n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 7 |
4 | 35 |
5 | 228 |
6 | 1834 |
7 | 17382 |
8 | 195866 |
9 | 2487832 |
10 | 35499576 |
11 | 562356672 |
12 | 9794156448 |
13 | 186025364016 |
14 | 3826961710272 |
15 | 84775065603888 |
16 | 2011929826983504 |
[1,1,2,7,35,228,1834,17382,195866,2487832, 35499576,562356672,9794156448,186025364016, 3826961710272,84775065603888,2011929826983504] |