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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 9 |
| 3 | 45 |
| 4 | 55 |
| 5 | 99 |
| 6 | 297 |
| 7 | 703 |
| 8 | 999 |
| 9 | 2223 |
| 10 | 2728 |
| 11 | 4950 |
| 12 | 5050 |
| 13 | 7272 |
| 14 | 7777 |
| 15 | 9999 |
| 16 | 17344 |
| 17 | 22222 |
| 18 | 77778 |
| 19 | 82656 |
| 20 | 95121 |
| 21 | 99999 |
| 22 | 142857 |
| 23 | 148149 |
| 24 | 181819 |
| 25 | 187110 |
| 26 | 208495 |
| 27 | 318682 |
| 28 | 329967 |
| 29 | 351352 |
| 30 | 356643 |
| 31 | 390313 |
| 32 | 461539 |
| 33 | 466830 |
| 34 | 499500 |
| 35 | 500500 |
| 36 | 533170 |
| 37 | 538461 |
| 38 | 609687 |
| 39 | 643357 |
[1,9,45,55,99,297,703,999,2223,2728,4950,5050, 7272,7777,9999,17344,22222,77778,82656,95121, 99999,142857,148149,181819,187110,208495,318682, 329967,351352,356643,390313,461539,466830,499500, 500500,533170,538461,609687,643357] |