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 A175187 #7 Mar 11 2014 01:32:51 %S A175187 1,3,4,7,6,9,11,15,10,13,15,19,19,23,26,31,18,21,23,27,27,31,34,39,35, %T A175187 39,42,47,48,53,57,63,34,37,39,43,43,47,50,55,51,55,58,63,64,69,73,79, %U A175187 67,71,74,79,80,85,89,95,92,97,101,107,109,115,120,127,66,69,71,75,75 %N A175187 a(n) = A175186(n)+n. %C A175187 For all m >= ceiling(log(n)/log(2)), a(n) = A175186(n +2^m). %Y A175187 Cf. A175186. %K A175187 easy,nonn %O A175187 1,2 %A A175187 _Leroy Quet_, Mar 01 2010 %E A175187 Extended by _Ray Chandler_, Mar 04 2010