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!)
A146856 Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1101-0111-0100 pattern in any orientation. 0

%I #4 Mar 31 2012 12:35:14

%S 1,1,1,1,1,1,17,27,587,1133,10901,28287,585741,1701229,131274347,

%T 487724577,70353958073,323657950757,55264471537249,310091943069627,

%U 90510403672783457,614791345688856355

%N Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 1101-0111-0100 pattern in any orientation.

%e Maximal 8 X 8 example

%e .1.1.0.0.0.0.1.1

%e .0.1.0.0.0.0.1.0

%e .1.1.1.0.0.1.1.1

%e .1.0.0.0.0.0.0.1

%e .0.0.1.0.0.1.0.0

%e .1.1.1.0.0.1.1.1

%e .0.1.0.0.0.0.1.0

%e .0.1.1.0.0.1.1.0

%K nonn

%O 1,7

%A _R. H. Hardin_, Nov 04 2008

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 April 24 15:18 EDT 2024. Contains 371960 sequences. (Running on oeis4.)