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!)
A221120 Number of n X n arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor 0

%I

%S 1,21,4872,16436223,723234356389,429398881440049645

%N Number of n X n arrays of occupancy after each element stays put or moves to some horizontal or antidiagonal neighbor

%C Diagonal of A221125

%e Some solutions for n=3

%e ..1..0..1....1..1..3....2..0..0....1..1..0....0..3..0....1..0..3....2..0..1

%e ..0..2..1....0..1..0....1..4..0....1..1..3....1..0..2....0..2..1....0..4..0

%e ..3..0..1....1..1..1....0..0..2....1..1..0....0..1..2....0..2..0....0..0..2

%K nonn

%O 1,2

%A _R. H. Hardin_ Jan 02 2013

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 22 12:55 EST 2022. Contains 350481 sequences. (Running on oeis4.)