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!)
A302883 Number of n X n 0..1 arrays with every element equal to 0, 2, 3, 4 or 5 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. 0
1, 2, 37, 238, 20937, 3452246, 2899297652, 7977498513759, 75895729469717417 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
Diagonal of A302889.
LINKS
EXAMPLE
Some solutions for n=5
..0..1..1..0..1. .0..0..0..0..0. .0..0..1..1..1. .0..0..0..1..1
..1..1..0..0..0. .0..0..0..0..0. .1..0..0..1..1. .1..0..0..1..1
..0..0..1..0..0. .0..0..1..1..0. .1..0..0..0..0. .1..0..1..0..1
..0..0..0..1..1. .1..1..1..0..0. .1..0..1..0..0. .0..0..0..1..1
..1..0..0..1..1. .0..1..1..0..0. .0..0..0..0..0. .0..0..0..1..1
CROSSREFS
Cf. A302889.
Sequence in context: A139119 A244757 A298476 * A053788 A078976 A200911
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 15 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 March 19 07:38 EDT 2024. Contains 370958 sequences. (Running on oeis4.)