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!)
A188307 Number of (n+1)X6 binary arrays with every 2X2 subblock sum equal to exactly one or two horizontal and vertical neighbor 2X2 subblock sums 1
380, 14832, 203584, 3415196, 53468700, 878907878, 14070003616, 228625683370, 3680915898074, 59626244517814, 962293522215168, 15566719628153548, 251445428797343950, 4065446796913711010, 65691624104999816724 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A188311

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..22

EXAMPLE

Some solutions for 3X6

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

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

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

CROSSREFS

Sequence in context: A250635 A233952 A259520 * A214145 A185493 A023910

Adjacent sequences:  A188304 A188305 A188306 * A188308 A188309 A188310

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 27 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 January 17 02:12 EST 2022. Contains 350377 sequences. (Running on oeis4.)