A052397 Duplicate of A047889.
1, 2, 6, 24, 119, 694, 4582, 33324, 261808, 2190688, 19318688, 178108704
Offset: 0
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.