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!)
A207723 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 1 and 1 0 1 vertically 1

%I

%S 2,16,78,441,8575,277729,4799749,93547584,8978585264,1701743731081,

%T 92421758243781,5198831216732241,3314060538084914409,

%U 4426079717506620317769,675694617961142291654422

%N Number of n X n 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 1 1 and 1 0 1 vertically

%C Diagonal of A207729

%H R. H. Hardin, <a href="/A207723/b207723.txt">Table of n, a(n) for n = 1..20</a>

%e Some solutions for n=4

%e ..0..1..1..0....0..0..1..1....1..0..1..1....1..1..1..1....1..1..0..0

%e ..1..1..1..0....0..1..1..1....1..1..0..1....1..1..1..1....1..1..0..1

%e ..0..1..1..1....1..0..1..1....1..0..0..1....1..1..1..1....1..1..0..0

%e ..0..1..1..0....0..0..1..1....0..0..1..1....0..1..1..1....0..1..1..0

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 19 2012

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified January 27 15:45 EST 2022. Contains 350607 sequences. (Running on oeis4.)