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

 

Logo

Thanks to everyone who made a donation during our annual appeal!
To see the list of donors, or make a donation, see the OEIS Foundation home page.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A302080 Number of nX7 0..1 arrays with every element equal to 0, 1, 3 or 4 horizontally or antidiagonally adjacent elements, with upper left element zero. 1
21, 154, 1166, 10526, 94846, 893236, 8320747, 78493707, 737846612, 6957491738, 65543473064, 617903565224, 5823935501973, 54900790436419, 517515255716184, 4878411825620594, 45986764069646418, 433498222189624372 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A302081.

LINKS

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

R. H. Hardin, Empirical recurrence of order 52

FORMULA

Empirical recurrence of order 52 (see link above)

EXAMPLE

Some solutions for n=5

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

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

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

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

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

CROSSREFS

Cf. A302081.

Sequence in context: A184368 A078396 A301883 * A180374 A108675 A296832

Adjacent sequences:  A302077 A302078 A302079 * A302081 A302082 A302083

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 31 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 January 18 16:27 EST 2020. Contains 331011 sequences. (Running on oeis4.)