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) |
|---|---|
| 0 | 2 |
| 1 | 2 |
| 2 | 2 |
| 3 | 21 |
| 4 | 209 |
| 5 | 72 |
| 6 | 260 |
| 7 | 17 |
| 8 | 3311 |
| 9 | 4469 |
| 10 | 94259 |
| 11 | 55599 |