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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 12 |
| 3 | 551 |
| 4 | 49223 |
| 5 | 10022877 |
| 6 | 4814973856 |
| 7 | 5473507216675 |
| 8 | 14733719538503109 |
| 9 | 93906982953302482787 |
| 10 | 1417227544717910923643049 |
[0,12,551,49223,10022877,4814973856,5473507216675, 14733719538503109,93906982953302482787, 1417227544717910923643049] |