%I #12 Feb 07 2020 09:04:01
%S 1,1,1,1,1,2,1,1,2,3,1,2,2,4,1,1,3,2,4,4,5,3,2,2,6,4,8,3,5,1,9,6,4,4,
%T 12,5,1,1,9,6,10,2,18,12,8,8,9,15,3,1,2,2,18,12,20,4,36,15,3,16,5,27,
%U 18,30,6,2,4,4,36,24,25,5,8,27,45,9,3,6,32,10,54,36,60,12,4,8,8,45,9,48,15,5
%N Greatest common divisors of consecutive 5-smooth numbers.
%H Amiram Eldar, <a href="/A112757/b112757.txt">Table of n, a(n) for n = 1..10000</a> (terms 1..750 from Harvey P. Dale)
%F a(n) = gcd(A051037(n), A051037(n+1)).
%t GCD@@#&/@(Partition[Select[Range[2000],Max[Transpose[ FactorInteger[ #]] [[1]]]<6&],2,1]) (* _Harvey P. Dale_, Dec 24 2015 *)
%Y Cf. A051037, A112752.
%K nonn
%O 1,6
%A _Reinhard Zumkeller_, Sep 18 2005