n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 2 |
3 | 12 |
4 | 22 |
5 | 144 |
6 | 314 |
7 | 2094 |
8 | 4980 |
9 | 33962 |
10 | 85104 |
11 | 589050 |
12 | 1526520 |
13 | 10690958 |
14 | 28357414 |
15 | 200513838 |
16 | 540848844 |
17 | 3855418084 |
18 | 10529575602 |
19 | 75589847732 |
20 | 208400923746 |
21 | 1505463570864 |
22 | 4180703306104 |
23 | 30372614867534 |
24 | 84817986727644 |
25 | 619420989037864 |
26 | 1737266065061962 |
[1,2,2,12,22,144,314,2094,4980,33962,85104,589050, 1526520,10690958,28357414,200513838,540848844, 3855418084,10529575602,75589847732,208400923746, 1505463570864,4180703306104,30372614867534, 84817986727644,619420989037864,1737266065061962] |