A233730 Number of (n+1)X(5+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6 and no adjacent elements equal.

7976, 115972, 1851404, 32240288, 578163016, 10577526052, 195088215888, 3616933627344, 67204709367712, 1250516988640176, 23282612726211812, 433669103881115132, 8078852328328338404, 150521113304511790216

Offset: 1

Author

R. H. Hardin, Dec 15 2013

Keywords

• nonn

Comments

Column 5 of A233733

Examples

			Some solutions for n=2
..3..0..2..3..1..0....3..2..3..2..0..2....1..0..2..3..1..3....2..3..1..0..1..3
..2..1..0..2..0..2....1..0..1..3..2..3....0..2..3..1..0..1....0..1..2..3..2..1
..1..3..1..3..1..3....0..2..0..1..0..2....1..0..1..0..2..3....2..3..1..0..1..3
		

Links

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