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!)
A207218 Number of nX5 0..2 arrays avoiding the pattern z z+1 z in any row or column 1

%I

%S 191,36481,4916282,647820815,86510224720,11574609426324,

%T 1547869995556777,206971107381598775,27675336707209804335,

%U 3700661206901289737538,494840604949963261796095,66168472883795299046655248

%N Number of nX5 0..2 arrays avoiding the pattern z z+1 z in any row or column

%C Column 5 of A207221

%H R. H. Hardin, <a href="/A207218/b207218.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=4

%e ..2..0..1..2..2....2..1..0..2..2....0..1..1..2..2....0..0..2..1..2

%e ..1..1..1..1..2....0..0..2..1..0....2..0..1..2..0....0..1..2..0..2

%e ..1..2..2..2..0....1..2..0..2..0....1..1..2..2..0....2..1..2..2..0

%e ..1..0..2..2..1....2..2..2..0..2....1..1..2..2..2....1..2..2..2..1

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 16 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.

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 2 21:10 EST 2023. Contains 360024 sequences. (Running on oeis4.)