The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 5 |
| 3 | 7 |
| 4 | 11 |
| 5 | 13 |
| 6 | 17 |
| 7 | 19 |
| 8 | 23 |
| 9 | 29 |
| 10 | 31 |
| 11 | 37 |
| 12 | 41 |
| 13 | 43 |
| 14 | 53 |
| 15 | 2539 |
| 16 | 936599 |
| 17 | 127852322431 |
| 18 | 510819260848900502567 |
| 19 | 1553192364608434843485965159509450536731 |
| 20 | 52119893982548112392303882371161186032080710958633917215400463948724068502699 |
[3,5,7,11,13,17,19,23,29,31,37,41,43,53,2539, 936599,127852322431,510819260848900502567, 1553192364608434843485965159509450536731, 52119893982548112392303882371161186032080710958633\ 917215400463948724068502699] |