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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 7 |
| 2 | 115 |
| 3 | 1366 |
| 4 | 13561 |
| 5 | 135178 |
| 6 | 1351546 |
| 7 | 13546438 |
| 8 | 135481777 |
| 9 | 1354575715 |
[2,7,115,1366,13561,135178,1351546,13546438, 135481777,1354575715] |