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A220151
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Number of nX6 arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 nX6 array
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1
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21, 137, 1413, 16110, 214767, 3057777, 42648602, 564936966, 7083618786, 84318189822, 956390845855, 10375891940786, 108038550060777, 1082857046843897, 10473029871107227, 97945268899475975, 887304577889584770
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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=3
..1..0..0..0..0..0....2..1..0..0..0..0....2..1..0..0..0..0....1..0..0..0..0..0
..1..1..1..0..0..0....2..2..2..1..0..0....2..1..1..1..0..0....1..1..0..0..0..0
..2..2..1..1..0..0....2..2..2..2..1..1....2..1..1..1..2..1....2..1..1..1..0..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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