A196902 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,3,1,0,2 for x=0,1,2,3,4

1, 41, 1176, 20191, 447668, 9855864, 216042764, 4683808777, 102440829474, 2232503865348, 48692888533485, 1062046643313404, 23164137991212547, 505192448140138820, 11018595483560578437, 240317309840328016805

Offset

1,2

Comments

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

Column 6 of A196904

Links

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

Example

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

Crossrefs

Sequence in context: A358713 A130639 A196744 * A297349 A014937 A275225

Adjacent sequences: A196899 A196900 A196901 * A196903 A196904 A196905

Keyword

nonn

Author

R. H. Hardin Oct 07 2011

Status

approved