n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 11 |
3 | 33 |
4 | 103 |
5 | 309 |
6 | 935 |
7 | 2805 |
8 | 8431 |
9 | 25293 |
10 | 75911 |
11 | 227733 |
12 | 683263 |
13 | 2049789 |
14 | 6149495 |
15 | 18448485 |
16 | 55345711 |
17 | 166037133 |
18 | 498111911 |
19 | 1494335733 |
20 | 4483008223 |
21 | 13449024669 |
22 | 40347076055 |
23 | 121041228165 |
24 | 363123688591 |
25 | 1089371065773 |
26 | 3268113205511 |
27 | 9804339616533 |
[1,3,11,33,103,309,935,2805,8431,25293,75911, 227733,683263,2049789,6149495,18448485,55345711, 166037133,498111911,1494335733,4483008223, 13449024669,40347076055,121041228165,363123688591, 1089371065773,3268113205511,9804339616533] |