n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 25 |
4 | 157 |
5 | 1325 |
6 | 14358 |
7 | 199763 |
8 | 3549001 |
9 | 80673244 |
10 | 2352747542 |
11 | 88240542454 |
12 | 4261209044877 |
13 | 264988507673267 |
14 | 21207485269909946 |
15 | 2182146922863398203 |
[1,2,5,25,157,1325,14358,199763,3549001,80673244, 2352747542,88240542454,4261209044877, 264988507673267,21207485269909946, 2182146922863398203] |