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%I #7 Jan 14 2017 01:42:27
%S 58,1123,28192,782948,22581061,661355087,19597196907,586441134417,
%T 17688240987365,536871796215114,16377770252298658,501706560946729804,
%U 15422847845337959631,475525543795160585979,14699379057329857140441
%N 1/4 the number of (n+1) X 5 binary arrays with equal numbers of 2 X 2 subblocks with sums 1 and 3.
%C Column 4 of A184604.
%H R. H. Hardin, <a href="/A184599/b184599.txt">Table of n, a(n) for n = 1..176</a>
%e Some solutions for 3 X 5:
%e ..0..1..0..0..0....0..0..0..1..0....1..1..1..1..0....1..0..0..0..0
%e ..0..0..1..1..1....0..0..1..1..1....0..0..0..0..1....0..1..1..0..0
%e ..0..1..1..1..0....0..1..0..0..0....0..0..0..0..1....0..1..0..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Jan 18 2011
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