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) |
|---|---|
| 2 | 1 |
| 3 | 6 |
| 4 | 72 |
| 5 | 277 |
| 6 | 1910 |
| 7 | 8657 |
| 8 | 27442 |
| 9 | 97132 |
| 10 | 295752 |
| 11 | 967914 |
| 12 | 2922814 |