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| n | a(n) |
|---|---|
| 1 | 11 |
| 2 | 22 |
| 3 | 33 |
| 4 | 44 |
| 5 | 55 |
| 6 | 66 |
| 7 | 77 |
| 8 | 88 |
| 9 | 99 |
| 10 | 505 |
| 11 | 550 |
| 12 | 5005 |
| 13 | 5050 |
| 14 | 5500 |
| 15 | 5555 |
| 16 | 50005 |
| 17 | 50050 |
| 18 | 50500 |
| 19 | 50555 |
| 20 | 55000 |
| 21 | 55055 |
| 22 | 55505 |
| 23 | 55550 |
| 24 | 500005 |
| 25 | 500050 |
| 26 | 500500 |
| 27 | 500555 |
| 28 | 505000 |
| 29 | 505055 |
| 30 | 505505 |
| 31 | 505550 |
| 32 | 550000 |
| 33 | 550055 |
| 34 | 550505 |
| 35 | 550550 |
| 36 | 555005 |
| 37 | 555050 |
| 38 | 555500 |
| 39 | 555555 |
| 40 | 1111116 |
[11,22,33,44,55,66,77,88,99,505,550,5005,5050, 5500,5555,50005,50050,50500,50555,55000,55055, 55505,55550,500005,500050,500500,500555,505000, 505055,505505,505550,550000,550055,550505,550550, 555005,555050,555500,555555,1111116] |