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A210061 T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with every 2X2 subblock having one, two or four distinct values, and new values 0..3 introduced in row major order 9
9, 51, 51, 323, 646, 323, 2187, 8767, 8767, 2187, 15435, 124097, 249327, 124097, 15435, 111659, 1800963, 7293673, 7293673, 1800963, 111659, 819243, 26510247, 216648913, 438056462, 216648913, 26510247, 819243, 6058155, 393310267 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

.......9.........51...........323.............2187...............15435

......51........646..........8767...........124097.............1800963

.....323.......8767........249327..........7293673...........216648913

....2187.....124097.......7293673........438056462.........26586250017

...15435....1800963.....216648913......26586250017.......3291534980629

..111659...26510247....6488330257....1622061565898.....409244238764475

..819243..393310267..195167694929...99225470062505...50984849090449545

.6058155.5860240451.5884233366145.6077972350575098.6357981795575036349

LINKS

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

EXAMPLE

Some solutions for n=4 k=3

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

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

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

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

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

CROSSREFS

Sequence in context: A188210 A221246 A002462 * A034814 A034816 A140381

Adjacent sequences:  A210058 A210059 A210060 * A210062 A210063 A210064

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Mar 16 2012

STATUS

approved

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Last modified March 26 12:43 EDT 2019. Contains 321497 sequences. (Running on oeis4.)