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 | 74747 |
| 4 | 185595581 |
| 5 | 16831813861 |
| 6 | 94350482728405349 |
| 7 | 3842148274728412483 |
| 8 | 30308322353935322380303 |