n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 19 |
5 | 58 |
6 | 184 |
7 | 604 |
8 | 2017 |
9 | 6806 |
10 | 23161 |
11 | 79392 |
12 | 273614 |
13 | 946981 |
14 | 3289364 |
15 | 11460830 |
16 | 40036253 |
17 | 140175224 |
18 | 491756763 |
19 | 1728190792 |
20 | 6082921479 |
21 | 21440851774 |
22 | 75669652513 |
23 | 267362335333 |
24 | 945656056754 |
25 | 3347973882425 |
26 | 11863501369311 |
27 | 42072251661888 |
[1,1,2,6,19,58,184,604,2017,6806,23161,79392, 273614,946981,3289364,11460830,40036253,140175224, 491756763,1728190792,6082921479,21440851774, 75669652513,267362335333,945656056754, 3347973882425,11863501369311,42072251661888] |