n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 12 |
5 | 36 |
6 | 113 |
7 | 351 |
8 | 1080 |
9 | 3281 |
10 | 9882 |
11 | 29646 |
12 | 88817 |
13 | 266085 |
14 | 797526 |
15 | 2391485 |
16 | 7173360 |
17 | 21520080 |
18 | 64563521 |
19 | 193700403 |
20 | 581120892 |
21 | 1743392201 |
22 | 5230206126 |
23 | 15690618378 |
24 | 47071766561 |
25 | 141215033961 |
26 | 423644570442 |
27 | 1270932914165 |
28 | 3812797945332 |
29 | 11438393835996 |
[1,1,2,5,12,36,113,351,1080,3281,9882,29646,88817, 266085,797526,2391485,7173360,21520080,64563521, 193700403,581120892,1743392201,5230206126, 15690618378,47071766561,141215033961,423644570442, 1270932914165,3812797945332,11438393835996] |