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!)
A147346 Number of n X n binary arrays with all ones connected only in a 01010-11111-00100 pattern in any orientation. 0
1, 1, 1, 1, 13, 49, 229, 1867, 20463, 291821, 6315721, 181852653, 7128512813, 395610811947 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,5
LINKS
EXAMPLE
Maximal 8 X 8 example
.0.1.0.1.0.0.1.0
.1.1.1.1.1.0.1.1
.0.0.1.0.0.1.1.0
.0.1.0.0.0.0.1.1
.1.1.0.0.0.0.1.0
.0.1.1.0.0.1.0.0
.1.1.0.1.1.1.1.1
.0.1.0.0.1.0.1.0
CROSSREFS
Sequence in context: A319086 A146287 A289999 * A147452 A146782 A320469
KEYWORD
nonn
AUTHOR
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 29 07:27 EDT 2024. Contains 371265 sequences. (Running on oeis4.)