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%I #11 Feb 16 2013 16:57:08
%S 7,11,13,17,19,23,29,31,37,41,43,47,59,61,67,71,73,79,83,89,101,103,
%T 107,113,127,131,137,139,151,167,173,193,199,229,233,239,241,263,293,
%U 313,317,347,349,353,373,389,397,419,433,443,461,463,499,563,593,599
%N Smallest nonempty set S containing prime divisors of 10k+3 for each k in S.
%H Nathaniel Johnston, <a href="/A020633/b020633.txt">Table of n, a(n) for n = 1..106</a> (full sequence)
%K nonn,fini,full
%O 1,1
%A _David W. Wilson_