n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 16 |
5 | 68 |
6 | 399 |
7 | 3348 |
8 | 41417 |
9 | 775234 |
10 | 22445788 |
11 | 1024347395 |
12 | 74876701760 |
13 | 8888457145166 |
14 | 1734062627778860 |
[1,1,2,5,16,68,399,3348,41417,775234,22445788, 1024347395,74876701760,8888457145166, 1734062627778860] |