n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 3 |
5 | 10 |
6 | 23 |
7 | 161 |
8 | 643 |
9 | 10399 |
10 | 76674 |
11 | 2793020 |
12 | 39088170 |
13 | 3075920130 |
14 | 83293952237 |
15 | 13726688369636 |
16 | 728989553713898 |
17 | 246651220048842038 |
18 | 25910326192430212792 |
19 | 17788328684183351444219 |
20 | 3714881265827493365084899 |
[1,1,2,3,10,23,161,643,10399,76674,2793020, 39088170,3075920130,83293952237,13726688369636, 728989553713898,246651220048842038, 25910326192430212792,17788328684183351444219, 3714881265827493365084899] |