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| n | a(n) |
|---|---|
| 1 | 27000 |
| 2 | 1069400 |
| 3 | 44878810 |
| 4 | 1878758740 |
| 5 | 78704951512 |
| 6 | 3297669520142 |
| 7 | 138204642567680 |
| 8 | 5791515989673804 |
| 9 | 242710135725239668 |
| 10 | 10171279006748889244 |
| 11 | 426252400904323368342 |
| 12 | 17863104607113877927270 |
[27000,1069400,44878810,1878758740,78704951512, 3297669520142,138204642567680,5791515989673804, 242710135725239668,10171279006748889244, 426252400904323368342,17863104607113877927270] |