n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 5 |
4 | 15 |
5 | 37 |
6 | 111 |
7 | 317 |
8 | 951 |
9 | 2821 |
10 | 8463 |
11 | 25325 |
12 | 75975 |
13 | 227797 |
14 | 683391 |
15 | 2049917 |
16 | 6149751 |
17 | 18448741 |
18 | 55346223 |
[1,3,5,15,37,111,317,951,2821,8463,25325,75975, 227797,683391,2049917,6149751,18448741,55346223] |