n | a(n) |
---|---|
1 | 1 |
2 | 5 |
3 | 35 |
4 | 294 |
5 | 2772 |
6 | 28314 |
7 | 306735 |
8 | 3476330 |
9 | 40831076 |
10 | 493684828 |
11 | 6114096716 |
12 | 77266057400 |
13 | 993420738000 |
14 | 12964140630900 |
15 | 171393565105575 |
16 | 2291968851019650 |
17 | 30961684478686500 |
18 | 422056646314726500 |
[1,5,35,294,2772,28314,306735,3476330,40831076, 493684828,6114096716,77266057400,993420738000, 12964140630900,171393565105575,2291968851019650, 30961684478686500,422056646314726500] |