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| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 81 |
| 3 | 748 |
| 4 | 7070 |
| 5 | 67070 |
| 6 | 636852 |
| 7 | 6048836 |
| 8 | 57457232 |
| 9 | 545796112 |
| 10 | 5184660760 |
| 11 | 49250608992 |
| 12 | 467846412016 |
| 13 | 4444215843808 |
| 14 | 42216967044320 |
| 15 | 401031909830432 |
| 16 | 3809525073635904 |
| 17 | 36187846859821376 |
| 18 | 343759454672598656 |
[8,81,748,7070,67070,636852,6048836,57457232, 545796112,5184660760,49250608992,467846412016, 4444215843808,42216967044320,401031909830432, 3809525073635904,36187846859821376, 343759454672598656] |