Number of (n+1)X(n+1) 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero.

A204724

Number of (n+1)X(n+1) 0..4 arrays with the permanents of all 2X2 subblocks equal and nonzero.

Terms

    a(0) =544a(1) =12744a(2) =264998a(3) =45026614a(4) =3884003062

External references