Number of (n+1)X4 0..6 arrays with the permanents of all 2X2 subblocks equal and nonzero.

A205041

Number of (n+1)X4 0..6 arrays with the permanents of all 2X2 subblocks equal and nonzero.

Terms

    a(0) =25108a(1) =366378a(2) =2587806a(3) =30072178a(4) =256406852a(5) =2700120030a(6) =24602390018a(7) =249559797434

External references