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| n | a(n) |
|---|---|
| 3 | 27 |
| 4 | 121 |
| 5 | 221 |
| 6 | 529 |
| 7 | 1139 |
| 8 | 1369 |
| 9 | 3293 |
| 10 | 6413 |
| 11 | 6707 |
| 12 | 17009 |
| 13 | 17279 |
| 14 | 34207 |
| 15 | 40171 |
| 16 | 75301 |
| 17 | 113423 |
| 18 | 141109 |
| 19 | 203513 |
[27,121,221,529,1139,1369,3293,6413,6707,17009, 17279,34207,40171,75301,113423,141109,203513] |