n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 3 |
7 | 7 |
8 | 15 |
9 | 29 |
10 | 107 |
11 | 505 |
12 | 2403 |
13 | 11235 |
14 | 68883 |
15 | 550857 |
16 | 5140463 |
17 | 52360741 |
18 | 625116575 |
19 | 9135765233 |
20 | 158905603757 |
21 | 3203687852735 |
22 | 75422308943617 |
[1,1,1,1,1,3,7,15,29,107,505,2403,11235,68883, 550857,5140463,52360741,625116575,9135765233, 158905603757,3203687852735,75422308943617] |