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) |
|---|---|
| 3 | 1526339511795367850762323 |
| 4 | 187024220802620550798074497168768775337833066860651232788557036897081398718783708709 |