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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 4 |
| 6 | 5 |
| 7 | 6 |
| 8 | 7 |
| 9 | 8 |
| 10 | 9 |
| 11 | 99 |
| 12 | 999 |
| 13 | 3333 |
| 14 | 6666 |
| 15 | 9999 |
| 16 | 99999 |
| 17 | 999999 |
| 18 | 3333333 |
| 19 | 6666666 |
| 20 | 9999999 |
| 21 | 99999999 |
| 22 | 999999999 |
| 23 | 1111111111 |
| 24 | 2222222222 |
| 25 | 3333333333 |
| 26 | 4444444444 |
| 27 | 5555555555 |
| 28 | 6666666666 |
| 29 | 7777777777 |
| 30 | 8888888888 |
| 31 | 9999999999 |
| 32 | 99999999999 |
| 33 | 999999999999 |
| 34 | 3333333333333 |
| 35 | 6666666666666 |
| 36 | 9999999999999 |
[0,1,2,3,4,5,6,7,8,9,99,999,3333,6666,9999,99999, 999999,3333333,6666666,9999999,99999999,999999999, 1111111111,2222222222,3333333333,4444444444, 5555555555,6666666666,7777777777,8888888888, 9999999999,99999999999,999999999999,3333333333333, 6666666666666,9999999999999] |