login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A207910 Number of 5Xn 0..1 arrays avoiding 0 0 0 and 0 1 0 horizontally and 0 0 0 and 0 1 1 vertically 1
13, 169, 611, 2209, 13865, 87025, 417425, 2002225, 10896915, 59305401, 303611925, 1554330625, 8194919925, 43206195321, 224558681991, 1167115069561, 6108464797743, 31970576988009, 166753685864931, 869761961442529 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 5 of A207908

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A207266 A262270 A207782 * A208422 A207787 A207021

Adjacent sequences:  A207907 A207908 A207909 * A207911 A207912 A207913

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 21 2012

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 12 07:45 EDT 2022. Contains 356067 sequences. (Running on oeis4.)