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A183546 Number of n X n 0..2 arrays with each element equal to either the maximum or the minimum of its horizontal and vertical neighbors 0

%I

%S 0,15,583,95101,63868351,177385265619,2043774880960645,

%T 97587614786720584857

%N Number of n X n 0..2 arrays with each element equal to either the maximum or the minimum of its horizontal and vertical neighbors

%C Diagonal of A183554

%e Some solutions for 3X3

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

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

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

%K nonn

%O 1,2

%A _R. H. Hardin_ Jan 05 2011

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Last modified October 5 23:01 EDT 2022. Contains 357261 sequences. (Running on oeis4.)