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 A249038 #6 Oct 26 2014 18:06:29 %S A249038 1,1,1,2,2,2,3,4,4,5,5,5,6,7,7,7,8,9,9,10,10,11,11,11,12,13,13,13,14, %T A249038 15,15,15,16,17,17,17,18,19,19,20,20,21,21,22,22,23,23,23,24,25,25,25, %U A249038 26,27,27,27,28,29,29,29,30,31,31,31,32,33,33,33,34,35,35,35,36,37,37,37,38,39 %N A249038 Number of odd terms in first n terms of A249036. %p A249038 See A249036. %Y A249038 Cf. A249036, A249037. %K A249038 nonn %O A249038 1,4 %A A249038 _N. J. A. Sloane_, Oct 26 2014