n | a(n) |
---|---|
5 | 12 |
6 | 30 |
7 | 150 |
8 | 633 |
9 | 3260 |
10 | 16212 |
11 | 66810 |
12 | 298495 |
13 | 1410402 |
14 | 6403842 |
15 | 31103899 |
16 | 135342046 |
17 | 633228696 |
18 | 2936824916 |
19 | 13676037486 |
20 | 65355191817 |
21 | 298065986582 |
22 | 1398226666434 |
23 | 6585151203697 |
24 | 30958838054304 |
25 | 148994847644780 |
[12,30,150,633,3260,16212,66810,298495,1410402, 6403842,31103899,135342046,633228696,2936824916, 13676037486,65355191817,298065986582, 1398226666434,6585151203697,30958838054304, 148994847644780] |