n | a(n) |
---|---|
0 | 1 |
1 | 17 |
2 | 107 |
3 | 545 |
4 | 3235 |
5 | 19487 |
6 | 120311 |
7 | 752895 |
8 | 4762851 |
9 | 30376427 |
10 | 194992877 |
11 | 1258241573 |
12 | 8153851075 |
13 | 53026892117 |
14 | 345868792705 |
15 | 2261537247275 |
16 | 14818530646995 |
17 | 97269300449331 |
18 | 639438066653237 |
19 | 4208955700527261 |
[1,17,107,545,3235,19487,120311,752895,4762851, 30376427,194992877,1258241573,8153851075, 53026892117,345868792705,2261537247275, 14818530646995,97269300449331,639438066653237, 4208955700527261] |