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!)
A205352 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with no 2X2 subblock having the same number of equal edges as its horizontal or vertical neighbors, and new values 0..3 introduced in row major order. 7
15, 110, 110, 1024, 1750, 1024, 9894, 30904, 30904, 9894, 96288, 544616, 1080457, 544616, 96288, 937926, 9559986, 36759026, 36759026, 9559986, 937926, 9140400, 168343322, 1257218433, 2423004172, 1257218433, 168343322, 9140400, 89074638 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.......15.........110..........1024...........9894..........96288

......110........1750.........30904.........544616........9559986

.....1024.......30904.......1080457.......36759026.....1257218433

.....9894......544616......36759026.....2423004172...161391622662

....96288.....9559986....1257218433...161391622662.21200252524407

...937926...168343322...43053361050.10806656599274

..9140400..2962323362.1474675468656

.89074638.52122083398

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..49

EXAMPLE

Some solutions for n=4 k=3

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

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

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

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

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

CROSSREFS

Sequence in context: A232117 A232197 A347500 * A055504 A060931 A107585

Adjacent sequences: A205349 A205350 A205351 * A205353 A205354 A205355

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Jan 26 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 February 1 16:51 EST 2023. Contains 359993 sequences. (Running on oeis4.)