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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 89 |
| 3 | 97 |
| 4 | 809 |
| 5 | 907 |
| 6 | 8009 |
| 7 | 8699 |
| 8 | 9697 |
| 9 | 9887 |
| 10 | 81119 |
| 11 | 98887 |
| 12 | 8000009 |
| 13 | 9888887 |
| 14 | 81111119 |
| 15 | 8111111119 |
| 16 | 8666699999 |
| 17 | 9888888887 |
| 18 | 8000000000009 |
| 19 | 9888888888887 |
| 20 | 98888888888888887 |
| 21 | 81111111111111111119 |
| 22 | 800000000000000000009 |
[2,89,97,809,907,8009,8699,9697,9887,81119,98887, 8000009,9888887,81111119,8111111119,8666699999, 9888888887,8000000000009,9888888888887, 98888888888888887,81111111111111111119, 800000000000000000009] |