A196216 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,0,1,2,4 for x=0,1,2,3,4

16, 544, 5110, 101780, 1937895, 33962624, 608417005, 11132866106, 202301552532, 3661731514195, 66431113288877, 1207694877279204, 21927197259395828, 397962224047643681, 7227485386946689259, 131272592634933828858

Offset

1,1

Comments

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

Column 6 of A196218

Links

R. H. Hardin, Table of n, a(n) for n = 1..151

Example

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

Crossrefs

Sequence in context: A361310 A274136 A187160 * A196683 A131515 A223106

Adjacent sequences: A196213 A196214 A196215 * A196217 A196218 A196219

Keyword

nonn

Author

R. H. Hardin Sep 29 2011

Status

approved