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| n | a(n) |
|---|---|
| 1 | 89 |
| 2 | 98 |
| 3 | 189 |
| 4 | 198 |
| 5 | 289 |
| 6 | 298 |
| 7 | 389 |
| 8 | 398 |
| 9 | 489 |
| 10 | 498 |
| 11 | 589 |
| 12 | 598 |
| 13 | 689 |
| 14 | 698 |
| 15 | 789 |
| 16 | 798 |
| 17 | 899 |
| 18 | 989 |
| 19 | 998 |
| 20 | 1089 |
| 21 | 1098 |
| 22 | 1189 |
| 23 | 1198 |
| 24 | 1289 |
| 25 | 1298 |
| 26 | 1389 |
| 27 | 1398 |
| 28 | 1489 |
| 29 | 1498 |
| 30 | 1589 |
| 31 | 1598 |
| 32 | 1689 |
| 33 | 1698 |
| 34 | 1789 |
| 35 | 1798 |
| 36 | 1899 |
| 37 | 1989 |
| 38 | 1998 |
| 39 | 2089 |
| 40 | 2098 |
| 41 | 2189 |
[89,98,189,198,289,298,389,398,489,498,589,598, 689,698,789,798,899,989,998,1089,1098,1189,1198, 1289,1298,1389,1398,1489,1498,1589,1598,1689,1698, 1789,1798,1899,1989,1998,2089,2098,2189] |