Number of (n+1)X(n+1) 0..3 arrays with the permanents of 2X2 subblocks nondecreasing rightwards and downwards.

A205173

Number of (n+1)X(n+1) 0..3 arrays with the permanents of 2X2 subblocks nondecreasing rightwards and downwards.

Terms

    a(0) =256a(1) =61320a(2) =73775908a(3) =249458849992

External references