Number of (n+1) X 6 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock equal to the number of counterclockwise edge increases.

A209514

Number of (n+1) X 6 0..2 arrays with the number of clockwise edge increases in every 2 X 2 subblock equal to the number of counterclockwise edge increases.

Terms

    a(0) =93921a(1) =13141335a(2) =1876947141a(3) =269845393359

External references