A230330 Number of n X n 0..2 arrays x(i,j) with each element horizontally, vertically or antidiagonally next to at least one element with value (x(i,j)+1) mod 3, and upper left element zero

0, 6, 534, 438284, 2788320240, 137077642883940, 52211092034409972862, 154024647784870223714406548, 3519277849947878097413487571658476