A209089 Number of nX5 0..3 arrays avoiding the pattern z z+1 z horizontally and z z-1 z vertically.

883, 779689, 544875737, 376488811859, 260988770962672, 180986678798076799, 125502610636793867958, 87027185693521847800021, 60347245504579188652812254, 41846591231660443334369169644

Offset

1,1

Comments

Column 5 of A209092

Links

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

Example

Some solutions for n=4
..1..1..3..2..0....1..3..2..2..0....2..3..3..0..0....1..0..3..3..3
..3..3..0..1..3....2..2..1..1..0....2..1..3..2..0....2..1..3..2..2
..2..1..1..3..1....1..1..3..3..1....1..0..2..0..1....2..2..3..0..2
..1..0..2..0..3....0..0..3..0..0....3..2..0..0..0....3..1..1..2..2

Crossrefs

Sequence in context: A129469 A206794 A206964 * A207131 A253507 A282156

Adjacent sequences: A209086 A209087 A209088 * A209090 A209091 A209092

Keyword

nonn

Author

R. H. Hardin, Mar 05 2012

Status

approved