n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 6 |
4 | 24 |
5 | 96 |
6 | 500 |
7 | 3184 |
8 | 19916 |
9 | 152948 |
10 | 1201392 |
11 | 10694440 |
12 | 105230548 |
13 | 1070644410 |
14 | 11962410912 |
15 | 139253305766 |
16 | 1788989811932 |
[1,2,6,24,96,500,3184,19916,152948,1201392, 10694440,105230548,1070644410,11962410912, 139253305766,1788989811932] |