n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 9 |
6 | 39 |
7 | 227 |
8 | 1199 |
9 | 6097 |
10 | 63869 |
11 | 840409 |
12 | 12862601 |
13 | 284127507 |
14 | 7552975051 |
15 | 252656207179 |
16 | 10547338792841 |
[1,1,1,1,9,39,227,1199,6097,63869,840409,12862601, 284127507,7552975051,252656207179,10547338792841] |