n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 4 |
5 | 8 |
6 | 19 |
7 | 46 |
8 | 118 |
9 | 322 |
10 | 903 |
11 | 2653 |
12 | 8053 |
13 | 25194 |
14 | 81387 |
15 | 269667 |
16 | 917529 |
17 | 3197480 |
18 | 11393821 |
19 | 41497060 |
20 | 154186653 |
21 | 584151512 |
22 | 2254240317 |
23 | 8852998343 |
24 | 35361762709 |
25 | 143540660088 |
26 | 591802631729 |
27 | 2476701062087 |
[1,1,1,2,4,8,19,46,118,322,903,2653,8053,25194, 81387,269667,917529,3197480,11393821,41497060, 154186653,584151512,2254240317,8852998343, 35361762709,143540660088,591802631729, 2476701062087] |