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A253956
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Number of (n+2)X(3+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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16544, 142800, 1501724, 16186768, 168988280, 1798654745, 18976071008, 202545992765, 2143481639632, 22818628205489, 241796247828332, 2570703133363269, 27261775134186480, 289612451195150609
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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..0..1..1....0..0..0..0..1....0..0..1..0..0....0..1..1..0..1
..1..0..1..1..1....0..0..0..0..0....1..1..1..1..1....1..1..1..0..1
..1..0..1..1..1....0..0..0..0..0....0..1..1..1..0....1..1..0..0..1
..0..1..0..1..1....1..1..1..1..0....1..0..1..1..0....1..0..0..1..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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