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 | 86 |
| 2 | 1357 |
| 3 | 24146 |
| 4 | 1028736826 |
| 5 | 33667786628 |
| 6 | 2132089369082 |