n | a(n) |
---|---|
4 | 1 |
5 | 6 |
6 | 29 |
7 | 130 |
8 | 561 |
9 | 2368 |
10 | 9855 |
11 | 40622 |
12 | 166303 |
13 | 677420 |
14 | 2748952 |
15 | 11122504 |
16 | 44898891 |
17 | 180912196 |
18 | 727866627 |
19 | 2924860426 |
20 | 11741400147 |
21 | 47094376488 |
22 | 188760540056 |
23 | 756125505044 |
24 | 3027303565311 |
25 | 12115171905092 |
26 | 48466474069668 |
[1,6,29,130,561,2368,9855,40622,166303,677420, 2748952,11122504,44898891,180912196,727866627, 2924860426,11741400147,47094376488,188760540056, 756125505044,3027303565311,12115171905092, 48466474069668] |