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A253819
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Number of (n+2)X(7+2) 0..1 arrays with every 3X3 subblock diagonal sum minus antidiagonal median nondecreasing horizontally and vertically
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1
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2201616, 7125170, 19727216, 64664493, 232090516, 681245242, 1124641848, 2291068882, 6153419870, 17431190894, 49973500334, 132892076022, 373427021268, 1052015397559, 3106587640168, 8754985398611, 24439371115678, 67329937821441
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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..0..0..0..1..1..0..0....0..0..0..0..0..1..0..0..0
..1..0..0..1..0..1..0..0..0....0..1..1..0..1..0..0..0..1
..1..0..0..0..0..1..1..0..1....1..0..0..0..1..1..1..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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