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.
,3)*(-1)**$n } 1..$n; } say join(", ",@L); # _Dana Jacobsen's wiki page.
,3)*(-1)**$n } 1..$n; } say join(", ",@L); # _Dana Jacobsen has authored 0 sequences.