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 | 1 |
| 2 | 11 |
| 3 | 113 |
| 4 | 7103 |
| 5 | 8778881 |
| 6 | 2302890927539 |
| 7 | 7289913993299309016859 |
| 8 | 330513634706872709970497049176749987771 |
| 9 | 52698433600606388974675914778280598904460888679269021907794061677149 |