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 A090483 #4 Dec 05 2013 19:56:37 %S A090483 1,2,4,6,9,15,19 %N A090483 Indices of zero in A090482. %C A090483 I conjecture there are no more terms; I've checked up to 200. - _David Wasserman_, Nov 17 2005 %Y A090483 Cf. A090481, A090482. %K A090483 nonn %O A090483 1,2 %A A090483 _Amarnath Murthy_, Dec 02 2003 %E A090483 Two more terms from _David Wasserman_, Nov 17 2005