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A226339
Number of nondecreasing -7..7 vectors of length n whose dot product with some other -7..7 vector equals n
0
2, 90, 578, 2962, 11041, 38678, 114235, 319185, 812075, 1960123, 4443581
OFFSET
1,1
COMMENTS
Column 7 of A226340
EXAMPLE
Some solutions for n=3
.-4...-5...-1....4...-7...-2...-5...-6...-5...-7...-7....5...-3....1...-7...-7
..0...-2....5....5...-3...-2...-3....1...-5...-6...-4....7...-3....7...-5...-1
..7....7....5....7...-2....3...-1....7....7....4....3....7...-3....7...-2....3
CROSSREFS
Sequence in context: A355574 A076532 A212301 * A157064 A058527 A342329
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 04 2013
STATUS
approved