n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 8 |
4 | 72 |
5 | 384 |
6 | 3840 |
7 | 80640 |
8 | 645120 |
9 | 10321920 |
10 | 309657600 |
11 | 3715891200 |
12 | 102187008000 |
13 | 3310859059200 |
14 | 51011754393600 |
15 | 1428329123020800 |
16 | 68559797904998400 |
17 | 1942527607308288000 |
[1,1,2,8,72,384,3840,80640,645120,10321920, 309657600,3715891200,102187008000,3310859059200, 51011754393600,1428329123020800,68559797904998400, 1942527607308288000] |