n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 5 |
7 | 25 |
8 | 85 |
9 | 499 |
10 | 2253 |
11 | 9751 |
12 | 103141 |
13 | 1030207 |
14 | 12930523 |
15 | 188986765 |
16 | 3964919203 |
17 | 79856104275 |
18 | 2515127447393 |
[1,1,1,1,1,5,25,85,499,2253,9751,103141,1030207, 12930523,188986765,3964919203,79856104275, 2515127447393] |