n | a(n) |
---|---|
1 | 1 |
2 | 16 |
3 | 108864 |
4 | 2391175987200 |
5 | 615524208068689920000000 |
6 | 4831082166102613213870122703257600000000 |
7 | 2481336275198061145749280386508780674949224836628480000000000 |
[1,16,108864,2391175987200, 615524208068689920000000, 4831082166102613213870122703257600000000, 24813362751980611457492803865087806749492248366284\ 80000000000] |