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!)
A284226 Number of 5Xn 0..1 arrays with the number of 1s horizontally or antidiagonally adjacent to some 0 equal to the number of 0s adjacent to some 1, with top left element zero. 1
16, 212, 3224, 91260, 2417194, 68272108, 1970768869, 58014691963, 1729160628627, 52018078923533, 1575778726620949, 47999422848604301, 1468666472458499856, 45105520159013915517, 1389642013052702705342, 42928654746563598820849 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 5 of A284222.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..80

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Cf. A284222.

Sequence in context: A222447 A059385 A009440 * A282395 A273588 A125473

Adjacent sequences:  A284223 A284224 A284225 * A284227 A284228 A284229

KEYWORD

nonn

AUTHOR

R. H. Hardin, Mar 23 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 February 25 20:04 EST 2020. Contains 332258 sequences. (Running on oeis4.)