A266185 Number of 4Xn arrays containing n copies of 0..4-1 with no element plus any diagonal or antidiagonal neighbor equal to 4-1.

24, 384, 7768, 226296, 7089448, 253282792, 9451853336, 371640077992, 15004890740488, 621421685721976, 26174574774860264, 1119055728709553688, 48396501869679377480, 2113991818229740211832, 93107795487773857584184

Offset: 1

Author

R. H. Hardin, Dec 23 2015

Keywords

• nonn

Comments

Row 4 of A266183.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..16

Crossrefs

Cf. A266183.