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 | 59021312 |
| 2 | 821654025830400 |
| 3 | 12197109744970010814464 |
| 4 | 186083410628492378226388631552 |