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 | 8 |
| 2 | 222 |
| 3 | 2337 |
| 4 | 31941 |
| 5 | 33371313 |
| 6 | 311123771 |
| 7 | 7149317941 |
| 8 | 22931219729 |
| 9 | 112084656339 |
| 10 | 3347911118189 |
| 11 | 11613496501723 |
| 12 | 97130517917327 |
| 13 | 531832651281459 |
| 14 | 3331113965338635107 |
| 15 | 3331113965338635107 |