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!)
A286210 Number of n X 2 0..1 arrays with the number of 1's king-move adjacent to some 0 two less than the number of 0's adjacent to some 1. 1
0, 4, 17, 62, 238, 912, 3468, 13224, 50655, 194672, 750165, 2897898, 11219322, 43520672, 169113746, 658172740, 2565143148, 10010037116, 39107620002, 152948221004, 598750691827, 2346021879720, 9199672561659, 36102743330922 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 2 of A286216.

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

CROSSREFS

Cf. A286216.

Sequence in context: A006762 A297917 A202752 * A339286 A252815 A191272

Adjacent sequences: A286207 A286208 A286209 * A286211 A286212 A286213

KEYWORD

nonn

AUTHOR

R. H. Hardin, May 04 2017

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 January 28 09:01 EST 2023. Contains 359851 sequences. (Running on oeis4.)