Number of (n+1)X4 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock the same.

A205904

Number of (n+1)X4 0..2 arrays with the number of clockwise edge increases in every 2X2 subblock the same.

Terms

    a(0) =1764a(1) =24045a(2) =327501a(3) =4541781a(4) =63696738a(5) =900968550a(6) =12813949461a(7) =182896937223

External references