n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 9 |
4 | 46 |
5 | 535 |
6 | 5556 |
7 | 77959 |
8 | 1095676 |
9 | 18340641 |
10 | 322884100 |
11 | 6409501021 |
12 | 135523839144 |
13 | 3138611916895 |
14 | 77453355089670 |
15 | 2057976176922345 |
16 | 58050771478142776 |
17 | 1743667657129025785 |
18 | 55337129921476848636 |
[1,2,9,46,535,5556,77959,1095676,18340641, 322884100,6409501021,135523839144,3138611916895, 77453355089670,2057976176922345,58050771478142776, 1743667657129025785,55337129921476848636] |