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 | 12289 |
| 2 | 472391 |
| 3 | 78124999 |
| 4 | 135967277 |
| 5 | 24262286441 |
| 6 | 38050596989 |
| 7 | 5498076927457 |
| 8 | 8388044818849 |
| 9 | 30794280412669 |
| 10 | 45941644105613 |
| 11 | 1205285836084793 |
| 12 | 7909086479714171 |
| 13 | 1438991183761177 |
| 14 | 47101607991825047 |
| 15 | 18067554193458689 |