Number of (n+1)X6 0..2 arrays with the number of clockwise edge increases in 2X2 subblocks nondecreasing rightwards and downwards.

A206509

Number of (n+1)X6 0..2 arrays with the number of clockwise edge increases in 2X2 subblocks nondecreasing rightwards and downwards.

Terms

    a(0) =111495a(1) =10505604a(2) =769739571a(3) =47830788954

External references