n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 3 |
6 | 37 |
7 | 63 |
8 | 479 |
9 | 1316 |
10 | 8597 |
11 | 14619 |
12 | 155999 |
13 | 211231 |
14 | 1732907 |
15 | 5302823 |
16 | 21559909 |
17 | 43398413 |
18 | 466495335 |
19 | 625545865 |
20 | 5659500031 |
21 | 15126813765 |
22 | 72778025365 |
23 | 132561145173 |
24 | 1460519554091 |
25 | 2338565021382 |
[0,0,0,1,3,37,63,479,1316,8597,14619,155999, 211231,1732907,5302823,21559909,43398413, 466495335,625545865,5659500031,15126813765, 72778025365,132561145173,1460519554091, 2338565021382] |