Number of (n+1)X6 0..3 arrays with every 2X2 subblock having zero permanent.

A206252

Number of (n+1)X6 0..3 arrays with every 2X2 subblock having zero permanent.

Terms

    a(0) =47089a(1) =26512201a(2) =944701696a(3) =226637884225

External references