Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #6 Mar 30 2012 18:35:14
%S 2,7,11,13,19,31
%N Smallest nonempty set S containing prime divisors of 3k+5 for each k in S.
%K nonn,fini,full
%O 1,1
%A _David W. Wilson_