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 | 1 |
| 2 | 510 |
| 3 | 11235 |
| 4 | 12243 |
| 5 | 14223 |
| 6 | 136374 |
| 7 | 142494 |
| 8 | 145266 |
| 9 | 148614 |
| 10 | 163158 |
| 11 | 171465 |
| 12 | 181815 |
| 13 | 214863 |
| 14 | 240963 |
| 15 | 246507 |
| 16 | 323976 |
| 17 | 397182 |
| 18 | 404994 |
| 19 | 1548798 |