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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 5 |
| 3 | 7 |
| 4 | 3 |
| 5 | 17 |
| 6 | 11 |
| 7 | 23 |
| 8 | 89 |
| 9 | 271 |
| 10 | 457 |
| 11 | 967 |
| 12 | 4049 |
| 13 | 181 |
| 14 | 8641 |
| 15 | 7193 |
| 16 | 2603047 |
| 17 | 68476319 |
| 18 | 335257649 |
| 19 | 5554901257 |
| 20 | 31797598073 |
| 21 | 23369856751 |
| 22 | 77031318395801969 |
| 23 | 3293187233103900007 |
| 24 | 637758902554659731714245315207 |
[3,5,7,3,17,11,23,89,271,457,967,4049,181,8641, 7193,2603047,68476319,335257649,5554901257, 31797598073,23369856751,77031318395801969, 3293187233103900007, 637758902554659731714245315207] |