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

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A300603 Number of nX6 0..1 arrays with every element equal to 0, 2, 3 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. 1
1, 42, 89, 394, 2394, 16629, 110249, 729292, 4931949, 33688331, 227576010, 1542214484, 10470390642, 71030350954, 481810503725, 3269006885450, 22179699829029, 150481131390602, 1020964668122599, 6926992861786559 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 6 of A300605.

LINKS

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

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A300605.

Sequence in context: A325994 A019283 A331365 * A301328 A067296 A044180

Adjacent sequences:  A300600 A300601 A300602 * A300604 A300605 A300606

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 09 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 December 7 07:57 EST 2021. Contains 349571 sequences. (Running on oeis4.)