n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 5 |
4 | 14 |
5 | 51 |
6 | 165 |
7 | 585 |
8 | 2032 |
9 | 7280 |
10 | 26163 |
11 | 95325 |
12 | 349350 |
13 | 1290555 |
14 | 4792905 |
15 | 17895679 |
16 | 67106816 |
17 | 252645135 |
18 | 954429840 |
19 | 3616814565 |
20 | 13743869130 |
21 | 52357696365 |
22 | 199911109725 |
23 | 764877654105 |
24 | 2932030657200 |
25 | 11258999068416 |
[1,1,5,14,51,165,585,2032,7280,26163,95325,349350, 1290555,4792905,17895679,67106816,252645135, 954429840,3616814565,13743869130,52357696365, 199911109725,764877654105,2932030657200, 11258999068416] |