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 | 422 |
| 2 | 1355 |
| 3 | 4074 |
| 4 | 5460 |
| 5 | 31242 |
| 6 | 329316 |
| 7 | 353648 |
| 8 | 1038255 |
| 9 | 1246060 |
| 10 | 1440679 |
| 11 | 4593664 |
| 12 | 6382389 |
| 13 | 6669205 |
| 14 | 6773694 |
| 15 | 8748381 |
| 16 | 9343041 |
| 17 | 10085055 |
| 18 | 10711252 |
| 19 | 10819136 |
| 20 | 12181959 |
| 21 | 12804411 |
| 22 | 13683806 |
| 23 | 14044105 |
| 24 | 15616253 |
| 25 | 19232028 |
| 26 | 20795482 |
| 27 | 21014272 |
| 28 | 25076295 |
| 29 | 26366476 |
| 30 | 27457318 |