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%I #3 Mar 30 2012 18:56:03
%S 1,5,13,47,271,301,2287,2455,5225,5505,5757,5997,68487,70797,365073,
%T 4884549,15054047,15440147,15800507,32276689,32931889,570652913,
%U 581154833,591365033,11419719227,11598790427,11773384847,11939665247,12098387447,12253582487
%N a(n) = (1/4 + 1/6 + ... + 1/c(n))*LCM{4, 6, ..., c(n)}, where c(n) = n-th composite number.
%K nonn
%O 1,2
%A _Clark Kimberling_
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