A240281 Number of n X 4 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4.

4, 76, 570, 3457, 33183, 218658, 1851080, 15760838, 110599613, 945852472, 7409236730, 55988117579, 467427537182, 3584402597875, 28182066532013, 228525081390122, 1759513489969607, 14047642078491638, 111675119083235178

Offset: 1

Author

R. H. Hardin, Apr 03 2014

Keywords

• nonn

Comments

Column 4 of A240284.

Examples

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

Links

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

Crossrefs

Cf. A240284.