A202632 Number of nX2 0..3 arrays with adjacent row and column sums unequal.

12, 184, 2428, 32676, 443100, 5967248, 80018540, 1071819720, 14345548208, 191832756088, 2563434424352, 34237692810948, 457102551851688, 6100655850072092, 81398668652158260, 1085815517813680904

Offset: 1

Author

R. H. Hardin Dec 21 2011

Keywords

• nonn

Comments

Column 2 of A202636

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..68