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!)
A183320 Number of nX8 binary arrays with an element zero only if there are an even number of ones to its left and an even number of ones above it 1
55, 523, 9767, 125103, 1872913, 25528515, 360327392, 4963103592, 68795107993, 947461430557, 13049865962515, 179449989707905, 2465460224449227, 33861928082629563, 464723391441659251, 6377980328407833025 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 8 of A183322
LINKS
EXAMPLE
Some solutions for 5X8
..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..1..1..1....0..0..0..0..0..0..0..1....0..0..0..0..0..0..0..0
..1..1..0..0..0..1..1..1....0..1..1..0..0..0..1..1....0..0..0..0..0..0..0..1
..1..1..1..1..1..1..0..1....0..1..1..0..0..1..1..0....0..0..0..1..1..0..1..1
..1..1..1..1..1..1..1..1....0..1..1..1..1..1..1..1....0..1..1..1..1..1..1..0
CROSSREFS
Sequence in context: A241699 A262103 A138053 * A185028 A222797 A180326
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 03 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 March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)