Number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock singular.

A184764

Number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock singular.

Terms

    a(0) =64a(1) =8272a(2) =1967440a(3) =4975179472

External references