A094579 Duplicate of A029729.
1, 3, 31, 1145, 154881, 77899563, 147226330175, 1053765855157617
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.