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| n | a(n) |
|---|---|
| 0 | 3 |
| 1 | 3 |
| 2 | 3 |
| 3 | 13 |
| 4 | 3 |
| 5 | 3 |
| 6 | 3 |
| 7 | 113 |
| 8 | 331 |
| 9 | 3631 |
| 10 | 827 |
| 11 | 3109 |
| 12 | 4253 |
| 13 | 7487 |
| 14 | 71 |
[3,3,3,13,3,3,3,113,331,3631,827,3109,4253,7487, 71] |