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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 58 |
| 4 | 540 |
| 5 | 5331 |
| 6 | 53431 |
| 7 | 536950 |
| 8 | 5398054 |
| 9 | 54271807 |
| 10 | 545661741 |
| 11 | 5486266966 |
| 12 | 55160922390 |
| 13 | 554608293793 |
| 14 | 5576237371961 |
| 15 | 56065559105080 |
| 16 | 563703933481198 |
| 17 | 5667688512287925 |
| 18 | 56985043356898859 |
| 19 | 572948770875456196 |
[1,7,58,540,5331,53431,536950,5398054,54271807, 545661741,5486266966,55160922390,554608293793, 5576237371961,56065559105080,563703933481198, 5667688512287925,56985043356898859, 572948770875456196] |