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) |
|---|---|
| 4 | 8 |
| 5 | 104 |
| 6 | 36706 |
| 7 | 57182858 |
| 8 | 1769141740 |