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 | 113171 |
| 2 | 113173 |
| 3 | 113797 |
| 4 | 123719 |
| 5 | 153137 |
| 6 | 179719 |
| 7 | 199739 |
| 8 | 213173 |
| 9 | 229373 |
| 10 | 231197 |
| 11 | 233113 |
| 12 | 233713 |
| 13 | 236779 |
| 14 | 237331 |
| 15 | 237619 |
| 16 | 237971 |
| 17 | 241973 |
| 18 | 259397 |
| 19 | 317971 |
| 20 | 327193 |
| 21 | 343373 |
| 22 | 353173 |
| 23 | 361373 |
| 24 | 372719 |
| 25 | 373379 |
| 26 | 382373 |
| 27 | 432713 |
| 28 | 519733 |
| 29 | 521137 |
| 30 | 521317 |