Search: id:A051144
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%I A051144
%S A051144 8,12,18,20,24,27,28,32,40,44,45,48,50,52,54,56,60,63,68,72,75,76,80,
%T A051144 84,88,90,92,96,98,99,104,108,112,116,117,120,124,125,126,128,132,135,
%U A051144 136,140,147,148,150,152,153,156,160,162,164,168,171,172,175,176,180
%N A051144 Non-square-free non-squares: each entry has a square factor but is not 
               a perfect square itself.
%C A051144 Or, the numbers with a prime number of proper divisors and a nonprime 
               number of perfect partitions. [From Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), 
               Sep 26 2009]
%e A051144 65 is not included because it is square-free. 64 is not included because 
               it is a perfect square. 63 is included because 63 = 3^2 * 7
%Y A051144 Cf. A002033, A063806. [From Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), 
               Sep 26 2009]
%Y A051144 Sequence in context: A091523 A104201 A036327 this_sequence A067537 A046339 
               A145784
%Y A051144 Adjacent sequences: A051141 A051142 A051143 this_sequence A051145 A051146 
               A051147
%K A051144 easy,nonn
%O A051144 0,1
%A A051144 Michael Minic (Rassilon6(AT)aol.com)

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