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A235980
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Number of (n+1)X(7+1) 0..2 arrays with the upper median equal to the lower median in every 2X2 subblock
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1
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354015, 44112111, 4798700327, 636000634655, 82270776987717, 11092727310560751, 1487588729246707713, 201149401548574576491, 27165441057301472088543, 3674737831623458795230537
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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Some solutions for n=1
..0..0..1..0..1..2..2..2....0..1..1..1..1..1..1..2....0..2..0..0..2..0..2..2
..1..0..0..0..0..1..2..0....2..1..0..1..1..1..1..1....2..2..2..0..0..0..0..2
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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