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A226418
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Number of nondecreasing -4..4 vectors of length n whose dot product with some lexicographically greater or equal nondecreasing -4..4 vector equals n
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0
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2, 25, 104, 411, 968, 2689, 5573, 12301, 22398, 41891, 71784, 124195, 196235, 313967, 479501, 730157, 1062596, 1548604
(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
.-3...-3...-4...-1...-3...-3...-4...-2...-1...-2...-4...-3...-4...-3...-1...-3
.-1...-3...-1....1...-2....2...-4...-1....0...-1....1...-3...-1...-2...-1...-3
..1....2....4....2....1....2...-3....0....1....4....1....1....3....2....1....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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