A240186 Number of n X n 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it or three plus the sum of the elements diagonally to its northwest, modulo 4.

1, 5, 37, 771, 91879, 28061567, 43398047802

Offset: 1

Author

R. H. Hardin, Apr 02 2014

Keywords

• nonn

Comments

Diagonal of A240192.

Examples

			Some solutions for n=4
..2..0..0..0....2..0..0..0....2..0..0..0....2..0..0..0....2..0..0..0
..1..2..0..2....1..3..2..0....1..0..0..0....1..0..2..2....1..3..2..0
..2..1..0..2....2..1..1..3....1..3..3..0....1..2..2..2....2..1..2..0
..1..2..0..2....1..0..3..2....2..1..2..2....2..1..0..0....1..2..2..0
		

Crossrefs

Cf. A240192.