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 | 5 |
| 2 | 1610 |
| 3 | 5833 |
| 4 | 82699856 |
| 5 | 9633661255 |
| 6 | 17292288245 |
| 7 | 78246420246 |