n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 11 |
3 | 41 |
4 | 151 |
5 | 557 |
6 | 2055 |
7 | 7581 |
8 | 27967 |
9 | 103173 |
10 | 380615 |
11 | 1404125 |
12 | 5179951 |
13 | 19109333 |
14 | 70496151 |
15 | 260067021 |
16 | 959412031 |
17 | 3539362437 |
18 | 13057045415 |
19 | 48168685181 |
20 | 177698871247 |
21 | 655548074933 |
22 | 2418379337655 |
23 | 8921631905325 |
24 | 32912750541151 |
25 | 121418274109413 |
[1,3,11,41,151,557,2055,7581,27967,103173,380615, 1404125,5179951,19109333,70496151,260067021, 959412031,3539362437,13057045415,48168685181, 177698871247,655548074933,2418379337655, 8921631905325,32912750541151,121418274109413] |