n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 1080 |
3 | 16133644800 |
4 | 139256878046022696960000 |
5 | 6288402750181849898716908922601472000000000 |
6 | 8322157105451357856813375261666887975745751468393837363200000000000000 |
[1,2,1080,16133644800,139256878046022696960000, 6288402750181849898716908922601472000000000, 83221571054513578568133752616668879757457514683938\ 37363200000000000000] |