%I #6 Mar 14 2017 00:27:34
%S 4,4,9,4,4,9,4,4,25,9,4,4,4,4,9,4,49,25,4,9,4,4,9,4,4,25,4,4,9,4,4,9,
%T 4,4,49,9,4,4,4,9,4,121,4,25,9,4,4,9,4,4,49,4,25,4,9,4,4,9,4,4,169,9,
%U 4,25,4,4,4,9,4,9,4,9,4,4,4,4,4,4,9,4,4
%N The single square referenced in A190641 (Numbers having exactly one non-unitary prime factor).
%H Robert Price, <a href="/A283670/b283670.txt">Table of n, a(n) for n = 1..10000</a>
%e A190641(4)=12, 12 = 2*2*3, so 12 has only one square factor, namely 4.
%Y Cf. A190641 A283671.
%K nonn
%O 1,1
%A _Robert Price_, Mar 13 2017
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