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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 16 |
| 3 | 211 |
| 4 | 7675 |
| 5 | 728935 |
| 6 | 159327093 |
| 7 | 90497940567 |
| 8 | 125050630010443 |
| 9 | 420541855354109634 |
| 10 | 3548467633453651525361 |
| 11 | 73505549006944543732634211 |
| 12 | 3751209136697289848938709033475 |
[2,16,211,7675,728935,159327093,90497940567, 125050630010443,420541855354109634, 3548467633453651525361,73505549006944543732634211, 3751209136697289848938709033475] |