n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 9 |
4 | 33 |
5 | 113 |
6 | 1711 |
7 | 59971 |
8 | 1694043 |
9 | 74822217 |
10 | 7821008273 |
11 | 1319866139817 |
12 | 301739131956013 |
13 | 120737110736027887 |
[1,1,9,33,113,1711,59971,1694043,74822217, 7821008273,1319866139817,301739131956013, 120737110736027887] |