n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 11 |
4 | 44 |
5 | 185 |
6 | 806 |
7 | 3627 |
8 | 16926 |
9 | 82615 |
10 | 425633 |
11 | 2325804 |
12 | 13438568 |
13 | 81258283 |
14 | 507109592 |
15 | 3223435416 |
16 | 20655599675 |
17 | 132496854084 |
18 | 847152571284 |
19 | 5386490329194 |
20 | 34026141582719 |
21 | 213512516149309 |
22 | 1331393810596499 |
23 | 8255968489237781 |
24 | 50955585198416275 |
25 | 313329163267012645 |
[1,1,3,11,44,185,806,3627,16926,82615,425633, 2325804,13438568,81258283,507109592,3223435416, 20655599675,132496854084,847152571284, 5386490329194,34026141582719,213512516149309, 1331393810596499,8255968489237781, 50955585198416275,313329163267012645] |