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!)
A205997 Number of (n+1)X8 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock equal to two, and every 2X2 determinant nonzero 1
54738, 2436706, 111764603, 5195655486, 242338696294, 11329617750556, 529835251171222, 24790817051128828, 1159975071698596954, 54282105915446216444, 2540175779339071267853, 118872371634378189759334 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A205998
LINKS
EXAMPLE
Some solutions for n=4
..0..2..0..2..2..1..2..1....2..0..1..1..0..1..0..1....0..1..2..0..1..0..1..0
..1..0..2..1..0..2..0..2....0..2..0..2..1..2..1..0....2..2..0..2..2..1..2..1
..2..1..0..2..1..0..1..0....2..0..1..0..2..0..2..1....1..0..2..1..0..2..1..2
..1..0..1..0..2..1..2..1....0..1..2..1..0..1..0..2....2..1..0..2..1..0..2..1
..0..2..2..1..0..2..1..0....1..2..1..2..1..0..1..0....0..2..1..0..2..1..0..2
CROSSREFS
Sequence in context: A250857 A083616 A235104 * A091536 A237732 A251164
KEYWORD
nonn
AUTHOR
R. H. Hardin Feb 02 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 April 16 05:35 EDT 2024. Contains 371697 sequences. (Running on oeis4.)