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!)
A146863 Number of n X n binary arrays with all ones connected only in a 1101-1111 pattern in any orientation. 0
1, 1, 1, 25, 193, 1061, 19265, 384413, 13738057, 820631045, 59715152817, 7053435949925, 1320192686294957, 358386777091843317 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..14.

EXAMPLE

Maximal 8 X 8 example

.1.1.0.0.0.0.1.1

.1.0.0.0.0.0.1.1

.1.1.0.0.0.0.0.1

.1.1.0.0.0.0.1.1

.0.0.1.1.1.1.0.0

.0.0.1.0.1.1.0.0

.1.1.0.1.0.0.0.0

.1.1.1.1.0.0.0.0

CROSSREFS

Sequence in context: A209851 A330126 A243209 * A101775 A017222 A271535

Adjacent sequences:  A146860 A146861 A146862 * A146864 A146865 A146866

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 October 6 23:36 EDT 2022. Contains 357270 sequences. (Running on oeis4.)