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%I #21 Feb 13 2021 01:11:49
%S 4,9,16,18,25,36,48,49,50,64,75,81,98,100,121,144,147,162,169,180,192,
%T 196,225,242,245,256,289,294,300,320,324,338,361,363,400,405,441,448,
%U 450,484,507,529,567,576,578,588,605,625,648,676,700,720,722,726,729
%N Numbers that can be represented as k^2*j with 0 < j <= k and gcd(k, j) = 1.
%C Essentially the same as A102646. - _Georg Fischer_, Oct 07 2018
%t Take[ Union[ Flatten[ Table[ If[ GCD[k, j] == 1, k^2*j, {}], {k, 27}, {j, k - 1}]]], 55]
%Y Cf. A102448, A104020, A104023, A104026.
%K nonn
%O 1,1
%A _Leroy Quet_ and _Robert G. Wilson v_, Feb 24 2005
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