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 | 11 |
| 2 | 19 |
| 3 | 79 |
| 4 | 631 |
| 5 | 1787 |
| 6 | 2011 |
| 7 | 2381 |
| 8 | 20219 |
| 9 | 49523 |