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A237005
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Number of (n+1)X(6+1) 0..3 arrays with the upper median plus the lower median of every 2X2 subblock equal
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1
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677344, 74701920, 8124638140, 1329345087772, 191579721419964, 29902151651515988, 4486536180370819012, 688508560612338869952, 104327969745494313358544, 15926368816560193698159552
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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..2..0..1..1..1..1....0..1..3..1..0..1..3....0..1..1..0..1..2..0
..3..0..2..1..0..1..3....1..1..0..1..3..1..1....1..3..1..1..1..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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