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A190065 Number of arrangements of n+1 nonzero numbers x(i) in -3..3 with the sum of div(x(i),x(i+1)), where div(a,b)=a/b produces the integer quotient implying a nonnegative remainder, equal to zero 1
6, 36, 166, 922, 5136, 28656, 162028, 910716, 5162308, 29554964, 169886511, 978214225, 5650347932, 32745824773, 190185910978, 1106505067832, 6449387884888, 37654438607875, 220148079884339, 1288689800220653 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 3 of A190071
LINKS
EXAMPLE
Some solutions for n=4
.-1...-2....2...-2...-1...-1....3....2....1....2...-1....2...-3....2....2...-1
..3...-3....1....3...-3...-1...-2....1....1....2....1...-3....3....1...-2...-1
..3....2...-1...-2...-3....1...-1...-1....1....3...-3...-3...-1...-1...-2...-1
.-2....1....1...-2....2....2....2....2...-1....2...-2...-3...-3...-3...-2....1
.-2...-1...-2...-2....3....3....3...-3....1...-1....2....2...-1....2....2...-1
CROSSREFS
Sequence in context: A203050 A203332 A351783 * A293068 A213294 A293886
KEYWORD
nonn
AUTHOR
R. H. Hardin May 04 2011
STATUS
approved

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Last modified March 1 17:48 EST 2024. Contains 370442 sequences. (Running on oeis4.)