A198011 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,3,0,1,2 for x=0,1,2,3,4

8, 186, 3061, 46044, 788961, 12594359, 207269787, 3406403182, 55679383631, 912505114439, 14950187482378, 245017673395469, 4014980543150206, 65780847796005297, 1077866923477316420, 17661503795394665754

Offset

1,1

Comments

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

Column 6 of A198013

Links

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

Example

Some solutions containing all values 0 to 4 for n=4
..0..2..0..1..0..0....0..0..0..1..3..1....0..0..0..2..0..0....0..0..0..0..0..2
..2..4..2..3..1..0....0..2..2..0..1..0....1..2..0..2..0..0....1..0..0..2..2..0
..0..2..0..1..2..0....0..2..4..2..2..0....3..1..2..4..2..2....3..1..2..4..2..0
..0..2..0..0..0..0....0..0..2..0..0..2....1..0..0..2..0..0....1..0..0..2..0..0

Crossrefs

Sequence in context: A092546 A227584 A197894 * A197748 A198153 A197233

Adjacent sequences: A198008 A198009 A198010 * A198012 A198013 A198014

Keyword

nonn

Author

R. H. Hardin Oct 20 2011

Status

approved