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!)
A303895 Number of nX7 0..1 arrays with every element unequal to 1, 2, 3 or 4 king-move adjacent elements, with upper left element zero. 1
8, 4184, 11916, 195279, 992789, 9758243, 71307109, 596704142, 4824517709, 38791293621, 322218371259, 2587399475622, 21498304831181, 174578118724592, 1440073455933753, 11819772450712206, 97045220051756051, 800488399136803935 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A303896.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=5

..0..0..0..1..1..0..1. .0..1..1..1..1..0..1. .0..0..0..1..0..1..0

..0..1..1..1..1..1..0. .0..0..0..0..0..1..0. .0..1..1..0..0..0..1

..1..1..1..1..0..0..1. .0..0..0..0..0..1..1. .1..1..1..1..0..0..0

..1..1..1..0..0..0..1. .0..1..1..0..1..1..0. .1..1..1..1..0..0..1

..1..0..0..1..0..0..1. .1..1..1..1..0..1..0. .0..1..1..0..0..1..1

CROSSREFS

Cf. A303896.

Sequence in context: A203436 A159368 A167065 * A305287 A304900 A316582

Adjacent sequences:  A303892 A303893 A303894 * A303896 A303897 A303898

KEYWORD

nonn

AUTHOR

R. H. Hardin, May 02 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 September 24 23:43 EDT 2022. Contains 356951 sequences. (Running on oeis4.)