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| n | a(n) |
|---|---|
| 1 | 10009 |
| 2 | 1000999 |
| 3 | 10009999999999 |
| 4 | 10009999999999999999999999999999999999 |
| 5 | 10009999999999999999999999999999999999999999999999999999999999999 |
| 6 | 10009999999999999999999999999999999999999999999999999999999999999999999999999 |
[10009,1000999,10009999999999, 10009999999999999999999999999999999999, 10009999999999999999999999999999999999999999999999\ 999999999999999, 10009999999999999999999999999999999999999999999999\ 999999999999999999999999999] |