A207200 Number of nX7 0..2 arrays avoiding the pattern z-1 z-1 z in any row or column

1440, 2073600, 1858463962, 1610194874799, 1385457146717885, 1191041491968754066, 1025697542018363494742, 883559110269161782685731, 761280699256334770795399551, 655947587369032185600391472910

Offset

1,1

Comments

Column 7 of A207201

Links

R. H. Hardin, Table of n, a(n) for n = 1..36

Example

Some solutions for n=4
..0..2..2..1..1..0..2....1..1..0..1..1..1..1....0..2..0..2..2..2..0
..1..2..0..1..1..0..1....1..0..0..0..2..2..1....2..2..0..1..2..0..2
..1..0..1..0..0..2..1....0..2..2..0..2..2..1....1..0..2..1..2..1..2
..0..0..2..2..2..1..0....0..2..2..2..1..2..0....2..1..2..0..2..2..2

Crossrefs

Sequence in context: A207207 A206733 A207357 * A119422 A166609 A362863

Adjacent sequences: A207197 A207198 A207199 * A207201 A207202 A207203

Keyword

nonn

Author

R. H. Hardin Feb 15 2012

Status

approved