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A224256 Number of n X n 0..2 arrays with rows and antidiagonals unimodal and columns nondecreasing 0

%I

%S 3,36,648,12467,238366,4480391,83124099,1530419762,28072690614,

%T 514262753781,9420094252771

%N Number of n X n 0..2 arrays with rows and antidiagonals unimodal and columns nondecreasing

%C Diagonal of A224262

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Apr 02 2013

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Last modified September 27 06:29 EDT 2022. Contains 357052 sequences. (Running on oeis4.)