A205889 Number of (n+1)X4 0..2 arrays with 2X2 subblock determinants differing from horizontal neighbors and permanents differing from vertical neighbors

4020, 79644, 1476942, 26010268, 464115072, 8325468740, 148827007430, 2659178147340, 47551879509036, 850274306582468, 15201511461415374, 271786406380926280, 4859382432160259832, 86881923302659644976

Offset

1,1

Comments

Column 3 of A205894

Links

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

Example

Some solutions for n=3
..1..1..0..1....2..2..0..1....0..0..1..1....0..0..2..0....2..1..0..0
..2..1..2..0....2..1..2..1....2..2..1..2....0..2..2..2....0..2..1..2
..1..2..1..2....2..1..0..2....1..1..0..2....1..1..2..2....1..2..1..0
..0..0..1..0....1..2..1..1....1..2..2..2....2..1..2..0....1..2..2..1

Crossrefs

Sequence in context: A252349 A282128 A099229 * A236521 A235658 A186530

Adjacent sequences: A205886 A205887 A205888 * A205890 A205891 A205892

Keyword

nonn

Author

R. H. Hardin Feb 01 2012

Status

approved