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.
{0,0}, where M = [0,1; 1,6]. - _L. Edson Jeffery's wiki page.
{0,0}, where M = [0,1; 1,6]. - _L. Edson Jeffery has authored 0 sequences.