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| n | a(n) |
|---|---|
| 1 | 478 |
| 2 | 487 |
| 3 | 748 |
| 4 | 784 |
| 5 | 847 |
| 6 | 874 |
| 7 | 1478 |
| 8 | 1487 |
| 9 | 1748 |
| 10 | 1784 |
| 11 | 1847 |
| 12 | 1874 |
| 13 | 2278 |
| 14 | 2287 |
| 15 | 2447 |
| 16 | 2474 |
| 17 | 2728 |
| 18 | 2744 |
| 19 | 2782 |
| 20 | 2827 |
| 21 | 2872 |
| 22 | 4078 |
| 23 | 4087 |
| 24 | 4178 |
| 25 | 4187 |
| 26 | 4247 |
| 27 | 4274 |
| 28 | 4427 |
| 29 | 4472 |
| 30 | 4708 |
| 31 | 4718 |
| 32 | 4724 |
| 33 | 4742 |
| 34 | 4780 |
| 35 | 4781 |
| 36 | 4807 |
| 37 | 4817 |
| 38 | 4870 |
| 39 | 4871 |
| 40 | 5788 |
| 41 | 5878 |
| 42 | 5887 |
| 43 | 7048 |
| 44 | 7084 |
| 45 | 7148 |
| 46 | 7184 |
| 47 | 7228 |
[478,487,748,784,847,874,1478,1487,1748,1784,1847, 1874,2278,2287,2447,2474,2728,2744,2782,2827,2872, 4078,4087,4178,4187,4247,4274,4427,4472,4708,4718, 4724,4742,4780,4781,4807,4817,4870,4871,5788,5878, 5887,7048,7084,7148,7184,7228] |