n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 6 |
4 | 40 |
5 | 4000 |
6 | 20000 |
7 | 80000000000 |
8 | 40000000000000000000000000000 |
9 | 30000000000000000000000000000000 |
10 | 3000000000000000000000000000000000000000 |
11 | 6000000000000000000000000000000000000000 |
[1,2,6,40,4000,20000,80000000000, 40000000000000000000000000000, 30000000000000000000000000000000, 3000000000000000000000000000000000000000, 6000000000000000000000000000000000000000] |