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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 13 |
| 5 | 313 |
| 6 | 101 |
| 7 | 181 |
| 8 | 5419 |
| 9 | 21523361 |
| 10 | 52579 |
| 11 | 212601841 |
| 12 | 57154490053 |
| 13 | 815702161 |
| 14 | 100621 |
| 15 | 4454215139669 |
| 16 | 4562284561 |
| 17 | 52548582913 |
| 18 | 1895634885375961 |
| 19 | 211573 |
| 20 | 2272727294381 |
| 21 | 415710882920521 |
| 22 | 9299179 |
| 23 | 1853387306082786629 |
| 24 | 22496867303759173834520497 |
[2,3,5,13,313,101,181,5419,21523361,52579, 212601841,57154490053,815702161,100621, 4454215139669,4562284561,52548582913, 1895634885375961,211573,2272727294381, 415710882920521,9299179,1853387306082786629, 22496867303759173834520497] |