A240255 - OEIS

%I #3 Apr 03 2014 07:19:21

%S 164,0,368,8564,96752,2043488,26986182,807290260,13612747250

%N Number of 6Xn 0..3 arrays with no element equal to the sum of elements to its left or the sum of the elements above it or the sum of the elements diagonally to its northwest or the sum of the elements antidiagonally to its northeast, modulo 4

%C Row 6 of A240250

%e Some solutions for n=3

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Apr 03 2014