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!)
A205767 Number of (n+1)X8 0..3 arrays with every 2X2 subblock having nonzero determinant and having the same number of clockwise edge increases as its horizontal and vertical neighbors 1
26672819, 23044169753, 20808476912916, 18792440902201504, 16933907492912073872, 15245666610881157061902, 13716254602126712440880420, 12336975902231287097446944284, 11094395430478243340473622599662 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A205768

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..21

EXAMPLE

Some solutions for 5X5

..3..1..2..3..2..2..0..1....3..2..3..0..3..3..0..1....1..1..1..0..2..3..3..0

..1..2..1..1..0..3..1..0....1..3..0..2..1..0..2..0....1..2..1..2..2..2..3..3

..0..1..3..2..1..0..2..1....2..0..2..1..3..1..3..2....2..2..2..2..3..2..2..3

..1..2..0..3..2..1..3..2....2..1..0..2..0..2..1..3....1..2..0..2..2..2..3..3

..3..0..2..1..3..2..0..3....3..2..1..3..1..3..2..0....2..2..2..2..1..2..2..3

CROSSREFS

Sequence in context: A120410 A246225 A151622 * A086129 A121109 A046518

Adjacent sequences:  A205764 A205765 A205766 * A205768 A205769 A205770

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 30 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 | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified February 25 11:39 EST 2020. Contains 332233 sequences. (Running on oeis4.)