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!)
A189623 Number of 8Xn binary arrays without the pattern 0 1 0 diagonally, antidiagonally or horizontally 1
256, 65536, 2227333, 32031600, 783072552, 41236726541, 1785011303305, 52939317116118, 1481899787122910, 50278308247706514, 1860556623858510413, 63647690214269161385, 2037957253448016880897, 66466260524616890792281 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 8 of A189617

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..129

EXAMPLE

Some solutions for 8X3

..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0

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

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

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

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

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

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

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

CROSSREFS

Sequence in context: A017572 A189270 A016748 * A189695 A188746 A188998

Adjacent sequences:  A189620 A189621 A189622 * A189624 A189625 A189626

KEYWORD

nonn

AUTHOR

R. H. Hardin Apr 24 2011

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 June 24 02:56 EDT 2021. Contains 345415 sequences. (Running on oeis4.)