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A226406
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Number of nondecreasing -3..3 vectors of length n whose dot product with some nondecreasing -3..3 vector equals n
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0
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2, 22, 74, 192, 418, 921, 1631, 2946, 4945, 7898, 12194, 18544, 26832, 38574, 54098, 74282, 100496, 134526, 176398, 229795, 295650, 375999, 474103, 593578, 734889, 905293, 1106873, 1343421
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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
.-3...-1...-2....0....0...-2...-3...-3...-3...-3...-3...-2....1...-3...-3...-3
.-2...-1....0....0....1...-2...-2...-2....3...-1...-1...-1....1....0...-3...-1
..0...-1....3....1....2....3....3....1....3...-1....1...-1....3....1...-3....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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