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%I A284109 #6 Apr 05 2020 22:29:46
%S A284109 6,46,435,5896,80200,1143533,16442183,240146980,3538905880,
%T A284109 52568393480,785872613710,11812436439395,178382105544907,
%U A284109 2704771593353921,41159406062915663,628343298365437332,9619941922149572518
%N A284109 Number of n X 4 0..1 arrays with the number of 1's king-move adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.
%C A284109 Column 4 of A284113.
%H A284109 R. H. Hardin, <a href="/A284109/b284109.txt">Table of n, a(n) for n = 1..191</a>
%e A284109 Some solutions for n=4
%e A284109 ..0..0..1..1. .0..0..0..0. .0..0..1..0. .0..0..1..0. .0..0..1..1
%e A284109 ..0..1..0..0. .0..1..1..1. .0..0..1..1. .1..0..1..1. .0..0..1..1
%e A284109 ..0..1..1..1. .1..0..0..1. .0..0..1..1. .0..1..0..1. .0..0..1..1
%e A284109 ..0..1..0..1. .1..1..0..1. .0..1..0..1. .1..1..0..0. .1..0..0..1
%Y A284109 Cf. A284113.
%K A284109 nonn
%O A284109 1,1
%A A284109 _R. H. Hardin_, Mar 20 2017

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