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A173228 as a simple table
| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 24 |
| 3 | 249 |
| 4 | 2499 |
| 5 | 24999 |
| 6 | 249998 |
| 7 | 2499999 |
| 8 | 24999999 |
| 9 | 249999998 |
| 10 | 2499999997 |
| 11 | 24999999997 |
| 12 | 249999999997 |
| 13 | 2499999999997 |
| 14 | 24999999999998 |
| 15 | 249999999999997 |
| 16 | 2499999999999996 |
| 17 | 24999999999999995 |
| 18 | 249999999999999995 |
| 19 | 2499999999999999995 |
| 20 | 24999999999999999996 |
[2,24,249,2499,24999,249998,2499999,24999999, 249999998,2499999997,24999999997,249999999997, 2499999999997,24999999999998,249999999999997, 2499999999999996,24999999999999995, 249999999999999995,2499999999999999995, 24999999999999999996] |