n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 14 |
5 | 43 |
6 | 143 |
7 | 507 |
8 | 1887 |
9 | 7279 |
10 | 28828 |
11 | 116455 |
12 | 477709 |
13 | 1983779 |
14 | 8321474 |
15 | 35203777 |
16 | 150014157 |
17 | 643302743 |
18 | 2773997104 |
19 | 12020733635 |
20 | 52319374842 |
21 | 228616865437 |
22 | 1002544803949 |
23 | 4410700121313 |
24 | 19462407890220 |
25 | 86111960348939 |
26 | 381956399941011 |
[1,1,2,5,14,43,143,507,1887,7279,28828,116455, 477709,1983779,8321474,35203777,150014157, 643302743,2773997104,12020733635,52319374842, 228616865437,1002544803949,4410700121313, 19462407890220,86111960348939,381956399941011] |