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A210309 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays containing all values 0..3 with every 2X2 subblock having one or three distinct values, and new values 0..3 introduced in row major order 9
0, 29, 29, 414, 1091, 414, 4553, 27957, 27957, 4553, 45890, 655743, 1575467, 655743, 45890, 446093, 14976529, 85724987, 85724987, 14976529, 446093, 4266246, 339125187, 4628067519, 11061291451, 4628067519, 339125187, 4266246, 40490097 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Table starts

........0...........29.............414................4553

.......29.........1091...........27957..............655743

......414........27957.........1575467............85724987

.....4553.......655743........85724987.........11061291451

....45890.....14976529......4628067519.......1424160340819

...446093....339125187....249417760123.....183304255111499

..4266246...7657326365..13436313660615...23591932615876019

.40490097.172736626311.723757498910275.3036344556314579403

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..144

EXAMPLE

Some solutions for n=4 k=3

..0..1..1..1....0..0..0..0....0..0..1..0....0..0..1..0....0..1..1..0

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

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

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

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

CROSSREFS

Sequence in context: A146040 A146017 A210267 * A165850 A129287 A007642

Adjacent sequences:  A210306 A210307 A210308 * A210310 A210311 A210312

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Mar 19 2012

STATUS

approved

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Last modified April 6 15:20 EDT 2020. Contains 333276 sequences. (Running on oeis4.)