n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 8 |
3 | 60 |
4 | 816 |
5 | 18480 |
6 | 629280 |
7 | 29806560 |
8 | 1864154880 |
9 | 148459288320 |
10 | 14652782323200 |
11 | 1754531527795200 |
12 | 250496911136102400 |
13 | 42032247888401971200 |
14 | 8188505926989625036800 |
15 | 1832839841629043799552000 |
16 | 467088574163459753336832000 |
17 | 134454052266325985991942144000 |
[1,2,8,60,816,18480,629280,29806560,1864154880, 148459288320,14652782323200,1754531527795200, 250496911136102400,42032247888401971200, 8188505926989625036800,1832839841629043799552000, 467088574163459753336832000, 134454052266325985991942144000] |