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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 7 |
| 3 | 13 |
| 4 | 67 |
| 5 | 97 |
| 6 | 9337 |
| 7 | 28657 |
| 8 | 516157 |
| 9 | 2193637 |
| 10 | 1725215287 |
| 11 | 5858906527 |
| 12 | 10845974467 |
| 13 | 311697041437 |
| 14 | 2748104242057 |
| 15 | 478834469031547 |
| 16 | 30509330585363257 |
[5,7,13,67,97,9337,28657,516157,2193637, 1725215287,5858906527,10845974467,311697041437, 2748104242057,478834469031547,30509330585363257] |