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 A191251 #4 Mar 30 2012 18:57:31 %S A191251 1,3,5,7,8,10,12,14,16,18,20,22,24,26,27,29,31,33,35,37,39,40,42,44, %T A191251 46,48,49,51,53,55,57,59,61,63,65,67,68,70,72,74,76,77,79,81,83,85,87, %U A191251 89,91,93,95,96,98,100,102,104,106,108,110,112,114,115,117,119,121,123,125,127,128,130,132,134,136,137,139,141,143,145,147,149 %N A191251 Positions of 0 in A191250. %C A191251 See A191250. %t A191251 (See A191250.) %Y A191251 Cf. A191250. %K A191251 nonn %O A191251 1,2 %A A191251 _Clark Kimberling_, May 28 2011