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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 9 |
| 4 | 13 |
| 5 | 17 |
| 6 | 89 |
| 7 | 161 |
| 8 | 233 |
| 9 | 305 |
| 10 | 1597 |
| 11 | 2889 |
| 12 | 4181 |
| 13 | 5473 |
| 14 | 28657 |
| 15 | 51841 |
| 16 | 75025 |
| 17 | 98209 |
| 18 | 514229 |
| 19 | 930249 |
| 20 | 1346269 |
| 21 | 1762289 |
| 22 | 9227465 |
| 23 | 16692641 |
| 24 | 24157817 |
| 25 | 31622993 |
| 26 | 165580141 |
| 27 | 299537289 |
| 28 | 433494437 |
| 29 | 567451585 |
| 30 | 2971215073 |
| 31 | 5374978561 |
[1,5,9,13,17,89,161,233,305,1597,2889,4181,5473, 28657,51841,75025,98209,514229,930249,1346269, 1762289,9227465,16692641,24157817,31622993, 165580141,299537289,433494437,567451585, 2971215073,5374978561] |