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) |
|---|---|
| 5 | 6 |
| 6 | 24 |
| 7 | 67 |
| 8 | 263 |
| 9 | 823 |
| 10 | 3276 |
| 11 | 10839 |
| 12 | 43287 |
| 13 | 147943 |