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 A166275 #2 Mar 31 2012 13:21:20 %S A166275 5,11,12,13,19,21,23,24,25,26,27,28,29,39,40,41,43,44,45,47,48,49,50, %T A166275 51,52,53,54,55,56,57,58,59,60,61,71,73,75,77,79,80,81,82,83,84,85,87, %U A166275 88,89,90,91,92,93,95,96,97,98,99,100,101,102,103,104,105,106,107,108 %N A166275 Positions of zeros in A126441. %C A166275 Here we assume that the starting offset of A126441 is 0, i.e. A126441(0)=1, A126441(1)=2, etc. %Y A166275 Complement: A166274. %K A166275 nonn %O A166275 1,1 %A A166275 _Antti Karttunen_, Oct 12 2009