n | a(n) |
---|---|
1 | 1 |
2 | 6 |
3 | 60 |
4 | 984 |
5 | 24720 |
6 | 890640 |
7 | 43646400 |
8 | 2793409920 |
9 | 226266566400 |
10 | 22626660268800 |
11 | 2737825932441600 |
12 | 394246934750592000 |
13 | 66627731979077068800 |
14 | 13059035467986283776000 |
15 | 2938282980298221523968000 |
16 | 752200442956365632925696000 |
17 | 217385928014390023602954240000 |
[1,6,60,984,24720,890640,43646400,2793409920, 226266566400,22626660268800,2737825932441600, 394246934750592000,66627731979077068800, 13059035467986283776000,2938282980298221523968000, 752200442956365632925696000, 217385928014390023602954240000] |