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%I #11 Jan 15 2017 12:07:29
%S 2,2,3,2,5,3,7,2,10,3,11,12,13,14,2,2,17,4,19,21,22,3,23,24,25,2,3,28,
%T 29,30,31,32,2,17,35,36,37,38,39,2,2,4,41,45,43,46,47,48,49,50,2,2,53,
%U 3,55,56,2,29,59,60,61,62,63,64,5,66,67,2,3,70,71,72
%N a(n) = gcd(A281120(n), A281120(2n)).
%C All terms are strictly greater than 1.
%H Rémy Sigrist, <a href="/A281121/b281121.txt">Table of n, a(n) for n = 1..10000</a>
%Y Cf. A281120.
%K nonn
%O 1,1
%A _Rémy Sigrist_, Jan 15 2017