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.
-$l; if ($gap>$max) { say "$i $gap" if ++$i > 0; $max=$gap; } $l=$'s wiki page.
-$l; if ($gap>$max) { say "$i $gap" if ++$i > 0; $max=$gap; } $l=$ has authored 0 sequences.