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 | 180179 |
| 2 | 270269 |
| 3 | 300299 |
| 4 | 330329 |
| 5 | 390389 |
| 6 | 420419 |
| 7 | 540539 |
| 8 | 660659 |
| 9 | 840839 |
| 10 | 1231229 |
| 11 | 1261259 |
| 12 | 1501499 |
| 13 | 1621619 |
| 14 | 1861859 |
| 15 | 1921919 |
| 16 | 1951949 |
| 17 | 2012009 |
| 18 | 2372369 |
| 19 | 2762759 |
| 20 | 2972969 |
| 21 | 3663659 |
| 22 | 3693689 |
| 23 | 3723719 |
| 24 | 3903899 |
| 25 | 4084079 |