n | a(n) |
---|---|
0 | 2 |
1 | 6 |
2 | 35 |
3 | 234 |
4 | 1598 |
5 | 10947 |
6 | 75026 |
7 | 514230 |
8 | 3524579 |
9 | 24157818 |
10 | 165580142 |
11 | 1134903171 |
12 | 7778742050 |
13 | 53316291174 |
14 | 365435296163 |
15 | 2504730781962 |
16 | 17167680177566 |
17 | 117669030460995 |
18 | 806515533049394 |
19 | 5527939700884758 |
20 | 37889062373143907 |
21 | 259695496911122586 |
[2,6,35,234,1598,10947,75026,514230,3524579, 24157818,165580142,1134903171,7778742050, 53316291174,365435296163,2504730781962, 17167680177566,117669030460995,806515533049394, 5527939700884758,37889062373143907, 259695496911122586] |