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Number of nX4 0..2 arrays with no element less than a strict majority of its horizontal, vertical and antidiagonal neighbors
1

%I #4 Nov 12 2013 12:55:24

%S 22,458,13434,345519,8300390,206363144,5175246459,128866716238,

%T 3207643017150,79935039912485,1991696428397289,49618927570423938,

%U 1236219496604319805,30799762343804253281,767351257510286891977

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

%C Column 4 of A231663

%H R. H. Hardin, <a href="/A231659/b231659.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

%e ..1..0..0..0....0..0..2..1....0..1..0..0....1..2..1..1....1..1..1..1

%e ..1..0..0..1....0..0..0..0....0..0..0..2....1..0..0..0....2..1..1..1

%e ..1..2..0..0....0..0..2..0....1..2..0..0....0..0..0..0....1..1..2..1

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 12 2013