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 A003589 #3 May 16 2003 03:00:00 %S A003589 2,2,3,2,2,3,2,2,3,2,2,2,3,2,2,3,2,2,3,2,2,2,3,2,2,3,2,2,3,2,2,2,3,2, %T A003589 2,3,2,2,3,2,2,3,2,2,2,3,2,2,3,2,2,3,2,2,2,3,2,2,3,2 %N A003589 a(n) has the property that the sequence b(n) = number of 2's between successive 3's is the same as the original sequence. %K A003589 nonn %O A003589 0,1 %A A003589 Hareendra Yalamanchili (hyalaman(AT)MIT.EDU)