%I A135720
%S A135720 561,1729,75361,29341,162401,334153,1615681,3581761,399001,252601,
%T A135720 1152271
%N A135720 a(n) = smallest Carmichael numbers A002997 with (n+1)-st prime as smallest 
               divisor.
%e A135720 a(1) = 561 because smallest prime divisor 3 is second prime.
%Y A135720 Cf. A002997, A135717, A006931, A135719.
%Y A135720 Sequence in context: A048123 A131672 A083732 this_sequence A097130 A110889 
               A063400
%Y A135720 Adjacent sequences: A135717 A135718 A135719 this_sequence A135721 A135722 
               A135723
%K A135720 nonn
%O A135720 1,1
%A A135720 Artur Jasinski (grafix(AT)csl.pl), Nov 25 2007