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!)
A283955 Number of 6Xn 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors, with the exception of exactly one element. 1
0, 0, 71486, 4510608, 242330064, 13010689912, 667015216686, 32960788748780, 1600697201681958, 76611709398415200, 3619757534989162198, 169346455636754049580, 7859113340842715699470, 362219493645285494837272 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

Row 6 of A283950.

LINKS

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

EXAMPLE

Some solutions for n=3

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

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

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

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

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

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

CROSSREFS

Cf. A283950.

Sequence in context: A215994 A101250 A031865 * A114661 A119397 A025300

Adjacent sequences:  A283952 A283953 A283954 * A283956 A283957 A283958

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 18 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 January 24 04:35 EST 2020. Contains 331183 sequences. (Running on oeis4.)