A080295 A014486-index of the branch-reduced binomial-mod-2 binary trees.
1, 6, 477, 70818, 2208159610, 445557105328, 19185898282602827, 905428099582719818595
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.