A207201 T(n,k)=Number of nXk 0..2 arrays avoiding the pattern z-1 z-1 z in any row or column

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

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