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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 540 |
| 3 | 5940 |
| 4 | 54540 |
| 5 | 59940 |
| 6 | 540540 |
| 7 | 599940 |
| 8 | 5400540 |
| 9 | 5454540 |
| 10 | 5945940 |
| 11 | 5999940 |
| 12 | 54000540 |
| 13 | 54594540 |
| 14 | 59405940 |
| 15 | 59999940 |
| 16 | 540000540 |
| 17 | 540540540 |
| 18 | 545454540 |
| 19 | 545994540 |
| 20 | 594005940 |
| 21 | 594545940 |
| 22 | 599459940 |
| 23 | 599999940 |
| 24 | 5400000540 |
| 25 | 5405940540 |
| 26 | 5454054540 |
| 27 | 5459994540 |
| 28 | 5940005940 |
| 29 | 5945945940 |
| 30 | 5994059940 |
| 31 | 5999999940 |
[0,540,5940,54540,59940,540540,599940,5400540, 5454540,5945940,5999940,54000540,54594540, 59405940,59999940,540000540,540540540,545454540, 545994540,594005940,594545940,599459940,599999940, 5400000540,5405940540,5454054540,5459994540, 5940005940,5945945940,5994059940,5999999940] |