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Majority value maps: number of nX4 binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal, vertical and antidiagonal neighbors in a random 0..3 nX4 array
1

%I #4 Dec 10 2012 09:45:04

%S 7,155,3024,50451,822483,13221364,211771497,3387519403,54157226596,

%T 865646398021,13835289533051,221116601005587,3533854122337635,

%U 56477253797259894,902604704988499209,14425180099380063835

%N Majority value maps: number of nX4 binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal, vertical and antidiagonal neighbors in a random 0..3 nX4 array

%C Column 4 of A220313

%H R. H. Hardin, <a href="/A220311/b220311.txt">Table of n, a(n) for n = 1..20</a>

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 10 2012