Number of (n+1)X7 0..3 arrays with every 2X3 or 3X2 subblock having exactly two clockwise edge increases.

A206061

Number of (n+1)X7 0..3 arrays with every 2X3 or 3X2 subblock having exactly two clockwise edge increases.

Terms

    a(0) =13136860a(1) =96831504a(2) =910785080a(3) =12877680064a(4) =265284773176

External references