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| n | a(n) |
|---|---|
| 2 | 2047 |
| 3 | 15841 |
| 4 | 800605 |
| 5 | 293609485 |
| 6 | 10761055201 |
| 7 | 5478598723585 |
| 8 | 713808066913201 |
| 9 | 90614118359482705 |
| 10 | 5993318051893040401 |
| 11 | 24325630440506854886701 |
| 12 | 27146803388402594456683201 |
| 13 | 4365221464536367089854499301 |
| 14 | 2162223198751674481689868383601 |
| 15 | 548097717006566233800428685318301 |
[2047,15841,800605,293609485,10761055201, 5478598723585,713808066913201,90614118359482705, 5993318051893040401,24325630440506854886701, 27146803388402594456683201, 4365221464536367089854499301, 2162223198751674481689868383601, 548097717006566233800428685318301] |