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 | 804 |
| 2 | 646416 |
| 3 | 376812420 |
| 4 | 205495778969 |
| 5 | 100687082932722 |
| 6 | 46100277695598540 |
| 7 | 19842370956769791406 |
| 8 | 8124028780235672182317 |
| 9 | 3184909570287436388080416 |