Number of full spectrum rook's walks on a (2 X n) board.

A096121

Number of full spectrum rook's walks on a (2 X n) board.

Terms

    a(0) =2a(1) =8a(2) =60a(3) =816a(4) =17520a(5) =550080a(6) =23839200a(7) =1365799680a(8) =100053999360

External references