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!)
A186960 1/729 the number of (n+2)X9 0..2 arrays with each 3X3 subblock trace equal to some horizontal or vertical neighbor 3X3 subblock trace 0
40300479, 85776954369, 81727735220193, 96133158385481199, 108124495560461502429 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A186962

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

Some solutions for 4X9

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

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

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

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

CROSSREFS

Sequence in context: A307477 A218390 A186617 * A186571 A186572 A016929

Adjacent sequences:  A186957 A186958 A186959 * A186961 A186962 A186963

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 01 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 June 27 10:04 EDT 2022. Contains 354896 sequences. (Running on oeis4.)