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 A056134 #5 Mar 30 2012 18:51:27 %S A056134 2,4,6,2,10,12,14,4,3,20,22,6,26,28,30,4,34,6,38,10,42,44,46,12,5,52, %T A056134 9,14,58,60,62,8,66,68,70,6,74,76,78,20,82,84,86,22,15,92,94,12,7,10, %U A056134 102,26,106,18,110,28,114,116,118,30,122,124,21,8,130,132,134,34,138,140 %N A056134 Smallest positive integer which is the geometric mean of n and an integer other than n. %F A056134 a(n)=sqrt(n*A056135(n)). If n is squarefree then a(n)=2n, otherwise a(n)=A019554(n) %K A056134 easy,nonn %O A056134 1,1 %A A056134 _Henry Bottomley_, Jun 13 2000