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 | 2 |
| 1 | 3 |
| 2 | 31 |
| 3 | 443 |
| 4 | 23053 |
| 5 | 86677 |
| 6 | 11827763 |
| 7 | 27362989 |
| 8 | 755827199 |
| 9 | 1306369439 |