A197165 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,2,1,4,0 for x=0,1,2,3,4

6, 290, 7106, 183864, 5021137, 135820428, 3683084153, 99818807528, 2707589789345, 73439922027377, 1991359749836248, 54002873765907282, 1464524123912748354, 39716029408785484453, 1077051645006852678606

Offset

1,1

Comments

Every 0 is next to 0 3's, every 1 is next to 1 2's, every 2 is next to 2 1's, every 3 is next to 3 4's, every 4 is next to 4 0's

Column 6 of A197167

Links

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

Example

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

Crossrefs

Sequence in context: A203422 A042119 A196980 * A264706 A066718 A065947

Adjacent sequences: A197162 A197163 A197164 * A197166 A197167 A197168

Keyword

nonn

Author

R. H. Hardin Oct 10 2011

Status

approved