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A209047 T(n,k)=Number of nXk 0..3 arrays with no element equal the average of immediate neighbors vertically above and horizontally left of it 8
4, 12, 12, 36, 124, 36, 108, 1300, 1300, 108, 324, 13644, 47700, 13644, 324, 972, 143212, 1752148, 1752148, 143212, 972, 2916, 1503212, 64369764, 225262148, 64369764, 1503212, 2916, 8748, 15778340, 2364812680, 28964458546, 28964458546 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

....4........12............36...............108....................324

...12.......124..........1300.............13644.................143212

...36......1300.........47700...........1752148...............64369764

..108.....13644.......1752148.........225262148............28964458546

..324....143212......64369764.......28964458546.........13034933066892

..972...1503212....2364812680.....3724317998214.......5866193355938718

.2916..15778340...86878417604...478881915072688....2640002203816927226

.8748.165616044.3191736905988.61575811582924326.1188097914449381928076

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..220

EXAMPLE

Some solutions for n=4 k=3

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

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

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

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

CROSSREFS

Column 1 is A003946

Sequence in context: A272923 A161411 A261695 * A209019 A202636 A239194

Adjacent sequences:  A209044 A209045 A209046 * A209048 A209049 A209050

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Mar 04 2012

STATUS

approved

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Last modified February 16 09:04 EST 2019. Contains 320159 sequences. (Running on oeis4.)