n | a(n) |
---|---|
0 | 1 |
1 | 5 |
2 | 19 |
3 | 65 |
4 | 216 |
5 | 715 |
6 | 2369 |
7 | 7855 |
8 | 26051 |
9 | 86400 |
10 | 286549 |
11 | 950345 |
12 | 3151831 |
13 | 10453085 |
14 | 34667784 |
15 | 114976135 |
16 | 381319781 |
17 | 1264651795 |
18 | 4194233399 |
19 | 13910227200 |
20 | 46133441401 |
21 | 153002131805 |
22 | 507433471819 |
23 | 1682909416265 |
24 | 5581389996216 |
[1,5,19,65,216,715,2369,7855,26051,86400,286549, 950345,3151831,10453085,34667784,114976135, 381319781,1264651795,4194233399,13910227200, 46133441401,153002131805,507433471819, 1682909416265,5581389996216] |