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| n | a(n) |
|---|---|
| 2 | 3 |
| 3 | 65 |
| 4 | 7655 |
| 5 | 1636439 |
| 6 | 698775119 |
| 7 | 563569609679 |
| 8 | 511958175765119 |
| 9 | 1027403887481435519 |
| 10 | 4978873338102822009599 |
| 11 | 6474780714695678448940799 |
| 12 | 124391515596257341851985843199 |
| 13 | 375148363707603965517052042828799 |
[3,65,7655,1636439,698775119,563569609679, 511958175765119,1027403887481435519, 4978873338102822009599,6474780714695678448940799, 124391515596257341851985843199, 375148363707603965517052042828799] |