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 A190696 #4 Mar 30 2012 18:57:28 %S A190696 1,5,9,13,16,20,24,31,35,39,42,46,50,54,57,61,65,69,72,76,80,87,91,95, %T A190696 98,102,106,110,113,117,121,125,128,132,136,143,147,151,154,158,162, %U A190696 166,169,173,177,181,184,188,192,195,199,203,207,210,214,218,222,225,229,233,240,244,248,251,255,259,263,266,270,274,278,281,285 %N A190696 Positions of 2 in A190693. %C A190696 See A190693. %t A190696 (See A190693.) %Y A190696 Cf. A190693. %K A190696 nonn %O A190696 1,2 %A A190696 _Clark Kimberling_, May 17 2011