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A223825 Number of n X n 0..2 arrays with rows and columns unimodal 0

%I #5 Dec 18 2015 18:18:32

%S 3,81,6166,738482,111026387,18986502099,3529435151262,698068937559304

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

%C Diagonal of A223831

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 27 2013

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Last modified February 23 18:28 EST 2024. Contains 370283 sequences. (Running on oeis4.)