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Number of 4Xn 0..2 arrays with no element less than a strict majority of its horizontal and antidiagonal neighbors
1

%I #4 Nov 17 2013 06:58:45

%S 81,704,11517,196196,3668759,66962048,1199720929,21351363302,

%T 380166026971,6777797788833,120894842412728,2156413213871354,

%U 38461828093868228,685987901327913013,12234941433232653332

%N Number of 4Xn 0..2 arrays with no element less than a strict majority of its horizontal and antidiagonal neighbors

%C Row 4 of A232023

%H R. H. Hardin, <a href="/A232026/b232026.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 17 2013