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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 6 |
| 2 | 6 |
| 3 | 6 |
| 4 | 6 |
| 5 | 6 |
| 6 | -2 |
| 7 | 6 |
| 8 | 2 |
| 9 | -2 |
| 10 | 2 |
| 11 | 6 |
| 12 | 6 |
| 13 | -6 |
| 14 | -6 |
| 15 | -18 |
| 16 | -18 |
| 17 | -14 |
| 18 | -14 |
| 19 | -18 |
| 20 | -18 |
| 21 | -22 |
[2,6,6,6,6,6,-2,6,2,-2,2,6,6,-6,-6,-18,-18,-14, -14,-18,-18,-22] |