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A226412
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Number of nondecreasing -n..n vectors of length 4 whose dot product with some nondecreasing -n..n vector equals 4
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1
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5, 67, 192, 479, 963, 1709, 2893, 4633, 6895, 10079, 14273, 19437, 26217, 34565, 44183, 56485, 71133, 87649, 107907, 131199, 156957, 187941, 223227, 261361, 305927, 356437, 410419, 473007, 542575, 615417, 700027, 792759, 890017, 1001073
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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
..0...-1...-2...-2....1...-2...-1...-2...-2....0...-2...-3....1...-2...-1...-3
..1....0...-2...-2....2....0...-1...-2....0....0...-1...-1....1...-2....1...-2
..2....0...-2...-1....3....0....1...-2....0....2....0....2....2...-1....1....0
..3....3...-1...-1....3....1....1...-2....0....3....1....3....2....3....2....1
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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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