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A204289 T(n,k)=Number of (n+2)X(k+2) 0..3 arrays with every 3X3 subblock having three equal elements in a row horizontally, vertically, diagonally or antidiagonally exactly two different ways, and new values 0..3 introduced in row major order 5
738, 9747, 9747, 142107, 190347, 142107, 1429921, 4225471, 4225471, 1429921, 17355817, 69321821, 155571239, 69321821, 17355817, 221925179, 1350148902, 3531083953, 3531083953, 1350148902, 221925179, 2543715910, 27980729421 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.........738.........9747........142107.......1429921......17355817

........9747.......190347.......4225471......69321821....1350148902

......142107......4225471.....155571239....3531083953..111738717361

.....1429921.....69321821....3531083953..103672509054.5112434552746

....17355817...1350148902..111738717361.5112434552746

...221925179..27980729421.3916847292491

..2543715910.524910976410

.30734237265

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..40

EXAMPLE

Some solutions for n=3 k=3

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

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

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

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

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

CROSSREFS

Sequence in context: A320714 A251647 A337738 * A204285 A224564 A077723

Adjacent sequences:  A204286 A204287 A204288 * A204290 A204291 A204292

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Jan 13 2012

STATUS

approved

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Last modified January 25 15:08 EST 2021. Contains 340416 sequences. (Running on oeis4.)