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A226338 Number of nondecreasing -6..6 vectors of length n whose dot product with some other -6..6 vector equals n 0
2, 66, 362, 1736, 5621, 18509, 48341, 125429, 288869, 645578, 1338336, 2704063, 5170784, 9654395, 17329591, 30416751, 51788999, 86492839 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A226340

LINKS

Table of n, a(n) for n=1..18.

EXAMPLE

Some solutions for n=3

.-5...-4...-3...-1....2...-6...-6...-4...-3...-1...-4...-5...-6...-3...-3...-2

.-1...-1...-3....0....3...-3....5....5....3...-1...-1...-3...-5....1....2....4

..4....2....4....3....4....0....6....5....5....5...-1...-2...-4....4....4....5

CROSSREFS

Sequence in context: A075809 A257788 A226409 * A131472 A098532 A159716

Adjacent sequences:  A226335 A226336 A226337 * A226339 A226340 A226341

KEYWORD

nonn

AUTHOR

R. H. Hardin Jun 04 2013

STATUS

approved

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Last modified February 20 13:40 EST 2020. Contains 332077 sequences. (Running on oeis4.)