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A231696 Number of nX4 0..3 arrays with no element less than a strict majority of its horizontal, vertical and antidiagonal neighbors.

%I A231696 #6 Jul 23 2025 06:37:43
%S A231696 50,1998,115583,6074096,286808607,14007173906,696904625544,
%T A231696 34390368202345,1693611631652448,83546478885400765,
%U A231696 4121506683565058802,203261277285880002250,10024941696145652614843,494455010365407138814774
%N A231696 Number of nX4 0..3 arrays with no element less than a strict majority of its horizontal, vertical and antidiagonal neighbors.
%C A231696 Column 4 of A231700
%H A231696 R. H. Hardin, <a href="/A231696/b231696.txt">Table of n, a(n) for n = 1..210</a>
%e A231696 Some solutions for n=3
%e A231696 ..0..0..0..1....2..0..0..2....0..0..1..3....3..0..1..1....1..2..3..2
%e A231696 ..1..0..1..0....0..3..0..2....0..0..3..3....0..0..0..2....1..1..1..1
%e A231696 ..0..0..0..0....0..0..0..3....0..2..2..2....1..0..0..3....1..3..1..1
%K A231696 nonn
%O A231696 1,1
%A A231696 _R. H. Hardin_, Nov 12 2013