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A202032
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Number of nX7 zero-sum -1..1 arrays with rows and columns lexicographically nondecreasing
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0
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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
.-1.-1.-1.-1..0..0..1...-1.-1.-1..0..1..1..1...-1..0..0..0..0..0..1
..0..1..1..1.-1..0..1....0..0..1.-1..0..0..0....0.-1..0..0..0..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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