A232381 Number of 6Xn 0..3 arrays with every 0 next to a 1, every 1 next to a 2 and every 2 next to a 3 horizontally, diagonally or antidiagonally, and no adjacent values equal.

1, 3794, 292122, 14297980, 789866870, 47301712998, 2824295623804, 167360596895808, 9942352809180050, 591329072696504102, 35169449829022038068, 2091545018566304198936, 124389459762131184280364

Offset: 1

Author

R. H. Hardin, Nov 23 2013

Keywords

• nonn

Comments

Row 6 of A232376

Examples

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

Links

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