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A236948
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Number of (n+1)X(7+1) 0..3 arrays with the maximum of every 2X2 subblock equal
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1
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601976968, 12569519212796, 178570730290963762, 3048340953731729204888, 47899069098870323021832428, 781823560338383397085729582626, 12541685260260879735250182260062400
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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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FORMULA
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Empirical recurrence of order 88 (see link above)
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EXAMPLE
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Some solutions for n=1
..0..0..0..0..0..0..3..3....0..0..0..0..1..0..2..0....0..0..0..0..1..0..2..0
..0..3..3..0..3..1..2..3....2..1..2..1..2..2..2..0....2..3..3..3..1..3..3..1
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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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