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| n | a(n) |
|---|---|
| 1 | 11 |
| 2 | 199 |
| 3 | 1777 |
| 4 | 137373737 |
| 5 | 199999 |
| 6 | 1131313131313 |
| 7 | 19999999 |
| 8 | 14747474747474747 |
| 9 | 1777777777 |
| 10 | 113131313131313131313 |
| 11 | 11111111111111111111111 |
| 12 | 1171717171717171717171717 |
| 13 | 17777777777777 |
| 14 | 18787878787878787878787878787 |
| 15 | 1333333333333333 |
[11,199,1777,137373737,199999,1131313131313, 19999999,14747474747474747,1777777777, 113131313131313131313,11111111111111111111111, 1171717171717171717171717,17777777777777, 18787878787878787878787878787,1333333333333333] |