A239410 Number of 6Xn 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of the elements above it, modulo 4.

156, 20818, 2590704, 326882784, 40566958960, 5072216819342, 630657074443394, 78666433617260802, 9791612259389470778, 1220385596630190836830, 151973853622892194440357, 18935435888110044394225594

Offset: 1

Author

R. H. Hardin, Mar 17 2014

Keywords

• nonn

Comments

Row 6 of A239405

Examples

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

Links

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