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 | 919 |
| 6 | 31513 |
| 7 | 1008001 |
| 8 | 1123211 |
| 9 | 1160611 |
| 10 | 1268621 |
| 11 | 1286821 |
| 12 | 1311131 |
| 13 | 1317131 |
| 14 | 1412141 |
| 15 | 1628261 |
| 16 | 1802081 |
| 17 | 1826281 |
| 18 | 3187813 |
| 19 | 3228223 |
| 20 | 3245423 |
| 21 | 3286823 |
| 22 | 3291923 |
| 23 | 3362633 |
| 24 | 3528253 |
| 25 | 3591953 |
| 26 | 3765673 |
| 27 | 3773773 |
| 28 | 3781873 |