login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A200550 Number of -5..5 arrays x(0..n+1) of n+2 elements with zero sum and nonzero second differences 1
80, 836, 7778, 75792, 737460, 7286542, 72366820, 723237026, 7258296910, 73127883596, 739101010202, 7490787201124, 76099633989974, 774719436417776, 7901415122713726, 80719023935569240, 825814487838111514 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A200553

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..145

EXAMPLE

Some solutions for n=3

..3....5....3....1...-3....2...-5...-1....0...-5...-4...-3...-5....0...-5....3

.-1....0...-2...-3....3...-4....5....5...-5...-3....3....2...-2...-3....1...-2

..0...-2....1....5...-1....1...-4...-3....4....1....0...-5....2....3....4....3

.-3...-2....0....2....2....1....3....3....4....3...-1....1....2....2...-2...-3

..1...-1...-2...-5...-1....0....1...-4...-3....4....2....5....3...-2....2...-1

CROSSREFS

Sequence in context: A279745 A062911 A024392 * A052519 A246545 A198400

Adjacent sequences:  A200547 A200548 A200549 * A200551 A200552 A200553

KEYWORD

nonn

AUTHOR

R. H. Hardin Nov 19 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 25 22:17 EDT 2019. Contains 323576 sequences. (Running on oeis4.)