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.
(0,1); n = 1,2,3,.... - _Philippe Deléham's wiki page.
(0,1); n = 1,2,3,.... - _Philippe Deléham has authored 0 sequences.