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A258905
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Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock diagonal median plus antidiagonal median nondecreasing horizontally and vertically
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1
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11872, 86968, 659792, 5271330, 38603552, 279149887, 2026873370, 14414890711, 101729978782, 713646685384, 4972387097538, 34447528903062, 237597968142112, 1632011477851887, 11168737053194688, 76188905928464959, 518233427901264780
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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..0..1..1..1....1..1..0..0..0....1..0..0..0..1....1..1..0..0..1
..0..0..1..0..1....1..0..1..1..0....1..0..0..1..1....1..0..1..1..1
..1..1..1..0..1....1..0..1..1..0....1..0..0..1..1....1..0..1..1..0
..0..1..1..1..1....1..1..0..0..0....0..1..1..1..1....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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