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!)
A318546 Number of n X n 0..1 arrays with every element unequal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 0

%I

%S 0,3,5,64,842,14760,437825,21556643,1516492860,183780175203

%N Number of n X n 0..1 arrays with every element unequal to 1, 2, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero.

%C Diagonal of A318552.

%e Some solutions for n=5:

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

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

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

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

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

%Y Cf. A318552.

%K nonn,more

%O 1,2

%A _R. H. Hardin_, Aug 28 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 June 25 16:08 EDT 2022. Contains 354851 sequences. (Running on oeis4.)