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A207201 T(n,k)=Number of nXk 0..2 arrays avoiding the pattern z-1 z-1 z in any row or column 7
3, 9, 9, 25, 81, 25, 69, 625, 625, 69, 190, 4761, 12534, 4761, 190, 523, 36100, 247002, 247002, 36100, 523, 1440, 273529, 4841210, 12539372, 4841210, 273529, 1440, 3965, 2073600, 94815963, 632716336, 632716336, 94815963, 2073600, 3965, 10918 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Table starts

....3........9..........25.............69................190

....9.......81.........625...........4761..............36100

...25......625.......12534.........247002............4841210

...69.....4761......247002.......12539372..........632716336

..190....36100.....4841210......632716336........82169395789

..523...273529....94815963....31901664357.....10662765804288

.1440..2073600..1858463962..1610194874799...1385457146717885

.3965.15721225.36432515728.81287871720373.180058205739184404

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..127

EXAMPLE

Some solutions for n=4 k=3

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

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

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

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

CROSSREFS

Column 1 is A206727

Column 2 is A206728

Sequence in context: A207208 A206734 A207358 * A206863 A206957 A207989

Adjacent sequences:  A207198 A207199 A207200 * A207202 A207203 A207204

KEYWORD

nonn,tabl

AUTHOR

R. H. Hardin Feb 15 2012

STATUS

approved

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Last modified May 17 12:43 EDT 2021. Contains 343971 sequences. (Running on oeis4.)