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!)
A186614 Number of (n+5)X9 binary arrays with every 6X6 subblock commuting with each horizontal and vertical neighbor 6X6 subblock 1
654700, 25852, 30997, 88336, 439891, 1478651, 2676699, 3211547, 3276255, 3284387, 3291623, 3298867, 3306139, 3313675, 3324899, 3352139, 3475367, 4273524, 6521085, 9738958, 13025227, 16335644, 19749285, 23845099, 29397589, 35927927, 42537885 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A186619

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..62

FORMULA

Empirical: a(n)=a(n-1)+a(n-4)-a(n-5)+a(n-6)-a(n-7)-a(n-10)+a(n-11)+a(n-12)-a(n-16) for n>23

EXAMPLE

Some solutions for 7X9

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

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

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

..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0

..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0

..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0

..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0

CROSSREFS

Sequence in context: A162892 A232675 A321064 * A251279 A205941 A287591

Adjacent sequences: A186611 A186612 A186613 * A186615 A186616 A186617

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 24 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 February 6 23:12 EST 2023. Contains 360111 sequences. (Running on oeis4.)