n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 9 |
4 | 27 |
5 | 83 |
6 | 259 |
7 | 811 |
8 | 2541 |
9 | 7963 |
10 | 24957 |
11 | 78221 |
12 | 245165 |
13 | 768413 |
14 | 2408415 |
15 | 7548629 |
16 | 23659463 |
17 | 74155215 |
18 | 232422687 |
19 | 728476151 |
20 | 2283243129 |
21 | 7156307287 |
22 | 22429820697 |
23 | 70301181369 |
24 | 220343094521 |
25 | 690615411545 |
26 | 2164577236699 |
[1,1,3,9,27,83,259,811,2541,7963,24957,78221, 245165,768413,2408415,7548629,23659463,74155215, 232422687,728476151,2283243129,7156307287, 22429820697,70301181369,220343094521,690615411545, 2164577236699] |