A196299 Number of nX7 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.

25, 1597, 21344, 686759, 19123802, 513362648, 14372583192, 402254701097, 11172616795189, 309961960884860, 8636593218691567, 240597854301944078, 6696378931249054755, 186420836116243663032, 5190804183327066922164

Offset: 1

Author

R. H. Hardin Sep 30 2011

Keywords

• nonn

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 7 of A196300

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..64