%I A132740
%S A132740 1,1,3,1,1,3,7,1,9,1,11,3,13,7,3,1,17,9,19,1,21,11,23,3,1,13,27,7,29,3,
%T A132740 31,1,33,17,7,9,37,19,39,1,41,21,43,11,9,23,47,3,49,1,51,13,53,27,11,7,
%U A132740 57,29,59,3,61,31,63,1,13,33,67,17,69,7,71,9,73,37,3,19,77,39,79,1,81
%N A132740 Largest divisor of n coprime to 10.
%C A132740 a(n) = A000265(A132739(n)) = A132739(A000265(n));
%C A132740 a(n) = n / A132741(n);
%C A132740 A051626(a(n)) = A051626(n); A007732(a(n)) = A007732(n);
%C A132740 a(A003592(n)) = 1.
%H A132740 R. Zumkeller, <a href="b132740.txt">Table of n, a(n) for n = 1..10000</
               a>
%e A132740 a(1050) = a(2*3*5*5*7) = 3*7 = 21.
%Y A132740 Sequence in context: A161788 A140211 A097706 this_sequence A106621 A011085 
               A112508
%Y A132740 Adjacent sequences: A132737 A132738 A132739 this_sequence A132741 A132742 
               A132743
%K A132740 nonn
%O A132740 1,3
%A A132740 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Aug 27 2007