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A226339
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Number of nondecreasing -7..7 vectors of length n whose dot product with some other -7..7 vector equals n
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0
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2, 90, 578, 2962, 11041, 38678, 114235, 319185, 812075, 1960123, 4443581
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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
.-4...-5...-1....4...-7...-2...-5...-6...-5...-7...-7....5...-3....1...-7...-7
..0...-2....5....5...-3...-2...-3....1...-5...-6...-4....7...-3....7...-5...-1
..7....7....5....7...-2....3...-1....7....7....4....3....7...-3....7...-2....3
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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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