n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 6 |
4 | 6 |
5 | 20 |
6 | 1200 |
7 | 3024000 |
8 | 63504000 |
9 | 5334336000 |
10 | 4779565056000 |
11 | 9635603152896000 |
12 | 404695332421632000 |
13 | 44071321700715724800000 |
14 | 7329942225263039348736000000 |
[1,2,6,6,20,1200,3024000,63504000,5334336000, 4779565056000,9635603152896000,404695332421632000, 44071321700715724800000, 7329942225263039348736000000] |