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 A190689 #4 Mar 30 2012 18:57:28 %S A190689 7,11,18,22,26,33,37,41,48,52,63,67,74,78,82,89,93,97,104,108,119,123, %T A190689 130,134,138,145,149,153,160,164,175,179,186,190,194,201,205,216,220, %U A190689 227,231,235,242,246,250,257,261,272,276,283,287,291,298,302,306,313,317,328,332,339,343,347,354,358,362,369,373,384,388,395 %N A190689 Positions of 0 in A190688. %C A190689 See A190688. %t A190689 (See A190688.) %Y A190689 Cf. A190688. %K A190689 nonn %O A190689 1,1 %A A190689 _Clark Kimberling_, May 17 2011