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 | 6 |
| 2 | 77 |
| 3 | 6557 |
| 4 | 43112347 |
| 5 | 1858675670994257 |
| 6 | 3454675249946148511864052376019 |
| 7 | 11934781082590483693525046199489720199194471433440678070422853 |