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Number of n X n 0..2 arrays with rows, columns, diagonals and antidiagonals unimodal
0

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

%S 3,81,5600,480236,41586328,3437215802,268717054875,19964011820443

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

%C Diagonal of A223742

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 26 2013