The OEIS mourns the passing of Jim Simons and is grateful to the Simons Foundation for its support of research in many branches of science, including the OEIS.
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!)
A283856 Number of n X 7 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors. 1
128, 13225, 901397, 72394838, 5724272337, 449942735521, 35481195059121, 2796411775700471, 220385420596755894, 17369615762718616468, 1368959249299809499467, 107892485834872661402986 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A283857.
LINKS
EXAMPLE
Some solutions for n=2
..0..1..1..0..0..0..0. .1..1..1..0..0..0..1. .1..1..0..1..1..1..0
..0..1..1..1..0..0..0. .0..0..1..0..1..0..0. .0..1..1..0..1..0..0
CROSSREFS
Cf. A283857.
Sequence in context: A001661 A264095 A239190 * A283414 A184760 A228985
KEYWORD
nonn
AUTHOR
R. H. Hardin, Mar 17 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 May 15 05:14 EDT 2024. Contains 372536 sequences. (Running on oeis4.)