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 | 10 |
| 2 | 444793 |
| 3 | 8635565795744155161506 |
| 4 | 1122606574548038398976040173670530159089991444775125551802871247408332723840 |