A205756 Number of 5X(n+1) 0..2 arrays with every 2X2 subblock having the same number of equal edges as its horizontal neighbors and a different number from its vertical neighbors, and new values 0..2 introduced in row major order.

2268, 12384, 63838, 383290, 2244622, 14131118, 88143754, 572187838, 3709029086, 24613160072, 163670433374, 1104155427184, 7473775678826, 51060113489722, 350078262846120, 2415378206667070, 16720104940755442, 116264115349570420

Offset: 1

Author

R. H. Hardin Jan 30 2012

Keywords

• nonn

Comments

Row 4 of A205753

Examples

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

Links

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