A080657 Duplicate of A075152.
1, 3674160, 43252003274489856000, 7401196841564901869874093974498574336000000000
Offset: 1
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.