This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 3 |
| 3 | 5 |
| 4 | 7 |
| 5 | 11 |
| 6 | 71 |
| 7 | 107 |
| 8 | 139 |
| 9 | 311 |
| 10 | 607 |
| 11 | 2309 |
| 12 | 5881 |
| 13 | 7681 |
| 14 | 8779 |
| 15 | 56929 |
| 16 | 74357 |
| 17 | 84979 |
| 18 | 4667387 |
| 19 | 5334157 |
| 20 | 20276141 |
| 21 | 26483123 |
| 22 | 2171218163 |
| 23 | 10779703787 |
| 24 | 9776786310757 |
| 25 | 48539968117013 |
| 26 | 108156137341297 |