A196682 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,1,2,3 for x=0,1,2,3,4.

9, 189, 1235, 15395, 188078, 2169685, 25142624, 291420839, 3417608122, 40048090008, 466852430720, 5449232674091, 63760228123954, 745737298355388, 8713522565183852, 101832009256003145, 1190660595164563844

Offset: 1

Author

R. H. Hardin Oct 05 2011

Keywords

• nonn

Comments

Every 0 is next to 0 4'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 3's

Column 5 of A196685

Examples

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

Links

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