A265872 Number of 4Xn arrays containing n copies of 0..4-1 with no element plus any antidiagonal neighbor equal to 4-1.

24, 984, 56496, 3965392, 307543008, 25346247472, 2177808505472, 192906735661528, 17489278188423296, 1614969746814390896, 151358790056680049792, 14360889227707270019712, 1376684210617781240317184

Offset: 1

Author

R. H. Hardin, Dec 17 2015

Keywords

• nonn

Comments

Row 4 of A265870.

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..33

Crossrefs

Cf. A265870.