n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 17 |
4 | 62 |
5 | 220 |
6 | 841 |
7 | 3189 |
8 | 12794 |
9 | 51277 |
10 | 209888 |
11 | 865350 |
12 | 3629443 |
13 | 15285646 |
14 | 64947866 |
15 | 277884512 |
16 | 1197339560 |
17 | 5179481837 |
18 | 22524304974 |
19 | 98421284540 |
20 | 431715987739 |
21 | 1899744576945 |
22 | 8390256984160 |
23 | 37173779175025 |
24 | 165129807238379 |
25 | 735393899723485 |
26 | 3283605964246124 |
27 | 14694311017578848 |
[1,2,6,17,62,220,841,3189,12794,51277,209888, 865350,3629443,15285646,64947866,277884512, 1197339560,5179481837,22524304974,98421284540, 431715987739,1899744576945,8390256984160, 37173779175025,165129807238379,735393899723485, 3283605964246124,14694311017578848] |