n | a(n) |
---|---|
1 | 2 |
2 | 2 |
3 | 12 |
4 | 72 |
5 | 720 |
6 | 6480 |
7 | 90720 |
8 | 1209600 |
9 | 20321280 |
10 | 359251200 |
11 | 7424524800 |
12 | 160465536000 |
13 | 3923023104000 |
14 | 101213996083200 |
15 | 2853345470976000 |
16 | 85364982743040000 |
17 | 2742350070620160000 |
18 | 93039294691639296000 |
[2,2,12,72,720,6480,90720,1209600,20321280, 359251200,7424524800,160465536000,3923023104000, 101213996083200,2853345470976000, 85364982743040000,2742350070620160000, 93039294691639296000] |