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 A191775 #4 Mar 30 2012 18:57:33 %S A191775 1,3,4,6,7,8,11,12,13,14,16,18,19,20,21,23,26,27,29,30,31,32,33,35,38, %T A191775 39,40,42,43,44,45,46,48,50,51,55,56,57,58,59,61,62,63,64,65,66,68,69, %U A191775 71,72,77,78,79,80,81,82,84,86,87,88,89,91,93,94,96,97 %N A191775 Positions of 1 in A191774; complement of A191775. %C A191775 See A191774. %t A191775 (See A191774.) %Y A191775 Cf. A191774. %K A191775 nonn %O A191775 1,2 %A A191775 _Clark Kimberling_, Jun 16 2011