n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 1 |
4 | 3 |
5 | 11 |
6 | 53 |
7 | 317 |
8 | 2216 |
9 | 17717 |
10 | 159400 |
11 | 1593683 |
12 | 17528297 |
13 | 210321847 |
14 | 2734024611 |
15 | 38274750871 |
16 | 574103734768 |
17 | 9185449434441 |
18 | 156149906360886 |
19 | 2810660039745077 |
20 | 53401966651421695 |
21 | 1068030147578999459 |
22 | 22428476949252627753 |
23 | 493423682223518065489 |
[0,1,2,1,3,11,53,317,2216,17717,159400,1593683, 17528297,210321847,2734024611,38274750871, 574103734768,9185449434441,156149906360886, 2810660039745077,53401966651421695, 1068030147578999459,22428476949252627753, 493423682223518065489] |