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 | 75 |
| 2 | 2499 |
| 3 | 83079 |
| 4 | 2761659 |
| 5 | 91800447 |
| 6 | 3051539907 |
| 7 | 101436268887 |