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| n | a(n) |
|---|---|
| 2 | 97 |
| 3 | 991 |
| 4 | 9941 |
| 5 | 99881 |
| 6 | 999983 |
| 7 | 9999971 |
| 8 | 99999643 |
| 9 | 999999761 |
| 10 | 9999999511 |
| 11 | 99999999977 |
| 12 | 999999998863 |
| 13 | 9999999998633 |
| 14 | 99999999998333 |
| 15 | 999999999999877 |
| 16 | 9999999999998633 |
| 17 | 99999999999987443 |
| 18 | 999999999999999331 |
| 19 | 9999999999999988633 |
| 20 | 99999999999999999631 |
[97,991,9941,99881,999983,9999971,99999643, 999999761,9999999511,99999999977,999999998863, 9999999998633,99999999998333,999999999999877, 9999999999998633,99999999999987443, 999999999999999331,9999999999999988633, 99999999999999999631] |