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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 3 |
| 4 | 27 |
| 5 | 27 |
| 6 | 27 |
| 7 | 9 |
| 8 | 567 |
| 9 | 567 |
| 10 | 567 |
| 11 | 567 |
| 12 | 891 |
| 13 | 891 |
| 14 | 297 |
| 15 | 297 |
[1,3,3,27,27,27,9,567,567,567,567,891,891,297,297] |