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 | 2 |
| 3 | 7 |
| 4 | 11 |
| 5 | 191 |
| 6 | 248 |
| 7 | 1067 |
| 8 | 2666 |
| 9 | 5252 |
| 10 | 13400 |
| 11 | 22886 |
| 12 | 23739 |
| 13 | 29095 |