A197277 Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,1,1 for x=0,1,2,3,4.

9, 67, 317, 2731, 16890, 114205, 886737, 6017949, 40918349, 290053910, 2074566978, 14599100959, 101671464178, 714232555115, 5052846176923, 35608078988237, 249861298059545, 1755724243450685, 12370064599008231, 87120870560445460

Offset: 1

Author

R. H. Hardin Oct 12 2011

Keywords

• nonn

Comments

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

Column 5 of A197280

Examples

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

Links

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