Search: id:A067028
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%I A067028
%S A067028 16,24,36,40,54,56,60,64,81,84,88,90,96,100,104,126,132,135,136,140,
%T A067028 144,150,152,156,160,184,189,196,198,204,210,216,220,224,225,228,232,
%U A067028 234,240,248,250,256,260,276,294,296,297,306,308,315,324,328,330,336
%N A067028 Numbers with a composite number of prime factors (counted with multiplicity).
%e A067028 a(1)=16, 16 has 4 prime factors (counted with multiplicity) and 4 is 
               composite.
%Y A067028 Cf. A063989.
%Y A067028 Sequence in context: A163284 A100316 A036328 this_sequence A110893 A014613 
               A046370
%Y A067028 Adjacent sequences: A067025 A067026 A067027 this_sequence A067029 A067030 
               A067031
%K A067028 nonn
%O A067028 1,1
%A A067028 Shyam Sunder Gupta (guptass(AT)rediffmail.com), Feb 16 2002

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