Number of (n+1)X(4+1) 0..4 arrays with 2X2 edge jumps all no more than +1 in one of the clockwise or counterclockwise directions but not both.

A234773

Number of (n+1)X(4+1) 0..4 arrays with 2X2 edge jumps all no more than +1 in one of the clockwise or counterclockwise directions but not both.

Terms

    a(0) =10076a(1) =247394a(2) =4255966a(3) =110820444a(4) =2206072560a(5) =56840484142

External references