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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 11 |
| 6 | 353 |
| 7 | 787 |
| 8 | 94049 |
| 9 | 98689 |
| 10 | 190080091 |
| 11 | 3405684865043 |
| 12 | 397922151229793 |
[2,3,5,7,11,353,787,94049,98689,190080091, 3405684865043,397922151229793] |