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A237157
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Number of (n+1)X(7+1) 0..3 arrays with the maximum plus the minimum of every 2X2 subblock equal
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1
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64386416, 190715003652, 405233994691412, 1004492744125300076, 2398218580217967150868, 5819740293216462674503208, 14064650652552258429078818580, 34048713269023599066996735917232
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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..2..0..2..0..2..1....0..0..2..1..0..2..2..0....0..0..2..1..2..2..0..2
..0..2..2..1..0..1..0..1....0..2..0..2..1..0..0..0....0..2..2..0..1..0..0..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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