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A226406 Number of nondecreasing -3..3 vectors of length n whose dot product with some nondecreasing -3..3 vector equals n 0
2, 22, 74, 192, 418, 921, 1631, 2946, 4945, 7898, 12194, 18544, 26832, 38574, 54098, 74282, 100496, 134526, 176398, 229795, 295650, 375999, 474103, 593578, 734889, 905293, 1106873, 1343421 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 3 of A226410
LINKS
EXAMPLE
Some solutions for n=3
.-3...-1...-2....0....0...-2...-3...-3...-3...-3...-3...-2....1...-3...-3...-3
.-2...-1....0....0....1...-2...-2...-2....3...-1...-1...-1....1....0...-3...-1
..0...-1....3....1....2....3....3....1....3...-1....1...-1....3....1...-3....2
CROSSREFS
Sequence in context: A053940 A156480 A348488 * A226335 A123061 A050853
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 06 2013
STATUS
approved

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Last modified May 26 22:41 EDT 2024. Contains 372847 sequences. (Running on oeis4.)