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 | 20507 |
| 2 | 21107 |
| 3 | 21407 |
| 4 | 21617 |
| 5 | 21817 |
| 6 | 22727 |
| 7 | 23027 |
| 8 | 23227 |
| 9 | 23327 |
| 10 | 23537 |
| 11 | 24137 |
| 12 | 24547 |
| 13 | 24847 |
| 14 | 25147 |
| 15 | 25247 |
| 16 | 25447 |
| 17 | 25657 |
| 18 | 26357 |
| 19 | 27067 |
| 20 | 27367 |
| 21 | 28277 |
| 22 | 42829 |
| 23 | 42929 |
| 24 | 44549 |
| 25 | 45659 |
| 26 | 47269 |
| 27 | 60811 |
| 28 | 62731 |
| 29 | 63131 |
| 30 | 63331 |
| 31 | 63541 |
| 32 | 63841 |
| 33 | 64951 |