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Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 7Xn array
0

%I #3 Nov 25 2012 04:56:01

%S 28,98,1506,18486,220182,2706117,35011623,461414270,5979059010,

%T 75005582670

%N Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 7Xn array

%C Row 7 of A219686

%e Some solutions for n=3

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Nov 25 2012