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%I #11 Feb 16 2013 16:33:36
%S 5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,71,79,83,97,101,107,
%T 109,113,127,139,149,151,157,163,173,193,199,241,257,307,317,337,353,
%U 389,421,431,433,467,491,499,503,509,541,577,631,641,673,683,881,1201
%N Smallest nonempty set S containing prime divisors of 8k+9 for each k in S.
%H Nathaniel Johnston, <a href="/A020621/b020621.txt">Table of n, a(n) for n = 1..81</a> (full sequence)
%K nonn,fini,full
%O 1,1
%A _David W. Wilson_
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