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Number of n X n 0..3 arrays with rows, antidiagonals and columns unimodal
0

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

%S 4,256,61733,26631193,15947472102,12025063773557,10962346407561257,

%T 11777774040586957640

%N Number of n X n 0..3 arrays with rows, antidiagonals and columns unimodal

%C Diagonal of A223762

%e Some solutions for n=3

%e ..0..1..3....1..2..3....2..3..0....0..2..0....2..3..0....0..3..2....0..0..2

%e ..1..3..2....0..0..2....3..2..0....0..2..3....2..2..2....2..3..3....0..3..3

%e ..3..0..0....0..0..1....3..2..0....1..3..2....2..2..2....1..2..2....3..1..0

%K nonn

%O 1,1

%A _R. H. Hardin_ Mar 27 2013