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!)
A146807 Number of n X n binary arrays with all ones connected only in a 1000-1010-1111 pattern in any orientation. 0
1, 1, 1, 17, 65, 349, 3731, 77219, 2029815, 63522619, 3272591757, 282134745907 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..12.

EXAMPLE

Maximal 8 X 8 example

.1.1.1.0.1.1.1.1

.1.0.0.0.0.1.0.1

.1.1.0.0.1.0.0.1

.1.0.1.0.1.0.0.0

.0.1.1.1.1.0.0.1

.1.0.0.0.0.0.1.1

.1.0.1.0.0.0.0.1

.1.1.1.1.0.1.1.1

CROSSREFS

Sequence in context: A255885 A130885 A036545 * A156570 A147231 A146815

Adjacent sequences:  A146804 A146805 A146806 * A146808 A146809 A146810

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 04 2008

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 September 29 22:42 EDT 2022. Contains 357092 sequences. (Running on oeis4.)