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 | 4 |
| 2 | 14 |
| 3 | 50 |
| 4 | 238 |
| 5 | 1123 |
| 6 | 5792 |
| 7 | 30598 |
| 8 | 166056 |
| 9 | 927639 |
| 10 | 5308458 |
| 11 | 30984757 |