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!)
A303894 Number of nX6 0..1 arrays with every element unequal to 1, 2, 3 or 4 king-move adjacent elements, with upper left element zero. 1
5, 1145, 3420, 39711, 200144, 1541443, 9758243, 68015993, 462257363, 3129826391, 21703155196, 147148586804, 1017951482338, 6966704502733, 47967810896265, 330173281171357, 2270469305923316, 15652931333829738, 107730579365994677 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A303896.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A303896.

Sequence in context: A220790 A123266 A330391 * A305286 A304899 A316581

Adjacent sequences:  A303891 A303892 A303893 * A303895 A303896 A303897

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 October 1 14:19 EDT 2022. Contains 357149 sequences. (Running on oeis4.)