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 A175832 #7 Mar 30 2012 19:00:32 %S A175832 1,2,1,0,0,1,0,1,1,0,0,1,0,0,0,0,0,1,0,1,0,0,0,1,0,1,1,0,0,0,0,0,0,0, %T A175832 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0, %U A175832 0,0,0,0,0,1,0,0,0,1,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 %N A175832 Number of solutions of equation 3^q - 2^p = n over integer variables p, q. %C A175832 a(n)=0 iff n is in A173671; a(n)>0 iff n is in A192111. %K A175832 nonn %O A175832 0,2 %A A175832 _Vladimir Reshetnikov_, Sep 15 2010 %E A175832 Edited and extended by _Max Alekseyev_, Jan 28 2012