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!)
A297747 Number of nX6 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 1, 3 or 4 neighboring 1s. 1
9, 237, 2223, 28540, 462187, 6379211, 92963365, 1407868835, 20923328285, 313246086576, 4720505204979, 70997646336366, 1068901950248778, 16110948199973896, 242794944116520103, 3659521442004638378 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 6 of A297749.
LINKS
EXAMPLE
Some solutions for n=4
..1..1..0..0..0..0. .1..1..1..0..0..0. .1..1..0..0..0..0. .0..1..0..0..0..1
..0..0..0..1..0..0. .0..0..1..0..0..0. .1..0..1..0..1..1. .0..0..1..1..1..0
..0..1..0..0..1..0. .0..1..1..1..0..1. .1..0..0..0..0..0. .1..0..1..1..0..0
..0..0..1..0..0..0. .1..0..1..1..1..1. .0..1..0..0..0..0. .1..1..0..1..0..0
CROSSREFS
Cf. A297749.
Sequence in context: A302914 A157569 A279492 * A211052 A085799 A278858
KEYWORD
nonn
AUTHOR
R. H. Hardin, Jan 05 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 May 24 01:38 EDT 2024. Contains 372768 sequences. (Running on oeis4.)