A265457 Number of nX7 0..n+7-2 arrays with each element differing from its horizontal and vertical neighbors by one or two.

9358, 5710302, 4148236142, 3073046007824, 2268041942592142, 1653688201339124766, 1191337567990711362900, 848423104474986244064166, 598271406157938091938371830, 418189967455232632823299204488

Offset: 1

Author

R. H. Hardin, Dec 09 2015

Keywords

• nonn

Comments

Column 7 of A265458.

Examples

			Some solutions for n=1
..0..2..3..1..2..3..1....3..5..3..4..3..2..4....3..4..2..4..2..1..0
		

Links

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

Crossrefs

Cf. A265458.