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 | 8 |
| 4 | 24 |
| 5 | 62 |
| 6 | 291 |
| 7 | 539 |
| 8 | 2625 |
| 9 | 6177 |
| 10 | 21923 |
| 11 | 37721 |
| 12 | 238267 |
| 13 | 299203 |
| 14 | 1338140 |
| 15 | 3492733 |