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A226412 Number of nondecreasing -n..n vectors of length 4 whose dot product with some nondecreasing -n..n vector equals 4 1
5, 67, 192, 479, 963, 1709, 2893, 4633, 6895, 10079, 14273, 19437, 26217, 34565, 44183, 56485, 71133, 87649, 107907, 131199, 156957, 187941, 223227, 261361, 305927, 356437, 410419, 473007, 542575, 615417, 700027, 792759, 890017, 1001073 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 4 of A226410

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..43

EXAMPLE

Some solutions for n=3

..0...-1...-2...-2....1...-2...-1...-2...-2....0...-2...-3....1...-2...-1...-3

..1....0...-2...-2....2....0...-1...-2....0....0...-1...-1....1...-2....1...-2

..2....0...-2...-1....3....0....1...-2....0....2....0....2....2...-1....1....0

..3....3...-1...-1....3....1....1...-2....0....3....1....3....2....3....2....1

CROSSREFS

Sequence in context: A057171 A185230 A142009 * A226343 A067393 A212731

Adjacent sequences:  A226409 A226410 A226411 * A226413 A226414 A226415

KEYWORD

nonn

AUTHOR

R. H. Hardin Jun 06 2013

STATUS

approved

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Last modified June 26 04:11 EDT 2019. Contains 324369 sequences. (Running on oeis4.)