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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 83 |
| 2 | 881 |
| 3 | 8887 |
| 4 | 88883 |
| 5 | 888887 |
| 6 | 88888817 |
| 7 | 88888883 |
| 8 | 888888883 |
| 9 | 88888888801 |
| 10 | 888888888859 |
| 11 | 888888888887 |
| 12 | 88888888888873 |
| 13 | 88888888888889 |
| 14 | 888888888888883 |
| 15 | 88888888888888801 |
| 16 | 88888888888888889 |
| 17 | 8888888888888888813 |
| 18 | 8888888888888888881 |
| 19 | 888888888888888888857 |
[2,83,881,8887,88883,888887,88888817,88888883, 888888883,88888888801,888888888859,888888888887, 88888888888873,88888888888889,888888888888883, 88888888888888801,88888888888888889, 8888888888888888813,8888888888888888881, 888888888888888888857] |