n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 10 |
4 | 35 |
5 | 137 |
6 | 548 |
7 | 2252 |
8 | 9592 |
9 | 41450 |
10 | 181418 |
11 | 806184 |
12 | 3618645 |
13 | 16367203 |
14 | 74623914 |
15 | 342518519 |
16 | 1580323410 |
17 | 7327815923 |
18 | 34132414535 |
19 | 159587586198 |
20 | 748738458137 |
21 | 3524160636790 |
22 | 16634525981970 |
23 | 78718613038091 |
24 | 373406711537338 |
25 | 1775139491521145 |
26 | 8455617011579985 |
27 | 40351713098854554 |
[1,1,3,10,35,137,548,2252,9592,41450,181418, 806184,3618645,16367203,74623914,342518519, 1580323410,7327815923,34132414535,159587586198, 748738458137,3524160636790,16634525981970, 78718613038091,373406711537338,1775139491521145, 8455617011579985,40351713098854554] |