Number of (n+1) X 4 0..2 arrays with every 2 X 3 or 3 X 2 subblock having an equal number of clockwise and counterclockwise edge increases.

A206409

Number of (n+1) X 4 0..2 arrays with every 2 X 3 or 3 X 2 subblock having an equal number of clockwise and counterclockwise edge increases.

Terms

    a(0) =2457a(1) =69585a(2) =2073999a(3) =62351943a(4) =1876995285a(5) =56515649709

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