Number of n X 4 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, vertically or antidiagonally, and top left element zero.

A232944

Number of n X 4 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, vertically or antidiagonally, and top left element zero.

Terms

    a(0) =27a(1) =577a(2) =13707a(3) =328989a(4) =7915555a(5) =190528543a(6) =4586348177a(7) =110402289283

External references