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

A229643

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

Terms

    a(0) =0a(1) =15795a(2) =277996a(3) =6049298a(4) =133784624a(5) =2902520386a(6) =61836040854

External references