The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)
A316240 Number of nXn 0..1 arrays with every element unequal to 0, 2, 3, 4, 5 or 8 king-move adjacent elements, with upper left element zero. 0
1, 4, 23, 835, 99193, 32646098, 30308496367, 76005434762214, 524741664012440114 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Diagonal of A316244.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..0..1..1. .0..1..1..1..1. .0..1..0..0..1. .0..1..0..1..1
..1..0..0..1..1. .1..0..0..0..0. .0..1..0..0..1. .1..0..1..0..0
..0..0..0..0..0. .0..0..1..0..0. .1..1..0..0..1. .0..1..1..0..0
..0..1..1..1..0. .1..1..1..1..1. .0..1..1..0..0. .0..1..1..0..0
..1..0..1..0..1. .1..1..1..1..1. .1..0..0..1..1. .0..1..0..1..1
CROSSREFS
Cf. A316244.
Sequence in context: A219464 A107765 A304413 * A305948 A317211 A145514
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jun 27 2018
STATUS
approved

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 May 26 23:01 EDT 2024. Contains 372847 sequences. (Running on oeis4.)