A207013 Number of nX6 0..2 arrays avoiding the patterns z z+1 z or z z-1 z in any row or column

425, 180625, 34303001, 7825530345, 1728683700481, 381916401448593, 84153991018875649, 18557751920452764329, 4094258595906425557169, 903334042632634594899417, 199290157484520408850878833

Offset

1,1

Comments

Column 6 of A207015

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

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

Crossrefs

Sequence in context: A203343 A207233 A207226 * A048922 A305267 A045094

Adjacent sequences: A207010 A207011 A207012 * A207014 A207015 A207016

Keyword

nonn

Author

R. H. Hardin Feb 14 2012

Status

approved