A085615 Duplicate of A054726.
1, 1, 2, 8, 48, 352, 2880, 25216, 231168, 2190848, 21292032, 211044352
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.