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A226336
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Number of nondecreasing -4..4 vectors of length n whose dot product with some other -4..4 vector equals n
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1
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2, 34, 130, 480, 1139, 2973, 6068, 12823, 23590, 43620, 74135, 125962, 200993, 319516, 486423, 735303, 1075392, 1562050, 2210979, 3107839, 4279431, 5852307, 7870810, 10518228, 13859945, 18155322, 23504230, 30259780, 38566432, 48902774
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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
.-2...-1...-3...-1...-1...-2...-3...-3....0...-4....1...-1...-3....3...-1...-2
.-2....2...-3...-1...-1...-1....2....0....1....2....2....4....1....3....0....2
..1....4...-3....1....0....4....2....2....1....3....3....4....3....4....4....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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