| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 10 |
| 3 | 512 |
| 4 | 115975 |
| 5 | 26780972 |
| 6 | 3851458088 |
| 7 | 329518779600 |
| 8 | 17824974050808 |
| 9 | 655264935972190 |
| 10 | 17429225215357484 |
| 11 | 352948154052188478 |
| 12 | 5667546539054689443 |
| 13 | 74561538032148504662 |
| 14 | 825178947144750263648 |
[2,10,512,115975,26780972,3851458088,329518779600, 17824974050808,655264935972190,17429225215357484, 352948154052188478,5667546539054689443, 74561538032148504662,825178947144750263648] |