n | a(n) |
---|---|
1 | 2 |
2 | 6 |
3 | 48 |
4 | 1240 |
5 | 46080 |
6 | 10537956 |
7 | 4755179520 |
8 | 21601740363840 |
9 | 320026934857728000 |
10 | 5141450783421628416000 |
11 | 254900463912224253775282176 |
12 | 22582740409889438693597632266240 |
[2,6,48,1240,46080,10537956,4755179520, 21601740363840,320026934857728000, 5141450783421628416000, 254900463912224253775282176, 22582740409889438693597632266240] |