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A200769 Number of n X n 0..2 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other. 0

%I #8 Apr 26 2017 11:40:09

%S 3,5,13,342,7725,91755,17965438,2189118202,159001066390

%N Number of n X n 0..2 arrays with every row and column running average nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.

%C Diagonal of A200777.

%e Some solutions for n=4

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

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

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

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

%Y Cf. A200777.

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 22 2011

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Last modified April 25 14:06 EDT 2024. Contains 371988 sequences. (Running on oeis4.)