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| n | a(n) |
|---|---|
| 1 | 888888883 |
| 2 | 888888887 |
| 3 | 8488888883 |
| 4 | 8688888889 |
| 5 | 8838888881 |
| 6 | 8868888887 |
| 7 | 8880888883 |
| 8 | 8885888881 |
| 9 | 8886888889 |
| 10 | 8888088889 |
| 11 | 8888488883 |
| 12 | 8888808881 |
| 13 | 8888818889 |
| 14 | 8888838887 |
| 15 | 8888848889 |
| 16 | 8888868881 |
| 17 | 8888868889 |
| 18 | 8888880881 |
[888888883,888888887,8488888883,8688888889, 8838888881,8868888887,8880888883,8885888881, 8886888889,8888088889,8888488883,8888808881, 8888818889,8888838887,8888848889,8888868881, 8888868889,8888880881] |