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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A253486 Number of (5+1)X(n+1) 0..2 arrays with every 2X2 subblock ne-sw antidiagonal difference unequal to its neighbors horizontally and nw+se diagonal sum unequal to its neighbors vertically 1
187704, 13347930, 1029772234, 78704951512, 6038749847806, 462971719837062, 35518545028273216, 2724284315820353036, 208979165632398419724, 16029897424341313070302, 1229615670749498056544226 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 5 of A253482

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..103

EXAMPLE

Some solutions for n=1

..1..1....1..0....0..1....1..0....0..1....1..1....1..0....0..1....1..0....1..1

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

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

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

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

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

CROSSREFS

Sequence in context: A151422 A250541 A251798 * A253481 A186137 A233715

Adjacent sequences:  A253483 A253484 A253485 * A253487 A253488 A253489

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 02 2015

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 July 23 00:43 EDT 2019. Contains 325228 sequences. (Running on oeis4.)