Number of defective 3-colorings of an n X 7 0..2 array connected horizontally and vertically with exactly two mistakes, and colors introduced in row-major 0..2 order.

A229605

Number of defective 3-colorings of an n X 7 0..2 array connected horizontally and vertically with exactly two mistakes, and colors introduced in row-major 0..2 order.

Terms

    a(0) =120a(1) =15795a(2) =792929a(3) =31848813a(4) =1153135492a(5) =39229935270

External references