Search: id:A162144
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%I A162144
%S A162144 27000,74088,287496,343000,474552,1061208,1157625,1331000,1481544,2197000,
%T A162144 2628072,3652264,4492125,4913000,5268024,6028568,6434856,6859000,7414875,
%U A162144 10941048,12167000,12326391,13481272,14886936,16581375,17173512,18821096
%N A162144 Products of cubes of 3 distinct primes.
%C A162144 Numbers of the form p^3*q^3*r^3 where p, q, r are three distinct primes.
%C A162144 The cubic analog of A085986 (squares of 2 distinct primes).
%F A162144 a(n) = (A007304(n))^3.
%F A162144 A000005(a(n)) = 64.
%e A162144 27000=2^3*3^3*5^3. 74088=2^3*3^3*7^3. 287496=2^3*3^3*11^3.
%t A162144 fQ[n_]:=Last/@FactorInteger[n]=={3,3,3}; lst={};Do[If[fQ[n],AppendTo[lst, 
               n]],{n,2*10!}];lst
%Y A162144 Cf. A006881, A162142, A162143.
%Y A162144 Sequence in context: A093181 A051025 A048921 this_sequence A159995 A037045 
               A127411
%Y A162144 Adjacent sequences: A162141 A162142 A162143 this_sequence A162145 A162146 
               A162147
%K A162144 nonn
%O A162144 1,1
%A A162144 Vladimir Orlovsky (4vladimir(AT)gmail.com), Jun 25 2009
%E A162144 Edited by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 14 2009

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