login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A281721 Number of 7Xn 0..1 arrays with no element unequal to a strict majority of its horizontal, diagonal and antidiagonal neighbors and with new values introduced in order 0 sequentially upwards. 1
64, 22, 30, 1625, 10738, 142023, 1721319, 18779855, 230037168, 2667856089, 31098469537, 368912116468, 4299998362349, 50615320723942, 594638970383925, 6971797426746210, 81973100282054094, 962121842116973906 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 7 of A281715.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

..0..0..1..1. .0..0..0..0. .0..1..0..1. .0..0..0..0. .0..0..0..1

..0..0..1..1. .1..1..1..0. .1..0..1..0. .0..0..0..0. .0..0..1..1

..0..0..1..1. .1..1..0..1. .0..1..0..1. .0..0..0..0. .0..0..1..1

..0..0..1..1. .0..0..1..0. .0..0..1..0. .1..1..0..0. .0..0..0..1

..0..0..1..1. .0..0..0..1. .0..0..0..1. .1..1..1..1. .0..0..1..1

..0..1..1..1. .0..0..1..1. .0..0..1..1. .1..1..1..1. .0..1..1..1

..0..0..1..1. .0..0..1..1. .0..1..1..1. .1..1..1..1. .1..0..0..0

CROSSREFS

Cf. A281715.

Sequence in context: A303629 A302520 A302685 * A303319 A275469 A178542

Adjacent sequences:  A281718 A281719 A281720 * A281722 A281723 A281724

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 28 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 16 17:33 EDT 2021. Contains 348042 sequences. (Running on oeis4.)