%I A020574
%S A020574 3,7,11,13,17,23
%N A020574 Smallest nonempty set S containing prime divisors of k+10 for each k 
               in S.
%Y A020574 Sequence in context: A038920 A091633 A089690 this_sequence A020618 A055211 
               A045417
%Y A020574 Adjacent sequences: A020571 A020572 A020573 this_sequence A020575 A020576 
               A020577
%K A020574 nonn,fini,full
%O A020574 1,1
%A A020574 David W. Wilson (davidwwilson(AT)comcast.net)