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| n | a(n) |
|---|---|
| 1 | 9 |
| 2 | 10 |
| 3 | 89 |
| 4 | 100 |
| 5 | 899 |
| 6 | 900 |
| 7 | 1000 |
| 8 | 8989 |
| 9 | 9000 |
| 10 | 10000 |
| 11 | 30134 |
| 12 | 31624 |
| 13 | 90000 |
| 14 | 95289 |
| 15 | 100000 |
| 16 | 900000 |
| 17 | 953944 |
| 18 | 1000000 |
| 19 | 9000000 |
| 20 | 10000000 |
| 21 | 10044944 |
| 22 | 32880100 |
| 23 | 90000000 |
| 24 | 100000000 |
| 25 | 900000000 |
| 26 | 1000000000 |
| 27 | 3328800100 |
| 28 | 9000000000 |
[9,10,89,100,899,900,1000,8989,9000,10000,30134, 31624,90000,95289,100000,900000,953944,1000000, 9000000,10000000,10044944,32880100,90000000, 100000000,900000000,1000000000,3328800100, 9000000000] |