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 A118105 #6 Feb 27 2019 09:05:49 %S A118105 1,1,2,3,2,1,3,1,8,3,2,1,4,1,2,1,1,1,2,19,1,3,2,1,1,25,2,1,1,1,10,1,1, %T A118105 1,2,5,1,1,2,3,5,1,2,1,1,5,2,1,3,1,10,1,4,1,6,5,4,1,2,1,20,1,2,3,4,5, %U A118105 2,1,4,1,1,1,2,1,1,1,4,1,1,1,2,1,1,1,4,1,1,1,2,1,1,1,1,1,1,1,3,1,1,1,1,1,1 %N A118105 Greatest common divisor of n and the terms in A118103 whose difference is n. %H A118105 Charlie Neder, <a href="/A118105/b118105.txt">Table of n, a(n) for n = 0..1000</a> %Y A118105 Cf. A118103, A118104. %K A118105 nonn %O A118105 0,3 %A A118105 _Franklin T. Adams-Watters_, Apr 12 2006, May 30 2007