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| n | a(n) |
|---|---|
| 1 | 4 |
| 2 | 8 |
| 3 | 25 |
| 4 | 91 |
| 5 | 115 |
| 6 | 527 |
| 7 | 527 |
| 8 | 1331 |
| 9 | 1331 |
| 10 | 4301 |
| 11 | 15689 |
| 12 | 14111 |
| 13 | 19337 |
| 14 | 31427 |
| 15 | 175151 |
| 16 | 175151 |
| 17 | 175151 |
| 18 | 175151 |
| 19 | 175151 |
[4,8,25,91,115,527,527,1331,1331,4301,15689,14111, 19337,31427,175151,175151,175151,175151,175151] |