Number of (n+1) X 3 0..3 arrays with every 2 X 3 or 3 X 2 subblock having an equal number of clockwise and counterclockwise edge increases.

A206746

Number of (n+1) X 3 0..3 arrays with every 2 X 3 or 3 X 2 subblock having an equal number of clockwise and counterclockwise edge increases.

Terms

    a(0) =1888a(1) =36384a(2) =793152a(3) =18037344a(4) =415429504a(5) =9604042208a(6) =222273709440

External references