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!)
A206216 Number of (n+1)X(n+1) 0..2 arrays with rows and columns of determinants of all 2X2 subblocks lexicographically nondecreasing 0

%I

%S 81,7313,1782191,1827047303,7626209039519,162241662044855141

%N Number of (n+1)X(n+1) 0..2 arrays with rows and columns of determinants of all 2X2 subblocks lexicographically nondecreasing

%C Diagonal of A206223

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Feb 04 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 21 21:55 EST 2022. Contains 350480 sequences. (Running on oeis4.)