A047756 Duplicate of A047767.
0, 0, 1, 2, 2, 7, 12, 29, 55, 143, 271, 728, 1428, 3873, 7752, 21318, 43256, 120175
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.