The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A207448 Number of n X n 0..1 arrays avoiding 0 0 0 and 0 0 1 horizontally and 0 0 1 and 1 0 1 vertically 1

%I

%S 2,16,90,760,5200,46956,370734,3599104,31807710,329885620,3198732768,

%T 35206521816,369188811082,4287997640080,48104913781890,

%U 586813738039904,6984278125524784,89124296743065348,1118012637781250310

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

%C Diagonal of A207453

%H R, H. Hardin, <a href="/A207448/b207448.txt">Table of n, a(n) for n = 1..39</a>

%e Some solutions for n=5

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 17 2012

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.

Last modified February 1 03:45 EST 2023. Contains 359981 sequences. (Running on oeis4.)