n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 22 |
4 | 499 |
5 | 9730 |
6 | 136491 |
7 | 1430727 |
8 | 11783122 |
9 | 78770456 |
10 | 443607864 |
11 | 2151608155 |
12 | 9218591346 |
13 | 35373572400 |
14 | 123749340262 |
15 | 398005623516 |
16 | 1192411118090 |
17 | 3344070542568 |
18 | 8869510553867 |
19 | 22304900540593 |
20 | 53635016669434 |
[0,0,22,499,9730,136491,1430727,11783122,78770456, 443607864,2151608155,9218591346,35373572400, 123749340262,398005623516,1192411118090, 3344070542568,8869510553867,22304900540593, 53635016669434] |