,6,5616,660602880,56653740000000000, 847972210819236925066444800, 35832085525362833262818017603275320524800, 45496294945786814719456828311121583624684593065366\ 6508800] |