n | a(n) |
---|---|
8 | 1 |
9 | 8 |
10 | 71 |
11 | 461 |
12 | 2706 |
13 | 14235 |
14 | 70161 |
15 | 327469 |
16 | 1469596 |
17 | 6389144 |
18 | 27097948 |
19 | 112630404 |
20 | 460511702 |
21 | 1857372265 |
22 | 7406424903 |
23 | 29250500171 |
24 | 114576069911 |
25 | 445647539540 |
26 | 1722814022086 |
27 | 6624828067482 |
28 | 25356181172529 |
29 | 96650473757117 |
30 | 367059233827762 |
31 | 1389476976680608 |
[1,8,71,461,2706,14235,70161,327469,1469596, 6389144,27097948,112630404,460511702,1857372265, 7406424903,29250500171,114576069911,445647539540, 1722814022086,6624828067482,25356181172529, 96650473757117,367059233827762,1389476976680608] |