n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 16 |
5 | 74 |
6 | 612 |
7 | 12271 |
8 | 893422 |
9 | 414194958 |
10 | 2790004382642 |
11 | 907459561737399050 |
12 | 79479770316224310083608800 |
13 | 22570656733849188237806831031463922346 |
[1,1,2,5,16,74,612,12271,893422,414194958, 2790004382642,907459561737399050, 79479770316224310083608800, 22570656733849188237806831031463922346] |