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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 11 |
| 6 | 13 |
| 7 | 17 |
| 8 | 107 |
| 9 | 197 |
| 10 | 3293 |
| 11 | 74057 |
| 12 | 1124491 |
| 13 | 1225063003 |
| 14 | 48403915086083 |
| 15 | 229199690093487791653 |
| 16 | 139394989871393443893426292667 |
| 17 | 2310767115930351361890156080500119173238113 |
| 18 | 521722354210765171422123515738862106081757768167379798858040637 |
[2,3,5,7,11,13,17,107,197,3293,74057,1124491, 1225063003,48403915086083,229199690093487791653, 139394989871393443893426292667, 2310767115930351361890156080500119173238113, 52172235421076517142212351573886210608175776816737\ 9798858040637] |