n | a(n) |
---|---|
1 | 1 |
2 | 87178291200 |
3 | 121645100408832000 |
4 | 15511210043330985984000000 |
5 | 263130836933693530167218012160000000 |
6 | 815915283247897734345611269596115894272000000000 |
[1,87178291200,121645100408832000, 15511210043330985984000000, 263130836933693530167218012160000000, 815915283247897734345611269596115894272000000000] |