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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
OFFSET
1,1
COMMENTS
Column 4 of A226410
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