A206956 Number of nX7 0..2 arrays avoiding the pattern z z+1 z in any row, column or nw-to-se diagonal.

1465, 2146225, 1455935650, 950821989599, 656572043220119, 455424052435622710, 314368117565737962789, 216873306373656734739325, 149694579632520898257449851, 103334879849813837848577474301

Offset: 1

Author

R. H. Hardin Feb 13 2012

Keywords

• nonn

Comments

Column 7 of A206957

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..35