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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 4 |
| 3 | 5 |
| 4 | 22 |
| 5 | 23 |
| 6 | 82 |
| 7 | 83 |
| 8 | 466 |
| 9 | 467 |
| 10 | 478 |
| 11 | 479 |
| 12 | 1090486 |
| 13 | 1090487 |
| 14 | 1090774 |
| 15 | 1090775 |
| 16 | 1090846 |
| 17 | 1090847 |
| 18 | 1199566 |
| 19 | 1199567 |
[0,1,4,5,22,23,82,83,466,467,478,479,1090486, 1090487,1090774,1090775,1090846,1090847,1199566, 1199567] |