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A254814
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Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock sum of four medians of central row, central column, diagonal and antidiagonal nondecreasing horizontally and vertically
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1
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12730, 95110, 748444, 5525547, 37573674, 247721056, 1555784900, 9507310251, 56427672574, 327734201374, 1866901670840, 10464255213650, 57838849759168, 315906910077131, 1707701720462978, 9149366017437488, 48640167600953140
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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..0..0....0..0..0..1..1....1..0..0..1..1....1..1..1..1..1
..1..0..1..1..1....0..0..0..1..0....0..0..1..1..1....1..0..0..0..0
..1..0..1..1..1....1..0..1..1..0....0..1..1..1..1....0..1..1..1..1
..0..1..1..1..0....1..0..1..0..1....1..0..0..1..0....1..0..1..1..0
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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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