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 A175681 #4 Jan 04 2013 16:09:22 %S A175681 2,2,4,3,2,3,6,4,3,2,3,4,3,4,8,5,4,3,3,3,2,3,4,5,3,3,3,5,4,5,10,6,5,4, %T A175681 4,3,3,3,4,4,3,2,3,3,3,4,5,6,4,3,4,3,3,3,4,6,4,4,4,6,5,6,12,7,6,5,5,4, %U A175681 4,4,4,4,3,3,3,3,3,4,5,5,4,3,3,3,2,3,4,4,3,3,3,4,4,5,6,7,5,4,5,3,3,3,5,3,3 %N A175681 The sum of maximal run and minimal run lengths in binary representation of n. %F A175681 a(n)=A043276(n)+A175597(n). %Y A175681 Cf. A175599, A175665. %K A175681 nonn,base %O A175681 1,1 %A A175681 _Juri-Stepan Gerasimov_, Aug 08 2010