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 | 2309 |
| 2 | 9239 |
| 3 | 11549 |
| 4 | 25409 |
| 5 | 34649 |
| 6 | 43889 |
| 7 | 55439 |
| 8 | 78539 |
| 9 | 92399 |
| 10 | 110879 |
| 11 | 117809 |
| 12 | 133979 |
| 13 | 152459 |
| 14 | 168629 |
| 15 | 180179 |
| 16 | 224069 |
| 17 | 226379 |
| 18 | 230999 |
| 19 | 244859 |
| 20 | 251789 |
| 21 | 267959 |
| 22 | 270269 |
| 23 | 284129 |
| 24 | 297989 |
| 25 | 300299 |
| 26 | 309539 |
| 27 | 314159 |
| 28 | 316469 |
| 29 | 330329 |
| 30 | 376529 |
| 31 | 390389 |