n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 6 |
4 | 24 |
5 | 120 |
6 | 720 |
7 | 4416 |
8 | 30744 |
9 | 239856 |
10 | 2139504 |
11 | 19700808 |
12 | 202858542 |
13 | 2208308468 |
14 | 25994725052 |
15 | 324119733220 |
16 | 4313917683752 |
[1,2,6,24,120,720,4416,30744,239856,2139504, 19700808,202858542,2208308468,25994725052, 324119733220,4313917683752] |