login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 59th year, we have over 358,000 sequences, and we’ve crossed 10,300 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
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

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 1 15:59 EST 2022. Contains 358468 sequences. (Running on oeis4.)