n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 6 |
4 | 24 |
5 | 96 |
6 | 444 |
7 | 2508 |
8 | 13216 |
9 | 74772 |
10 | 490758 |
11 | 3587634 |
12 | 32230992 |
13 | 247788878 |
14 | 2035600526 |
15 | 18463836692 |
16 | 192838249056 |
[1,2,6,24,96,444,2508,13216,74772,490758,3587634, 32230992,247788878,2035600526,18463836692, 192838249056] |