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!)
A279493 Number of nX7 0..1 arrays with no element equal to a strict majority of its horizontal, vertical and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards. 1
15, 801, 46095, 2241332, 98128162, 4065077852, 162346342126, 6294925767121, 238434528280477, 8863487201716422, 324449796535829989, 11723580027925010371, 418958469982919690628, 14829876008361939503733 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A279494.
LINKS
EXAMPLE
Some solutions for n=3
..0..1..1..0..0..0..0. .0..1..0..1..1..1..0. .0..0..0..0..1..0..1
..1..0..0..1..1..0..0. .0..1..1..0..1..0..0. .1..1..1..1..0..0..1
..0..1..1..0..1..1..1. .1..0..1..1..0..1..1. .0..0..1..0..0..1..0
CROSSREFS
Cf. A279494.
Sequence in context: A317798 A280310 A211104 * A183821 A301312 A230181
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 13 2016
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 25 22:40 EDT 2024. Contains 372806 sequences. (Running on oeis4.)