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) |
|---|---|
| 0 | 1 |
| 1 | 8 |
| 2 | 288 |
| 3 | 332928 |
| 4 | 443365544448 |
| 5 | 786292024016459316676608 |
| 6 | 2473020588127600939387543243786675530709484249088 |