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%I #5 Mar 20 2022 23:01:30
%S 0,2,2,0,4,6,6,4,0,6,10,12,12,10,6,0,8,14,18,20,20,18,14,8,0,10,18,24,
%T 28,30,30,28,24,18,10,0,12,22,30,36,40,42,42,40,36,30,22,12,0,14,26,
%U 36,44,50,54,56,56,54,50,44,36,26,14,0,16,30,42,52,60,66,70,72,72,70,66
%N a(n) = (n - A048760(n)) * (A048761(n) - n).
%C a(n)=0 iff n is a square.
%F a(n) = A053186(n) * (A072689(n) - A053186(n)).
%Y a(n) = A053186(n) * A068527(n).
%K nonn
%O 1,2
%A _Reinhard Zumkeller_, Jul 02 2002
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