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Numbers that factorize into a prime number of factors all raised to different prime exponents and no number appears both as an exponent and as a prime factor.
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%I #4 Mar 31 2012 10:32:25

%S 6125,8575,10976,11907,15125,16000,21125,29403,31104,33275,36125,

%T 41067,41503,42592,45125,54675,54925,57967,65219,66125,69984,70227,

%U 70304,87723,99127,105125,107653,120125,122825,123823,128547,134456,151263

%N Numbers that factorize into a prime number of factors all raised to different prime exponents and no number appears both as an exponent and as a prime factor.

%K nonn

%O 1,1

%A _Jon Wild_, Feb 14 2006