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A231659 Number of nX4 0..2 arrays with no element less than a strict majority of its horizontal, vertical and antidiagonal neighbors.

%I A231659 #6 Jul 23 2025 06:36:57
%S A231659 22,458,13434,345519,8300390,206363144,5175246459,128866716238,
%T A231659 3207643017150,79935039912485,1991696428397289,49618927570423938,
%U A231659 1236219496604319805,30799762343804253281,767351257510286891977
%N A231659 Number of nX4 0..2 arrays with no element less than a strict majority of its horizontal, vertical and antidiagonal neighbors.
%C A231659 Column 4 of A231663
%H A231659 R. H. Hardin, <a href="/A231659/b231659.txt">Table of n, a(n) for n = 1..210</a>
%e A231659 Some solutions for n=3
%e A231659 ..1..0..0..0....0..0..2..1....0..1..0..0....1..2..1..1....1..1..1..1
%e A231659 ..1..0..0..1....0..0..0..0....0..0..0..2....1..0..0..0....2..1..1..1
%e A231659 ..1..2..0..0....0..0..2..0....1..2..0..0....0..0..0..0....1..1..2..1
%K A231659 nonn
%O A231659 1,1
%A A231659 _R. H. Hardin_, Nov 12 2013