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!)
A206939 Number of 6Xn 0..1 arrays avoiding 0 0 0 horizontally and 0 1 1 vertically 1
33, 1089, 9055, 170409, 2967939, 40316253, 659747611, 10405676997, 157403120837, 2479765407533, 38584141407985, 596657906957549, 9306402002435837, 144634043653494289, 2246314891033601445, 34949152336387277125 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 6 of A206936

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

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

CROSSREFS

Sequence in context: A170752 A132469 A200441 * A188604 A188611 A188848

Adjacent sequences:  A206936 A206937 A206938 * A206940 A206941 A206942

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 13 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 July 6 06:40 EDT 2022. Contains 355108 sequences. (Running on oeis4.)