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 | 52711 |
| 2 | 648391 |
| 3 | 9737333 |
| 4 | 37139213 |
| 5 | 174440041 |
| 6 | 326851121 |
| 7 | 718064159 |
| 8 | 997525853 |
| 9 | 1559861749 |
| 10 | 2724711961 |
| 11 | 3657500101 |
| 12 | 5545806481 |
| 13 | 7069067389 |
| 14 | 8012791231 |
| 15 | 9672485827 |
| 16 | 12501968177 |
| 17 | 16123689073 |
| 18 | 16917026909 |
| 19 | 22742734291 |