%I A009195
%S A009195 1,1,1,2,1,2,1,4,3,2,1,4,1,2,1,8,1,6,1,4,3,2,1,8,5,2,9,4,1,2,1,16,1,2,
               1,
%T A009195 12,1,2,3,8,1,6,1,4,3,2,1,16,7,10,1,4,1,18,5,8,3,2,1,4,1,2,9,32,1,2,1,
               4,
%U A009195 1,2,1,24,1,2,5,4,1,6,1,16,27,2,1,12,1,2,1,8,1,6,1,4,3,2,1,32,1,14,3,20
%N A009195 GCD(n, phi(n)).
%H A009195 T. D. Noe, <a href="b009195.txt">Table of n, a(n) for n=1..10000</a>
%Y A009195 Cf. A000010, A003277, A050399. Also GCD[n, A051593[n]] (Labos E.).
%Y A009195 Sequence in context: A135545 A123317 A164879 this_sequence A072994 A052126 
               A094521
%Y A009195 Adjacent sequences: A009192 A009193 A009194 this_sequence A009196 A009197 
               A009198
%K A009195 nonn,easy,nice
%O A009195 1,4
%A A009195 David W. Wilson (davidwwilson(AT)comcast.net)