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| n | a(n) |
|---|---|
| 1 | 53 |
| 2 | 503 |
| 3 | 5003 |
| 4 | 500000003 |
| 5 | 5000000000000000003 |
| 6 | 500000000000000000003 |
| 7 | 50000000000000000000000000000003 |
| 8 | 5000000000000000000000000000000000000000003 |
[53,503,5003,500000003,5000000000000000003, 500000000000000000003, 50000000000000000000000000000003, 5000000000000000000000000000000000000000003] |