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.
%I A030589 #4 Mar 30 2012 18:56:19 %S A030589 35,38,41,89,92,95,143,146,149,197,200,203,251,254,257,305,306,309, %T A030589 310,313,314,317,321,325,329,333,337,341,345,349,353,357,361,365,369, %U A030589 373,378,382,386,450,454,458,522,526,530,594,598 %N A030589 Position of n-th 0 in A030588. %K A030589 nonn %O A030589 1,1 %A A030589 _Clark Kimberling_