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A189541 Number of arrangements of n+1 nonzero numbers x(i) in -5..5 with the sum of trunc(x(i)/x(i+1)) equal to zero 1
40, 152, 1340, 11276, 97836, 911144, 8485264, 80270588, 762015216, 7245223968, 69300586592, 665123270568, 6402235178628, 61805759252168, 598018355467584, 5798061848435388, 56317251524412720, 547885648488675312 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A189545

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..156

EXAMPLE

Some solutions for n=6

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

.-5...-5...-5...-4...-5...-4...-4...-4...-4...-4...-4...-4...-5...-4...-5...-5

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

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

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

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

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

CROSSREFS

Sequence in context: A233733 A233726 A100766 * A201233 A135848 A089548

Adjacent sequences:  A189538 A189539 A189540 * A189542 A189543 A189544

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 23 2011

STATUS

approved

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Last modified May 20 13:32 EDT 2022. Contains 353873 sequences. (Running on oeis4.)