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 | 3 |
| 2 | 5 |
| 3 | 12 |
| 4 | 34 |
| 5 | 104 |
| 6 | 292 |
| 7 | 916 |
| 8 | 2791 |
| 9 | 8660 |
| 10 | 26538 |
| 11 | 81584 |
| 12 | 248554 |