n | a(n) |
---|---|
3 | 1 |
4 | 18 |
5 | 43920 |
6 | 4397760 |
7 | 122377651200 |
8 | 30993058252800 |
9 | 3921055557027840000 |
10 | 711860093387348628602880000 |
11 | 551343268152723132127641600000 |
12 | 567168796017902020698219516788736000000 |
[1,18,43920,4397760,122377651200,30993058252800, 3921055557027840000,711860093387348628602880000, 551343268152723132127641600000, 567168796017902020698219516788736000000] |