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A226415 Number of nondecreasing -n..n vectors of length 7 whose dot product with some nondecreasing -n..n vector equals 7. 0
8, 281, 1631, 6041, 18765, 47291, 113273, 235677, 465959, 853593, 1515861 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Row 7 of A226410.
LINKS
EXAMPLE
Some solutions for n=3
.-3...-2...-3...-3...-3...-3...-1...-2...-3...-2...-3...-3...-3...-3...-3...-3
.-1...-1...-1....1...-3...-3....1...-2...-3...-2...-3...-2...-3...-3...-3...-2
.-1...-1...-1....1...-3...-3....1...-1...-1...-2...-1....0...-2....1...-3...-2
.-1....1....0....1...-1...-2....1....0...-1...-1....3....1....0....1...-1...-1
.-1....2....1....1...-1...-1....1....3....0....0....3....1....0....1....1....2
.-1....2....3....1....2....0....1....3....2....1....3....1....3....1....2....3
..2....2....3....2....2....3....2....3....2....1....3....3....3....3....3....3
CROSSREFS
Cf. A226410.
Sequence in context: A280761 A247215 A079929 * A226346 A217488 A332128
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 06 2013
STATUS
approved

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Last modified July 22 16:06 EDT 2024. Contains 374540 sequences. (Running on oeis4.)