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!)
A299346 Number of n X n 0..1 arrays with every element equal to 0, 1, 2, 4, 5 or 8 king-move adjacent elements, with upper left element zero. 0
1, 7, 20, 120, 2067, 25754, 1262771, 72445170, 7208056818, 1634720215564 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Diagonal of A299350.

LINKS

Table of n, a(n) for n=1..10.

EXAMPLE

Some solutions for n=6

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

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

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

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

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

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

CROSSREFS

Cf. A299350.

Sequence in context: A299944 A265657 A298214 * A009370 A299091 A299873

Adjacent sequences:  A299343 A299344 A299345 * A299347 A299348 A299349

KEYWORD

nonn

AUTHOR

R. H. Hardin, Feb 07 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 2 20:53 EDT 2022. Contains 357230 sequences. (Running on oeis4.)