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%I #6 Mar 12 2019 22:23:49
%S 0,1,1,1,1,1,1,1,0,1,1,1,1,1,1,1,1,1,1,1,0,1,1,1,0,1,1,1,1,1,1,1,1,1,
%T 0,1,1,1,0,1,1,1,1,1,1,1,1,1,0,1,1,1,1,1,0,1,0,1,1,1,1,1,1,1,1,1,1,1,
%U 1,1,1,1,1,1,1,1,0,1,1,1,0,1,1,1,0,1,0,1,1,1,0,1,1,1,0,1,1,1,0,1,1,1,1,1,0,1,1,1,1,1,0,1,1,1,0,1,1,1,1,1
%N Characteristic function of A324721: a(n) = 1 if 2*A156552(n) > A323243(n), and 0 otherwise.
%H Antti Karttunen, <a href="/A324732/b324732.txt">Table of n, a(n) for n = 1..10000</a> (based on Hans Havermann's factorization of A156552)
%H <a href="/index/Bi#binary">Index entries for sequences related to binary expansion of n</a>
%H <a href="/index/Ch#char_fns">Index entries for characteristic functions</a>
%H <a href="/index/Pri#prime_indices">Index entries for sequences computed from indices in prime factorization</a>
%F a(n) = 1 if A323244(n) is positive, and 0 otherwise.
%F For n > 1, a(n) = A294934(A156552(n)).
%o (PARI) A324732(n) = ((2*A156552(n))>A323243(n));
%Y Cf. A156552, A294934, A323243, A323244, A324721, A324731.
%K nonn
%O 1
%A _Antti Karttunen_, Mar 12 2019
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