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A226425
Number of nondecreasing -n..n vectors of length 4 whose dot product with some lexicographically greater or equal nondecreasing -n..n vector equals 4
1
5, 57, 159, 411, 800, 1415, 2394, 3848, 5764, 8484, 12067, 16546, 22403, 29687, 38104, 48908, 61775, 76410, 94297, 115030, 137929, 165596, 197096, 231351, 271259, 316553, 365077, 421509, 484107, 549942, 626240, 710102, 798025, 898590, 1006589
OFFSET
1,1
COMMENTS
Row 4 of A226422
LINKS
EXAMPLE
Some solutions for n=3
..1...-1...-2...-2...-2...-3...-3...-3...-1...-3....0...-1...-3...-1...-2...-1
..1...-1...-1...-2...-1...-3...-2....0....0...-2....0....2....1...-1...-2....0
..1....1....0...-1....0....1...-2....0....1....1....1....2....2....2...-2....0
..1....3....3....2....0....3....1....2....1....2....1....2....2....3....2....2
CROSSREFS
Sequence in context: A356134 A363059 A163793 * A076455 A196650 A197454
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 06 2013
STATUS
approved