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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 66 |
| 3 | 67 |
| 4 | 68 |
| 5 | 69 |
| 6 | 76 |
| 7 | 86 |
| 8 | 96 |
| 9 | 666 |
| 10 | 667 |
| 11 | 668 |
| 12 | 669 |
| 13 | 676 |
| 14 | 677 |
| 15 | 678 |
| 16 | 679 |
| 17 | 686 |
| 18 | 687 |
| 19 | 688 |
| 20 | 689 |
| 21 | 696 |
| 22 | 697 |
| 23 | 698 |
| 24 | 699 |
| 25 | 766 |
| 26 | 767 |
| 27 | 768 |
| 28 | 769 |
| 29 | 776 |
| 30 | 786 |
| 31 | 796 |
| 32 | 866 |
| 33 | 867 |
| 34 | 868 |
| 35 | 869 |
| 36 | 876 |
| 37 | 886 |
| 38 | 896 |
| 39 | 966 |
| 40 | 967 |
| 41 | 968 |
| 42 | 969 |
| 43 | 976 |
| 44 | 986 |
| 45 | 996 |
| 46 | 6666 |
| 47 | 6667 |
| 48 | 6668 |
| 49 | 6669 |
| 50 | 6676 |
| 51 | 6677 |
| 52 | 6678 |
[6,66,67,68,69,76,86,96,666,667,668,669,676,677, 678,679,686,687,688,689,696,697,698,699,766,767, 768,769,776,786,796,866,867,868,869,876,886,896, 966,967,968,969,976,986,996,6666,6667,6668,6669, 6676,6677,6678] |