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!)
A205756 Number of 5X(n+1) 0..2 arrays with every 2X2 subblock having the same number of equal edges as its horizontal neighbors and a different number from its vertical neighbors, and new values 0..2 introduced in row major order 1
2268, 12384, 63838, 383290, 2244622, 14131118, 88143754, 572187838, 3709029086, 24613160072, 163670433374, 1104155427184, 7473775678826, 51060113489722, 350078262846120, 2415378206667070, 16720104940755442, 116264115349570420 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 4 of A205753

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A206212 A154673 A130179 * A205586 A125253 A308792

Adjacent sequences:  A205753 A205754 A205755 * A205757 A205758 A205759

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 January 19 08:18 EST 2022. Contains 350464 sequences. (Running on oeis4.)