n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 6 |
4 | 24 |
5 | 96 |
6 | 444 |
7 | 2508 |
8 | 13216 |
9 | 74772 |
10 | 490758 |
11 | 3432594 |
12 | 29784866 |
13 | 218746780 |
14 | 1711675050 |
15 | 14763495624 |
16 | 145575514096 |
[1,2,6,24,96,444,2508,13216,74772,490758,3432594, 29784866,218746780,1711675050,14763495624, 145575514096] |