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) |
|---|---|
| 1 | 2 |
| 2 | 11 |
| 3 | 1361 |
| 4 | 2521008887 |
| 5 | 16022236204009818131831320183 |
| 6 | 4113101149215104800030529537915953170486139623539759933135949994882770404074832568499 |