Number of (n+1)X6 0..3 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards.

A205024

Number of (n+1)X6 0..3 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards.

Terms

    a(0) =456043a(1) =56088455a(2) =5296848762a(3) =674941613200

External references