A123458 Duplicate of A048194.
1, 2, 4, 9, 21, 56, 164, 557, 2223, 10766
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.