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| n | a(n) |
|---|---|
| 0 | 9 |
| 1 | 898 |
| 2 | 88988 |
| 3 | 8889888 |
| 4 | 888898888 |
| 5 | 88888988888 |
| 6 | 8888889888888 |
| 7 | 888888898888888 |
| 8 | 88888888988888888 |
| 9 | 8888888889888888888 |
| 10 | 888888888898888888888 |
| 11 | 88888888888988888888888 |
| 12 | 8888888888889888888888888 |
| 13 | 888888888888898888888888888 |
| 14 | 88888888888888988888888888888 |
| 15 | 8888888888888889888888888888888 |
[9,898,88988,8889888,888898888,88888988888, 8888889888888,888888898888888,88888888988888888, 8888888889888888888,888888888898888888888, 88888888888988888888888,8888888888889888888888888, 888888888888898888888888888, 88888888888888988888888888888, 8888888888888889888888888888888] |