n | a(n) |
---|---|
1 | 2 |
2 | 3 |
3 | 20 |
4 | 210 |
5 | 332640 |
6 | 8648640 |
7 | 70572902400 |
8 | 3016991577600 |
9 | 71241227785728000 |
10 | 2436552577639909048320000 |
11 | 205999445200465037721600000 |
12 | 28734252852655074735274328064000000 |
13 | 5372155913332392772506888374845440000000 |
[2,3,20,210,332640,8648640,70572902400, 3016991577600,71241227785728000, 2436552577639909048320000, 205999445200465037721600000, 28734252852655074735274328064000000, 5372155913332392772506888374845440000000] |