A206954 Number of nX5 0..2 arrays avoiding the pattern z z+1 z in any row, column or nw-to-se diagonal.

191, 36481, 4107593, 449797912, 50967712088, 5791955969105, 656572043220119, 74406813170700252, 8434111346519119622, 956049555928840322174, 108370550020434256409997, 12284018358115973071831348

Offset: 1

Author

R. H. Hardin Feb 13 2012

Keywords

• nonn

Comments

Column 5 of A206957

Examples

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

Links

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