A196296 Number of nX4 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,0,1,4,2 for x=0,1,2,3,4

5, 61, 290, 2161, 14231, 97892, 686759, 4731033, 32374680, 222897413, 1539916243, 10636418118, 73345982967, 505430824497, 3485517910342, 24049220604349, 165913015451421, 1144300512605372, 7891941802463913, 54435005065152899

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 4's, every 4 is next to 4 2's

Column 4 of A196300

Links

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

Example

Some solutions for n=5
..1..1..0..0....0..0..2..1....2..1..0..1....0..1..1..0....2..1..0..0
..0..2..1..1....0..2..1..0....1..1..1..2....0..1..2..0....1..1..0..0
..0..0..1..1....1..1..1..1....0..0..1..2....1..1..0..0....0..1..2..0
..1..2..1..0....2..0..0..1....0..0..1..1....2..1..0..0....2..1..1..0
..1..0..2..1....1..0..0..1....1..2..1..0....0..1..2..1....1..0..1..1

Crossrefs

Sequence in context: A242194 A046976 A092838 * A196214 A196681 A281713

Adjacent sequences: A196293 A196294 A196295 * A196297 A196298 A196299

Keyword

nonn

Author

R. H. Hardin Sep 30 2011

Status

approved