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A226395
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Number of nondecreasing -4..4 vectors of length n whose dot product with some nonincreasing -4..4 vector equals n
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0
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2, 32, 120, 448, 874, 2498, 4280, 10992, 18566, 32056, 52408, 107154, 142740, 232578
(list;
graph;
refs;
listen;
history;
text;
internal format)
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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....2...-3...-4...-3...-3...-4....1...-2....1...-3....0....0...-1...-3...-2
.-3....3...-2....0...-2....2...-1....4...-2....1....4....1....3...-1...-3...-1
.-3....3....3....3....0....2....2....4....1....1....4....1....3...-1...-2....0
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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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