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) |
|---|---|
| 3 | 2 |
| 4 | 24 |
| 5 | 153 |
| 6 | 713 |
| 7 | 2557 |
| 8 | 7661 |
| 9 | 20055 |
| 10 | 47153 |
| 11 | 101821 |
| 12 | 205322 |
| 13 | 390580 |
| 14 | 707708 |
| 15 | 1229969 |
| 16 | 2060777 |
| 17 | 3344487 |