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 | 14741 |
| 2 | 22727 |
| 3 | 23327 |
| 4 | 24547 |
| 5 | 25447 |
| 6 | 27067 |
| 7 | 28277 |
| 8 | 42929 |
| 9 | 63541 |
| 10 | 65761 |
| 11 | 85453 |
| 12 | 1217171 |
| 13 | 1221221 |
| 14 | 1227271 |
| 15 | 1243421 |
| 16 | 1245421 |
| 17 | 1246471 |
| 18 | 1250521 |
| 19 | 1253521 |
| 20 | 1257521 |
| 21 | 1261571 |
| 22 | 1271671 |
| 23 | 1283771 |
| 24 | 1327231 |
| 25 | 1335331 |
| 26 | 1338331 |
| 27 | 1339381 |