n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 9 |
4 | 62 |
5 | 593 |
6 | 7266 |
7 | 108720 |
8 | 1922166 |
9 | 39212154 |
10 | 906623004 |
11 | 23429034168 |
12 | 669203550906 |
13 | 20935080981744 |
14 | 711872134399868 |
15 | 26142553369667634 |
16 | 1031146768716808794 |
17 | 43475757877044427198 |
18 | 1951261759908828697902 |
[1,2,9,62,593,7266,108720,1922166,39212154, 906623004,23429034168,669203550906,20935080981744, 711872134399868,26142553369667634, 1031146768716808794,43475757877044427198, 1951261759908828697902] |