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A253954
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Number of (n+2)X(n+2) 0..1 arrays with every 3X3 subblock diagonal median minus antidiagonal median nondecreasing horizontally, vertically and ne-to-sw antidiagonally
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1
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512, 20868, 1501724, 240903042, 77993064012, 54401550145686, 78151552269875720, 232106691536153580818, 1434896543229609953653472, 18395963378201546364490900139, 489591524753759022642241209084588
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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
..0..1..1..0....0..1..1..1....1..1..1..1....1..0..1..0....0..0..1..0
..1..1..0..0....1..0..1..0....0..0..0..0....0..0..0..1....1..1..0..0
..1..1..0..1....1..0..0..0....1..0..0..0....0..0..0..1....0..0..1..0
..0..1..0..1....1..0..1..0....0..1..0..1....1..0..1..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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