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 | 139 |
| 2 | 173 |
| 3 | 547 |
| 4 | 829 |
| 5 | 2087 |
| 6 | 2719 |
| 7 | 3109 |
| 8 | 10159 |
| 9 | 56543 |
| 10 | 80599 |