n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 2 |
3 | 2 |
4 | 3 |
5 | 6 |
6 | 14 |
7 | 36 |
8 | 99 |
9 | 286 |
10 | 858 |
11 | 2652 |
12 | 8398 |
13 | 27132 |
14 | 89148 |
15 | 297160 |
16 | 1002915 |
17 | 3421710 |
18 | 11785890 |
19 | 40940460 |
20 | 143291610 |
21 | 504932340 |
22 | 1790214660 |
23 | 6382504440 |
24 | 22870640910 |
25 | 82334307276 |
26 | 297670187844 |
27 | 1080432533656 |
28 | 3935861372604 |
[1,2,2,2,3,6,14,36,99,286,858,2652,8398,27132, 89148,297160,1002915,3421710,11785890,40940460, 143291610,504932340,1790214660,6382504440, 22870640910,82334307276,297670187844, 1080432533656,3935861372604] |