A183507 - OEIS

%I #4 Mar 31 2012 12:35:52

%S 252,59292,14369472,3486784401,847298204784,205891132094649

%N Number of nX5 0..3 arrays with no element equal to the sum mod 4 of its horizontal and vertical neighbors

%C Column 5 of A183508

%e Some solutions for 3X5

%e ..2..2..2..2..1....2..0..0..1..2....2..0..0..2..0....0..0..0..1..2

%e ..2..0..1..0..0....0..0..0..2..0....0..0..1..1..0....2..2..2..1..2

%e ..2..1..0..3..2....0..3..0..0..3....0..1..3..0..2....2..1..0..3..0

%K nonn

%O 1,1

%A _R. H. Hardin_ Jan 05 2011