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 | 8 |
| 1 | 398297088 |
| 2 | 913318229998415698350080000 |
| 3 | 18602466189203099377637961636627003234293304602017169408 |