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 A105553 #7 Sep 08 2013 19:54:50 %S A105553 0,0,1,0,1,1,1,0,1,1,2,0,1,1,1,0,1,1,2,1,1,1,1,0,1,1,2,0,1,1,1,0,1,1, %T A105553 2,1,2,1,1,0,1,1,2,0,1,1,1,0,1,1,2,1,1,1,1,0,1,1,2,0,1,1,1,0,1,1,2,1, %U A105553 2,2,1,0,1,1,2,0,1,1,1,0,1,1,2,1,1,1,1,0,1,1,2,0,1,1,1,0,1,1,2 %N A105553 a(n) is the number of 1's in A103528(n) written in base 2. %H A105553 David Applegate, Benoit Cloitre, Philippe Deléham and N. J. A. Sloane, Sloping binary numbers: a new sequence related to the binary numbers [<a href="http://neilsloane.com/doc/slopey.pdf">pdf</a>, <a href="http://neilsloane.com/doc/slopey.ps">ps</a>]. %F A105553 a(n) = A103318(n) - 1. %Y A105553 For records see A034797. Cf. A103318, A103528. %K A105553 nonn %O A105553 1,11 %A A105553 _Philippe Deléham_, May 03 2005