A161422 a(n) = A161418(n)/6.
0, 0, 0, 0, 1, 1, 2, 2, 4, 5
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.