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A238042
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Number of (n+1)X(4+1) 0..2 arrays with the upper median minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one
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1
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6064, 61668, 621780, 6698520, 70363916, 735878108, 7744640808, 81468910084, 855621962264, 8992624643448, 94515770797736, 993327648282692, 10439451695451992, 109715564203291848, 1153058256519031332
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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=2
..2..1..0..2..0....0..2..1..0..0....2..2..1..2..1....1..1..0..2..2
..0..2..1..2..0....0..1..0..1..0....1..2..1..0..0....2..0..2..0..1
..2..0..2..2..1....0..0..1..2..2....0..2..2..2..0....1..2..0..1..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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