%I A130064
%S A130064 1,2,3,4,5,9,7,8,9,25,11,18,13,49,25,16,17,27,19,50,49,121,23,36,25,169,
%T A130064 27,98,29,75,31,32,121,289,49,54,37,361,169,100,41,147,43,242,75,529,47,
%U A130064 72,49,125,289,338,53,81,121,196,361,841,59,150,61,961,147,64,169,363
%N A130064 (n / SmallestPrimeFactor(n)) * GreatestPrimeFactor(n).
%C A130064 a(n) = n*A006530(n)/A020639(n) = A032742(n)*A006530(n);
%C A130064 a(n)>=n; a(n)=n iff n is a prime power: a(A000961(n))=A000961(n);
%C A130064 a(A001221(n)) <= A001221(n); a(A001222(n)) = A001222(n);
%C A130064 a(n) = A130065(n)+n*A046665(n)*A074320(n)/A066048(n) = A000290(n)/A130065(n).
%H A130064 R. Zumkeller, <a href="b130064.txt">Table of n, a(n) for n = 1..10000</
               a>
%Y A130064 Sequence in context: A075161 A029636 A079871 this_sequence A068795 A072501 
               A092975
%Y A130064 Adjacent sequences: A130061 A130062 A130063 this_sequence A130065 A130066 
               A130067
%K A130064 nonn
%O A130064 1,2
%A A130064 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), May 05 2007