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%I
%S 64,2719,170155,19371893,2058141264,232036495984,26772321109067,
%T 3148948157013672,375099683101859897,45101225320947864321,
%U 5461569534638135452419,665104722603120565892383
%N Number of 7 X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.
%C Row 7 of A284222.
%H R. H. Hardin, <a href="/A284228/b284228.txt">Table of n, a(n) for n = 1..24</a>
%e Some solutions for n=3
%e ..0..0..0. .0..0..0. .0..1..0. .0..0..0. .0..0..0. .0..1..0. .0..0..0
%e ..1..1..0. .1..1..0. .0..1..0. .0..1..1. .1..0..0. .0..0..1. .1..0..1
%e ..0..1..1. .1..1..1. .0..1..0. .1..1..1. .1..0..1. .1..0..0. .1..0..0
%e ..1..1..1. .0..0..0. .1..0..1. .1..1..0. .1..1..0. .1..1..1. .1..0..1
%e ..0..1..0. .1..1..1. .1..0..1. .0..0..1. .1..0..0. .1..0..1. .0..1..1
%e ..1..0..1. .1..1..0. .1..1..1. .1..0..1. .0..1..1. .0..0..1. .0..0..0
%e ..0..0..1. .1..0..0. .0..1..0. .1..1..0. .1..1..0. .0..1..0. .1..1..0
%Y Cf. A284222.
%K nonn
%O 1,1
%A _R. H. Hardin_, Mar 23 2017
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