Number of (n+1)X(n+1) 0..5 arrays with the permanents of all 2X2 subblocks equal and nonzero.

A204755

Number of (n+1)X(n+1) 0..5 arrays with the permanents of all 2X2 subblocks equal and nonzero.

Terms

    a(0) =1175a(1) =38553a(2) =833401a(3) =306477369a(4) =27008204541

External references