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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A252173 Number of length n+2 0..4 arrays with the sum of the maximum minus the minimum of adjacent triples multiplied by some arrangement of +-1 equal to zero 1
5, 285, 687, 6361, 30315, 179225, 907249, 4728833, 23847033, 120644221, 605522767, 3038459385, 15215512685, 76167143089, 381063555999, 1906111738921, 9532798497759, 47671420448717, 238379347788679, 1191968945583273 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A252177

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..84

EXAMPLE

Some solutions for n=6

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

..0....0....0....2....1....0....2....2....1....0....0....0....1....0....0....2

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

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

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

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

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

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

CROSSREFS

Sequence in context: A203521 A276556 A283569 * A265966 A227579 A257045

Adjacent sequences:  A252170 A252171 A252172 * A252174 A252175 A252176

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 15 2014

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified November 13 11:34 EST 2018. Contains 317133 sequences. (Running on oeis4.)