n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 3 |
3 | 8 |
4 | 23 |
5 | 72 |
6 | 237 |
7 | 808 |
8 | 2830 |
9 | 10118 |
10 | 36779 |
11 | 135510 |
12 | 504935 |
13 | 1899494 |
14 | 7204238 |
15 | 27517766 |
16 | 105761937 |
17 | 408715018 |
18 | 1587169591 |
19 | 6190357852 |
20 | 24238696551 |
21 | 95244997612 |
22 | 375469654543 |
23 | 1484519159122 |
24 | 5885302251250 |
25 | 23389997790804 |
26 | 93172394487012 |
[1,2,3,8,23,72,237,808,2830,10118,36779,135510, 504935,1899494,7204238,27517766,105761937, 408715018,1587169591,6190357852,24238696551, 95244997612,375469654543,1484519159122, 5885302251250,23389997790804,93172394487012] |