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

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A189549 Number of arrangements of 6 nonzero numbers x(i) in -n..n with the sum of trunc(x(i)/x(i+1)) equal to zero 1
0, 552, 5416, 26804, 97836, 274132, 683144, 1481908, 2937048, 5414876, 9605792, 15831096, 25469448, 39609448, 59492044, 86819652, 124912364, 174698948, 241615316, 327281004, 436632904, 575430892, 752423588, 965700832, 1230962864 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Row 5 of A189545
LINKS
EXAMPLE
Some solutions for n=5
.-3....3...-3....1....2...-5....2...-1...-4...-5...-5....2...-4...-3....1...-1
.-1....5....3....1...-4....5....1....4...-1...-5...-5....2....2....2...-3...-2
.-1....1....4...-3....4....4...-3...-2...-3...-2...-4...-2...-1...-2....4....2
.-5...-4...-3....2....2...-5...-4....5...-4....3....2...-3....4....5...-3...-5
.-5....5...-4...-3....5....3...-3....5....1...-1...-3....2....1....5...-5...-4
..1...-1...-2...-5...-4....2....1....4...-5...-5....4....2...-4....3...-4...-5
CROSSREFS
Sequence in context: A014360 A158636 A251161 * A282595 A290048 A023914
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 July 22 09:51 EDT 2024. Contains 374490 sequences. (Running on oeis4.)