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 | 111119 |
| 2 | 123457 |
| 3 | 178889 |
| 4 | 199999 |
| 5 | 224467 |
| 6 | 246913 |
| 7 | 325477 |
| 8 | 333337 |
| 9 | 333367 |
| 10 | 333667 |
| 11 | 336667 |
| 12 | 345679 |
| 13 | 359147 |
| 14 | 361909 |
| 15 | 387403 |
| 16 | 394549 |
| 17 | 411113 |
| 18 | 419753 |
| 19 | 443221 |
| 20 | 444449 |
| 21 | 449161 |
| 22 | 470551 |
| 23 | 473219 |
| 24 | 476647 |
| 25 | 476659 |
| 26 | 504323 |
| 27 | 506173 |
| 28 | 509053 |
| 29 | 512683 |
| 30 | 513269 |
| 31 | 514289 |
| 32 | 514357 |