Number of n X 5 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.

A232945

Number of n X 5 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) =81a(1) =3363a(2) =161621a(3) =7915555a(4) =389997789a(5) =19245039957a(6) =950054488141

External references