A207219 Number of nX6 0..2 arrays avoiding the pattern z z+1 z in any row or column.

529, 279841, 97935886, 33403462497, 11574609426324, 4019515127529418, 1395037573042216457, 484100965758678998675, 167995026283315198886440, 58298967703100379585703272, 20231341894128588893547935849

Offset: 1

Author

R. H. Hardin Feb 16 2012

Keywords

• nonn

Comments

Column 6 of A207221

Examples

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

Links

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