n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 6 |
4 | 24 |
5 | 96 |
6 | 444 |
7 | 3172 |
8 | 16976 |
9 | 112790 |
10 | 839320 |
11 | 7525858 |
12 | 86947336 |
13 | 816752748 |
14 | 8170308628 |
15 | 90956874778 |
16 | 1199823762964 |
[1,2,6,24,96,444,3172,16976,112790,839320,7525858, 86947336,816752748,8170308628,90956874778, 1199823762964] |