n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 12 |
5 | 37 |
6 | 118 |
7 | 387 |
8 | 1312 |
9 | 4445 |
10 | 17034 |
11 | 73339 |
12 | 342532 |
13 | 1616721 |
14 | 7299100 |
15 | 31195418 |
16 | 129179184 |
17 | 578924785 |
18 | 3057167242 |
19 | 18723356715 |
20 | 120613872016 |
21 | 738703713245 |
22 | 4080301444740 |
23 | 20353638923275 |
24 | 95273007634552 |
25 | 443132388701107 |
26 | 2149933834972928 |
[1,1,2,5,12,37,118,387,1312,4445,17034,73339, 342532,1616721,7299100,31195418,129179184, 578924785,3057167242,18723356715,120613872016, 738703713245,4080301444740,20353638923275, 95273007634552,443132388701107,2149933834972928] |