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Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..3 7Xn array

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`%I #5 Nov 20 2012 16:57:44
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`%S 16384,410218,340133516,64278999490,23498366579584,7051080210074740,
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`%T 2345237392530015812,767685099510019845022
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`%N Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..3 7Xn array
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`%C Row 7 of A218522
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`%e Some solutions for n=3
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`%e ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
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`%e ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
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`%e ..0..0..0....0..0..0....0..0..0....0..0..2....0..0..0....0..0..0....0..0..0
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`%e ..1..0..1....3..0..3....1..0..2....0..0..2....1..0..3....0..1..3....2..0..3
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`%e ..3..1..2....3..2..1....2..2..3....3..0..0....1..0..3....2..0..1....3..3..3
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`%e ..2..0..2....1..1..1....2..2..2....0..0..1....0..0..0....0..0..2....3..1..1
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`%e ..0..0..1....1..2..2....3..2..2....1..2..2....0..0..3....2..2..2....3..0..0
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`%K nonn
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`%O 1,1
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`%A _R. H. Hardin_ Oct 31 2012
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