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Majority value maps: number of n X 4 binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal, diagonal and antidiagonal neighbors in a random 0..1 n X 4 array.
0

%I #5 Mar 09 2023 15:43:08

%S 7,51,694,8819,110911,1409467,17911553,227545744,2891148146,

%T 36733858686,466722630011

%N Majority value maps: number of n X 4 binary arrays indicating the locations of corresponding elements equal to at least half of their horizontal, diagonal and antidiagonal neighbors in a random 0..1 n X 4 array.

%C Column 4 of A220226.

%e Some solutions for n=3

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

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

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

%Y Cf. A220226.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 08 2012