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| n | a(n) |
|---|---|
| 1 | 9 |
| 2 | 73 |
| 3 | 868 |
| 4 | 9373 |
| 5 | 107655 |
| 6 | 1220630 |
| 7 | 14056707 |
| 8 | 162042137 |
| 9 | 1874230689 |
| 10 | 21698542215 |
| 11 | 251403042154 |
| 12 | 2913819348602 |
| 13 | 33779087426950 |
| 14 | 391635814747885 |
| 15 | 4540933400612193 |
| 16 | 52653016886940873 |
| 17 | 610534294176601038 |
[9,73,868,9373,107655,1220630,14056707,162042137, 1874230689,21698542215,251403042154,2913819348602, 33779087426950,391635814747885,4540933400612193, 52653016886940873,610534294176601038] |