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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 83 |
| 3 | 883 |
| 4 | 8883 |
| 5 | 88883 |
| 6 | 888883 |
| 7 | 8888883 |
| 8 | 88888883 |
| 9 | 888888883 |
| 10 | 8888888883 |
| 11 | 88888888883 |
| 12 | 888888888883 |
| 13 | 8888888888883 |
| 14 | 88888888888883 |
| 15 | 888888888888883 |
| 16 | 8888888888888883 |
| 17 | 88888888888888883 |
| 18 | 888888888888888883 |
| 19 | 8888888888888888883 |
| 20 | 88888888888888888883 |
| 21 | 888888888888888888883 |
[3,83,883,8883,88883,888883,8888883,88888883, 888888883,8888888883,88888888883,888888888883, 8888888888883,88888888888883,888888888888883, 8888888888888883,88888888888888883, 888888888888888883,8888888888888888883, 88888888888888888883,888888888888888888883] |