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!)
A203044 Number of (n+3)X7 binary arrays with no more than one of any consecutive four bits set in any row or column 1
6365, 41617, 283870, 1941572, 12958109, 86445746, 579826944, 3901532872, 26198114119, 175675221993, 1178208385041, 7907824387651, 53079768577632, 356204915725459, 2390083486476288, 16038176530380477, 107628315946156767 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A203048

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=2

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

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

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

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

CROSSREFS

Sequence in context: A292743 A117050 A292040 * A105009 A237380 A251406

Adjacent sequences:  A203041 A203042 A203043 * A203045 A203046 A203047

KEYWORD

nonn

AUTHOR

R. H. Hardin Dec 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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified July 5 02:02 EDT 2022. Contains 355087 sequences. (Running on oeis4.)