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%I #8 Oct 25 2016 21:14:31
%S 0,0,0,36,7860,4177152,8589313152,70368605798400,2305842990423490560,
%T 302231454885790246502400,158456325028519245775644917760,
%U 332306998946228931044233275859009536,2787593149816327892614636032925171439370240
%N Number of asymmetric n X n binary matrices under action of dihedral group of the square D_4.
%H Colin Barker, <a href="/A054407/b054407.txt">Table of n, a(n) for n = 0..50</a>
%F (1/8)*(2^(n^2)-2*2^((n^2+n)/2)-3*2^(n^2/2)+2*2^(n^2/4)+2*2^((n^2+2*n)/4)) if n is even and (1/8)*(2^(n^2)-4*2^((n^2+n)/2)-2^((n^2+1)/2)+4*2^((n^2+2*n+1)/4)) if n is odd. - Corrected by _Colin Barker_, Oct 25 2016
%Y Cf. A054247.
%K easy,nonn
%O 0,4
%A _Vladeta Jovovic_, May 08 2000
%E More terms from _Colin Barker_, Oct 25 2016
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