n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 13 |
4 | 41 |
5 | 129 |
6 | 406 |
7 | 1278 |
8 | 4023 |
9 | 12664 |
10 | 39865 |
11 | 125491 |
12 | 395033 |
13 | 1243524 |
14 | 3914488 |
15 | 12322413 |
16 | 38789712 |
17 | 122106097 |
18 | 384377665 |
19 | 1209982081 |
20 | 3808901426 |
21 | 11990037126 |
22 | 37743426307 |
23 | 118812495276 |
24 | 374009739309 |
25 | 1177344897715 |
[1,1,4,13,41,129,406,1278,4023,12664,39865,125491, 395033,1243524,3914488,12322413,38789712, 122106097,384377665,1209982081,3808901426, 11990037126,37743426307,118812495276,374009739309, 1177344897715] |