n | a(n) |
---|---|
1 | 2 |
2 | 2 |
3 | 4 |
4 | 12 |
5 | 240 |
6 | 40200 |
7 | 1385211600 |
8 | 1469089808430082650 |
9 | 1705264091048404496800363077779646800 |
10 | 2355419752377504356995163180927294204575594409432081035253034399529376520 |
[2,2,4,12,240,40200,1385211600, 1469089808430082650, 1705264091048404496800363077779646800, 23554197523775043569951631809272942045755944094320\ 81035253034399529376520] |