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%I #6 Mar 16 2017 20:57:32
%S 1,2,5,8,17,40,79,128,323,544,1025,2560,4097,10112,22643,32768,66047,
%T 165376,262145,557056,1513709,2099200,4198399,10485760,17825807,
%U 33562624,84672701,165675008,268435457,741965824,1259979967,2147483648,5378137091,8656912384
%N Number of n X n circulant singular matrices over GF(2).
%H Alois P. Heinz, <a href="/A086324/b086324.txt">Table of n, a(n) for n = 1..1000</a>
%F a(n) = 2^n - A003473(n).
%Y Cf. A003473, A002416.
%K nonn
%O 1,2
%A Yuval Dekel (dekelyuval(AT)hotmail.com), Aug 30 2003
%E a(10)-a(34) from _Alois P. Heinz_, Mar 16 2017