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 A077053 #8 Sep 18 2013 18:38:39 %S A077053 1,1,1,1,2,1,2,2,1,4,1,1,1,1,2,1,1,2,1,4,1,1,3,1,4,1,1,1,1,1,1,8,1,4, %T A077053 5,1,8,4,1,1,1,1,1,8,2,1,1,1,6,1,8,1,5,1,1,1,1,1,1,1,1,1,2,1,2,2,1,2, %U A077053 1,4,2,2,1,1,4,1,1,2,1,1,1,1,2,2,1,6,4 %N A077053 Greatest common divisor of indecomposable Wallis pairs. %C A077053 Terms > 1 show that (x,y) need not be a Wallis pair if (cx,cy) is a Wallis pair. %H A077053 Donovan Johnson, <a href="/A077053/b077053.txt">Table of n, a(n) for n = 1..1000</a> %F A077053 a(n) = gcd(A075768(n), A075769(n)). %Y A077053 Cf. A072182, A072186, A075768, A075769. %K A077053 nonn %O A077053 1,5 %A A077053 _Klaus Brockhaus_, Oct 22 2002 %E A077053 Offset corrected by _Donovan Johnson_, Sep 18 2013