A240405 Number of nX6 0..3 arrays with no element equal to one plus the sum of elements to its left or three plus the sum of elements above it or zero plus the sum of the elements diagonally to its northwest, modulo 4.

10, 182, 5566, 98837, 3366314, 80283637, 1935005419, 62076655091, 1450984782112, 37906848226235, 1081004222746562, 25964332544993478, 717853781860370092, 19141131451457166560, 479535244327439253477, 13234379418730869182392

Offset: 1

Author

R. H. Hardin, Apr 04 2014

Keywords

• nonn

Comments

Column 6 of A240406

Examples

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

Links

• R. H. Hardin, Table of n, a(n) for n = 1..18