n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 8 |
4 | 26 |
5 | 82 |
6 | 285 |
7 | 995 |
8 | 3613 |
9 | 13319 |
10 | 50053 |
11 | 190459 |
12 | 733555 |
13 | 2851945 |
14 | 11181927 |
15 | 44155907 |
16 | 175470374 |
17 | 701164361 |
18 | 2815635000 |
19 | 11356456980 |
20 | 45986353012 |
21 | 186882752814 |
22 | 761942170718 |
23 | 3115758466971 |
24 | 12775760835540 |
25 | 52516539411929 |
26 | 216375430357044 |
27 | 893403847582583 |
[1,1,3,8,26,82,285,995,3613,13319,50053,190459, 733555,2851945,11181927,44155907,175470374, 701164361,2815635000,11356456980,45986353012, 186882752814,761942170718,3115758466971, 12775760835540,52516539411929,216375430357044, 893403847582583] |