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 A191104 #4 Mar 30 2012 18:57:29 %S A191104 2,5,9,12,13,16,19,20,23,27,30,34,37,41,44,48,51,52,55,58,59,62,66,69, %T A191104 73,76,80,83,84,87,90,91,94,98,101,105,108,112,115,119,122,123,126, %U A191104 129,130,133,137,140,144,147,151,154,155,158,161,162,165,169,172,176,179,183,186,190,193,194,197,200,201,204,208,211,215,218 %N A191104 Positions of 1 in A190893. %C A191104 See A190893. %t A191104 (See A190893.) %Y A191104 Cf. A190893. %K A191104 nonn %O A191104 1,1 %A A191104 _Clark Kimberling_, May 26 2011