Number of horizontal, vertical, diagonal and antidiagonal neighbor colorings of the odd squares of an nX3 array with new integer colors introduced in row major order.

A215740

Number of horizontal, vertical, diagonal and antidiagonal neighbor colorings of the odd squares of an nX3 array with new integer colors introduced in row major order.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =8a(4) =22a(5) =364a(6) =1474a(7) =40612a(8) =211784a(9) =8520924a(10) =53617792a(11) =2916070032a(12) =21317896720

External references