A197204 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,2,1,0,3 for x=0,1,2,3,4

4, 154, 3649, 82408, 1890344, 44049565, 1024514869, 23694062554, 549372026526, 12743513094468, 295451821724325, 6849613829231115, 158818786337504605, 3682398510410799861, 85378510136323889541, 1979565632837619218162

Offset

1,1

Comments

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

Column 5 of A197207

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

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

Crossrefs

Sequence in context: A279325 A158104 A244448 * A197802 A229313 A300530

Adjacent sequences: A197201 A197202 A197203 * A197205 A197206 A197207

Keyword

nonn

Author

R. H. Hardin Oct 11 2011

Status

approved