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!)
A238172 Number of (n+1)X(n+1) 0..2 arrays with the maximum plus the minimum of every 2X2 subblock equal 0

%I

%S 81,5321,2027833,4299264833,45437916131409,2393955748528492505,

%T 623815081258096395684729,805387942935330352515024477169,

%U 5148561164308481771405615002316297841

%N Number of (n+1)X(n+1) 0..2 arrays with the maximum plus the minimum of every 2X2 subblock equal

%C Diagonal of A238180

%e Some solutions for n=2

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Feb 19 2014

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 23 13:57 EST 2022. Contains 350511 sequences. (Running on oeis4.)