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 A016072 #4 Mar 30 2012 17:30:18 %S A016072 1,4,6,13,501,2075 %N A016072 Obsolete sequence of lower bounds for A028444. %D A016072 Dewdney, "The Armchair Universe," p. 164. %K A016072 nonn %O A016072 0,2 %A A016072 _Robert G. Wilson v_