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

A229636

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

Terms

    a(0) =120a(1) =5392a(2) =136778a(3) =3723370a(4) =98015235a(5) =2495874984a(6) =61836040854

External references