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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 6 |
| 3 | 11 |
| 4 | 16 |
| 5 | 61 |
| 6 | 66 |
| 7 | 111 |
| 8 | 116 |
| 9 | 161 |
| 10 | 166 |
| 11 | 611 |
| 12 | 616 |
| 13 | 661 |
| 14 | 666 |
| 15 | 1111 |
| 16 | 1116 |
| 17 | 1161 |
| 18 | 1166 |
| 19 | 1611 |
| 20 | 1616 |
| 21 | 1661 |
| 22 | 1666 |
| 23 | 6111 |
| 24 | 6116 |
| 25 | 6161 |
| 26 | 6166 |
| 27 | 6611 |
| 28 | 6616 |
| 29 | 6661 |
| 30 | 6666 |
| 31 | 11111 |
| 32 | 11116 |
| 33 | 11161 |
| 34 | 11166 |
| 35 | 11611 |
| 36 | 11616 |
| 37 | 11661 |
| 38 | 11666 |
| 39 | 16111 |
| 40 | 16116 |
| 41 | 16161 |
| 42 | 16166 |
| 43 | 16611 |
| 44 | 16616 |
[1,6,11,16,61,66,111,116,161,166,611,616,661,666, 1111,1116,1161,1166,1611,1616,1661,1666,6111,6116, 6161,6166,6611,6616,6661,6666,11111,11116,11161, 11166,11611,11616,11661,11666,16111,16116,16161, 16166,16611,16616] |