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!)
A298630 Number of n X n 0..1 arrays with every element equal to 0, 2, 3, 6 or 7 king-move adjacent elements, with upper left element zero. 0
1, 5, 2, 15, 34, 163, 462, 2134, 7520, 41965, 217707, 1299151, 7616244, 53563038 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Diagonal of A298635.
LINKS
EXAMPLE
Some solutions for n=5
..0..0..0..0..0. .0..0..1..0..0. .0..0..1..0..0. .0..0..0..1..1
..0..1..1..1..0. .0..1..0..1..0. .0..1..0..1..0. .1..0..1..0..1
..1..0..0..0..1. .1..1..0..1..0. .0..1..0..1..0. .1..1..1..0..0
..0..1..1..0..1. .0..1..0..1..0. .0..1..0..0..1. .1..0..1..0..1
..0..0..0..1..1. .0..0..1..0..0. .0..0..1..1..1. .0..0..0..1..1
CROSSREFS
Cf. A298635.
Sequence in context: A283242 A246209 A297979 * A248258 A279150 A213582
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 23 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 February 25 16:57 EST 2024. Contains 370332 sequences. (Running on oeis4.)