%I #4 Apr 09 2023 22:22:51
%S 1,3,5,4,8,1,11,6,9,4,17,6,20,7,10,11,25,8,27,10,15,12,33,9,27,14,24,
%T 14,41,12,44,21,25,20,30,14,51,23,29,20,56,15,59,25,30,27,64,20,56,26,
%U 39,30,73,24,50,31,45,35,80,18,83,37,45,41,59,26,90,39,54,30
%N Moebius transform of nonprimes.
%H N. J. A. Sloane, <a href="/transforms.txt">Transforms</a>
%F a(n) = Sum_{d|n} mu(n/d) * A018252(d).
%Y Cf. A007444, A018252, A361708.
%K nonn
%O 1,2
%A _Ilya Gutkovskiy_, Mar 21 2023
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