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| n | a(n) |
|---|---|
| 1 | 79 |
| 2 | 269 |
| 3 | 1249 |
| 4 | 5119 |
| 5 | 13309 |
| 6 | 33749 |
| 7 | 79999 |
| 8 | 138239 |
| 9 | 175759 |
| 10 | 243889 |
| 11 | 548719 |
| 12 | 851839 |
| 13 | 911249 |
| 14 | 1105919 |
| 15 | 1249999 |
| 16 | 2053789 |
| 17 | 3285089 |
| 18 | 3732479 |
| 19 | 5927039 |
| 20 | 8573749 |
| 21 | 8847359 |
| 22 | 10612079 |
| 23 | 11248639 |
| 24 | 18158479 |
| 25 | 22999679 |
| 26 | 26280719 |
| 27 | 27439999 |
| 28 | 29242069 |
[79,269,1249,5119,13309,33749,79999,138239,175759, 243889,548719,851839,911249,1105919,1249999, 2053789,3285089,3732479,5927039,8573749,8847359, 10612079,11248639,18158479,22999679,26280719, 27439999,29242069] |