Number of n X 3 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally or antidiagonally, top left element zero, and 1 appearing before 2 in row major order.

A233077

Number of n X 3 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally or antidiagonally, top left element zero, and 1 appearing before 2 in row major order.

Terms

    a(0) =5a(1) =95a(2) =1985a(3) =41675a(4) =875165a(5) =18378455a(6) =385947545a(7) =8104898435a(8) =170202867125

External references