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%I #6 Apr 05 2020 22:56:14
%S 8,42,415,5130,68458,966889,13941789,204883324,3047634270,45762072338,
%T 692220227870,10532157295267,161005503857341,2470999756894057,
%U 38049394554096755,587563040419449964,9095438545580032870
%N Number of 4 X n 0..1 arrays with the number of 1's horizontally, diagonally or antidiagonally adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.
%C Row 4 of A284334.
%H R. H. Hardin, <a href="/A284337/b284337.txt">Table of n, a(n) for n = 1..128</a>
%e Some solutions for n=4
%e ..0..1..1..0. .0..0..0..1. .0..0..1..0. .0..0..0..0. .0..0..1..0
%e ..1..1..1..0. .1..0..0..1. .1..1..1..1. .1..0..1..0. .0..1..0..1
%e ..1..0..0..1. .0..0..1..1. .0..1..0..1. .1..1..1..1. .1..0..1..1
%e ..0..0..0..0. .0..0..1..1. .0..0..1..0. .1..0..1..0. .1..0..1..0
%Y Cf. A284334.
%K nonn
%O 1,1
%A _R. H. Hardin_, Mar 25 2017
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