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 | 3 |
| 1 | 5 |
| 2 | 11 |
| 3 | 97 |
| 4 | 1847 |
| 5 | 5623 |
| 6 | 89753 |
| 7 | 3851587 |
| 8 | 1872852203 |
| 9 | 1999066711903 |
| 10 | 22790428875365903 |
| 11 | 5333419265419188034369535864127397 |
| 12 | 55128448018333565337014555712123010955456071077000028555991473847 |