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!)
A301910 Number of 6Xn 0..1 arrays with every element equal to 0, 2 or 3 horizontally or antidiagonally adjacent elements, with upper left element zero. 1
32, 1, 43, 26, 64, 532, 1934, 14860, 86638, 568382, 4029337, 27834481, 195991786, 1379526983, 9716584311, 68484812620, 482477672626, 3399467195980, 23952754983718, 168772425373008, 1189219611175938, 8379671227164002 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A301906.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

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

CROSSREFS

Cf. A301906.

Sequence in context: A134203 A014777 A303323 * A302154 A221193 A103325

Adjacent sequences:  A301907 A301908 A301909 * A301911 A301912 A301913

KEYWORD

nonn

AUTHOR

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 25 19:30 EDT 2020. Contains 334595 sequences. (Running on oeis4.)