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A226402
Number of nondecreasing -n..n vectors of length 5 whose dot product with some nonincreasing -n..n vector equals 5
0
2, 38, 258, 874, 2674, 5272, 10554, 18170, 30814, 48204, 75312, 108574, 158900, 219746, 304160, 405086, 543242, 698314, 909178, 1146250, 1449110, 1790744, 2228894
OFFSET
1,1
COMMENTS
Row 5 of A226398
EXAMPLE
Some solutions for n=3
.-2...-2...-2...-3...-2...-3...-2...-3...-2...-1...-3....0...-3...-3...-2...-3
.-1...-1...-2...-1...-1...-2...-2...-3...-1....1...-3....1...-3...-1...-2...-3
..0...-1....2...-1...-1....3...-2...-3...-1....1...-1....2...-3...-1...-1...-2
..0....0....3...-1...-1....3...-2...-1...-1....3....0....2...-1....0...-1....1
..0....1....3....3....2....3....3....2....0....3....3....2....1....1....1....2
CROSSREFS
Sequence in context: A105645 A098456 A214909 * A217214 A303618 A179503
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 06 2013
STATUS
approved