n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 1 |
4 | 2 |
5 | 6 |
6 | 16 |
7 | 36 |
8 | 141 |
9 | 757 |
10 | 3361 |
11 | 11881 |
12 | 69796 |
13 | 541256 |
14 | 3364362 |
15 | 16217566 |
16 | 127028721 |
17 | 1288189281 |
18 | 10294947721 |
19 | 62859285817 |
20 | 615454153246 |
21 | 7709812846786 |
22 | 75307542579116 |
23 | 556618975909536 |
24 | 6539815832391997 |
[1,1,1,1,2,6,16,36,141,757,3361,11881,69796, 541256,3364362,16217566,127028721,1288189281, 10294947721,62859285817,615454153246, 7709812846786,75307542579116,556618975909536, 6539815832391997] |