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| n | a(n) |
|---|---|
| 1 | 78 |
| 2 | 780 |
| 3 | 8778 |
| 4 | 887778 |
| 5 | 88877778 |
| 6 | 870800778 |
| 7 | 7007800078 |
| 8 | 8008780080 |
| 9 | 8888777778 |
| 10 | 770800800078 |
| 11 | 888887777778 |
| 12 | 70870887770880 |
| 13 | 88888877777778 |
| 14 | 7808778880700878 |
| 15 | 8888888777777778 |
| 16 | 888888887777777778 |
| 17 | 70888000778807080078 |
| 18 | 88888888877777777778 |
[78,780,8778,887778,88877778,870800778,7007800078, 8008780080,8888777778,770800800078,888887777778, 70870887770880,88888877777778,7808778880700878, 8888888777777778,888888887777777778, 70888000778807080078,88888888877777777778] |