n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 25 |
4 | 265 |
5 | 3741 |
6 | 64051 |
7 | 1298053 |
8 | 30295665 |
9 | 800411545 |
10 | 23601417571 |
11 | 768200763441 |
12 | 27352316065273 |
13 | 1057402991121205 |
14 | 44102326806885075 |
15 | 1973793512480683741 |
16 | 94345589402816289121 |
17 | 4796647490592139950513 |
[1,1,3,25,265,3741,64051,1298053,30295665, 800411545,23601417571,768200763441,27352316065273, 1057402991121205,44102326806885075, 1973793512480683741,94345589402816289121, 4796647490592139950513] |