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]; my $lo = 2; my $hi = 2*$lo; while (1) { my @terms = grep { !is_prime($'s wiki page.
[0]; my $lo = 2; my $hi = 2*$lo; while (1) { my @terms = grep { !is_prime($ has authored 0 sequences.