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 A191262 #5 Mar 30 2012 18:57:31 %S A191262 1,3,4,6,8,10,12,14,15,17,19,20,22,24,25,27,29,30,32,34,36,38,40,41, %T A191262 43,45,47,49,51,52,54,56,58,60,62,63,65,67,69,71,73,74,76,78,79,81,83, %U A191262 84,86,88,89,91,93,95,97,99,100,102,104,105,107,109,110,112,114,115,117,119,121,123,125,126,128,130,131,133,135,136,138,140,141 %N A191262 Positions of 0 in A191261. %C A191262 See A191261 and A191250. %t A191262 (See A191261.) %Y A191262 Cf. A191261, A191250. %K A191262 nonn,easy %O A191262 1,2 %A A191262 _Clark Kimberling_, May 28 2011