%I A100959
%S A100959 1,2,3,5,7,8,11,12,13,16,17,18,19,20,23,24,27,28,29,30,31,32,36,37,40,
%T A100959 41,42,43,44,45,47,48,50,52,53,54,56,59,60,61,63,64,66,67,68,70,71,72,
%U A100959 73,75,76,78,79,80,81,83,84,88,89,90,92,96,97,98,99,100,101,102,103,104
%N A100959 Non-semiprimes.
%C A100959 A001222(a(n)) <> 2; a(n) <> A020639(a(n)) * A006530(a(n)); complement 
               of A001358; A064911(a(n)) = 0.
%H A100959 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               Semiprime.html">Semiprime</a>
%Y A100959 Sequence in context: A028743 A106735 A082634 this_sequence A166982 A026422 
               A026424
%Y A100959 Adjacent sequences: A100956 A100957 A100958 this_sequence A100960 A100961 
               A100962
%K A100959 nonn
%O A100959 1,2
%A A100959 Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Nov 24 2004