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A226407 Number of nondecreasing -4..4 vectors of length n whose dot product with some nondecreasing -4..4 vector equals n 0
2, 34, 130, 479, 1123, 2959, 6041, 12820, 23401, 43439, 73976, 125962, 199900, 318926, 485768, 735222, 1072033 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 4 of A226410
LINKS
EXAMPLE
Some solutions for n=3
.-2....1...-1...-3...-4...-1...-3...-3...-3...-4...-4...-1...-4...-1...-3...-4
..1....3....0....0...-4...-1...-1....2....1...-4....3....0...-3....0....0...-1
..4....3....4....3....3....0...-1....4....3....1....4....3...-3....1....1....3
CROSSREFS
Sequence in context: A263226 A200821 A200166 * A226336 A213826 A259108
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 06 2013
STATUS
approved

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Last modified May 20 06:19 EDT 2024. Contains 372703 sequences. (Running on oeis4.)