A240004 Number of 5Xn 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 or one plus the sum of the elements diagonally to its northwest, modulo 4.

66, 1117, 10405, 86360, 635873, 4267171, 26152051, 147439332, 775122753, 3821059149, 17769229031, 78356711183, 328981383567, 1319877073978, 5076715532082, 18776009861766, 66950026301586, 230700526217982

Offset: 1

Author

R. H. Hardin, Mar 30 2014

Keywords

• nonn

Comments

Row 5 of A240000

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..210
• R. H. Hardin, Empirical polynomial of degree 44

Formula

Empirical polynomial of degree 44 (see link above)