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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 6 |
| 3 | 66 |
| 4 | 171 |
| 5 | 666 |
| 6 | 1176 |
| 7 | 1711 |
| 8 | 17766 |
| 9 | 61776 |
| 10 | 67161 |
| 11 | 166176 |
| 12 | 617716 |
| 13 | 7767711 |
| 14 | 61677171 |
| 15 | 77171676 |
| 16 | 161667171 |
| 17 | 166777716 |
| 18 | 611677776 |
| 19 | 66767167176 |
| 20 | 77111161116 |
| 21 | 171676611666 |
| 22 | 617617761166 |
| 23 | 1116177116671 |
| 24 | 161776717667666676 |
| 25 | 1116166667661771771 |
| 26 | 6667177116611677771 |
[1,6,66,171,666,1176,1711,17766,61776,67161, 166176,617716,7767711,61677171,77171676,161667171, 166777716,611677776,66767167176,77111161116, 171676611666,617617761166,1116177116671, 161776717667666676,1116166667661771771, 6667177116611677771] |