n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 1 |
4 | 3 |
5 | 10 |
6 | 37 |
7 | 126 |
8 | 422 |
9 | 1422 |
10 | 4853 |
11 | 16786 |
12 | 58775 |
13 | 208000 |
14 | 742887 |
15 | 2674426 |
16 | 9694830 |
17 | 35357654 |
18 | 129644773 |
19 | 477638682 |
20 | 1767263171 |
21 | 6564120400 |
22 | 24466266999 |
23 | 91482563618 |
24 | 343059613627 |
25 | 1289904147300 |
26 | 4861946401427 |
27 | 18367353072126 |
28 | 69533550915977 |
29 | 263747951750332 |
30 | 1002242216651339 |
[1,1,1,3,10,37,126,422,1422,4853,16786,58775, 208000,742887,2674426,9694830,35357654,129644773, 477638682,1767263171,6564120400,24466266999, 91482563618,343059613627,1289904147300, 4861946401427,18367353072126,69533550915977, 263747951750332,1002242216651339] |