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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 5 |
| 3 | 8 |
| 4 | 11 |
| 5 | 20 |
| 6 | 38 |
| 7 | 61 |
| 8 | 65 |
| 9 | 71 |
| 10 | 80 |
| 11 | 83 |
| 12 | 93 |
| 13 | 233 |
| 14 | 704 |
| 15 | 1649 |
| 16 | 2909 |
| 17 | 3417 |
| 18 | 3634 |
| 19 | 9371 |
[3,5,8,11,20,38,61,65,71,80,83,93,233,704,1649, 2909,3417,3634,9371] |