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| n | a(n) |
|---|---|
| 1 | 14 |
| 2 | 196 |
| 3 | 966 |
| 4 | 4761 |
| 5 | 32775 |
| 6 | 225625 |
| 7 | 1369900 |
| 8 | 8317456 |
| 9 | 52895444 |
| 10 | 336392281 |
| 11 | 2102483853 |
| 12 | 13140724689 |
| 13 | 82666212354 |
| 14 | 520040015044 |
| 15 | 3263532374278 |
| 16 | 20480430831961 |
| 17 | 128643137927197 |
| 18 | 808042422131569 |
| 19 | 5073797510995256 |
[14,196,966,4761,32775,225625,1369900,8317456, 52895444,336392281,2102483853,13140724689, 82666212354,520040015044,3263532374278, 20480430831961,128643137927197,808042422131569, 5073797510995256] |