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%I #9 Mar 22 2020 10:14:25
%S 1,1,1,1,1,6,1,1,1,2,1,2,1,2,15,1,1,6,1,10,3,2,1,6,1,2,1,28,1,2,1,1,3,
%T 2,7,2,1,2,1,10,1,42,1,4,45,2,1,6,1,2,3,4,1,6,1,4,3,2,1,12,1,2,3,1,5,
%U 66,1,2,3,10,1,18,1,2,15,4,77,6,1,10,1,2
%N a(n) = gcd(2*n, binomial(2*n,n))/2.
%H Hugo Pfoertner, <a href="/A333461/b333461.txt">Table of n, a(n) for n = 1..10000</a>
%F a(n) = A058005(n)/2.
%o (PARI) for(n=1,82,print1(gcd(2*n,binomial(2*n,n))/2,", "))
%Y Cf. A058005, A071416.
%K nonn
%O 1,6
%A _Hugo Pfoertner_, Mar 22 2020
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