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A201493
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Number of nX5 zero-sum -2..2 arrays with rows and columns lexicographically nondecreasing
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0
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12, 7815, 7798656, 6697376240, 4585552158911, 2571822263246639, 1219998885223727883, 501770963443215883902, 182271590618268117246577, 59312881704712898493358018, 17484065266324835514539288191
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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..0..0..1..1...-1.-1.-1..0..2...-2.-1..1..1..1...-2.-1..0..0..1
..0..0..2.-2.-1...-1..0..0..0..2...-1.-1.-2..2..2....2.-1.-1..0..2
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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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