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!)
A300466 Number of n X n 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 0

%I

%S 1,8,160,8608,1231578,462538206,456303004550,1184061531948168,

%T 8081950028633306006,145086737722751262521230,

%U 6849888315993282295524030922

%N Number of n X n 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Diagonal of A300472.

%e Some solutions for n=5

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

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

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

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

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

%Y Cf. A300472.

%K nonn

%O 1,2

%A _R. H. Hardin_, Mar 06 2018

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 October 4 08:55 EDT 2022. Contains 357239 sequences. (Running on oeis4.)