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| n | a(n) |
|---|---|
| 1 | 9 |
| 2 | 10 |
| 3 | 3390 |
| 4 | 38589 |
| 5 | 12453549 |
| 6 | 3080826336474 |
| 7 | 298253071929010 |
| 8 | 33089502135135685 |
[9,10,3390,38589,12453549,3080826336474, 298253071929010,33089502135135685] |