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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 6 |
| 3 | 66 |
| 4 | 702 |
| 5 | 7350 |
| 6 | 76266 |
| 7 | 786858 |
| 8 | 8086074 |
| 9 | 82848522 |
| 10 | 846886962 |
| 11 | 8640964782 |
[1,6,66,702,7350,76266,786858,8086074,82848522, 846886962,8640964782] |