n | a(n) |
---|---|
0 | 1 |
1 | 6 |
2 | 35 |
3 | 210 |
4 | 1287 |
5 | 8008 |
6 | 50388 |
7 | 319770 |
8 | 2042975 |
9 | 13123110 |
10 | 84672315 |
11 | 548354040 |
12 | 3562467300 |
13 | 23206929840 |
14 | 151532656696 |
15 | 991493848554 |
16 | 6499270398159 |
17 | 42671977361650 |
18 | 280576272201225 |
[1,6,35,210,1287,8008,50388,319770,2042975, 13123110,84672315,548354040,3562467300, 23206929840,151532656696,991493848554, 6499270398159,42671977361650,280576272201225] |