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 | 11 |
| 2 | 37 |
| 3 | 823553 |
| 4 | 387420499 |
| 5 | 112595147462071192539789448988889059930192105219196517009951969 |