Number of tilings of a 7 X 3n rectangle with right trominoes.

A351324

Number of tilings of a 7 X 3n rectangle with right trominoes.

Terms

    a(0) =1a(1) =0a(2) =520a(3) =22656a(4) =1795360a(5) =115363072a(6) =7876120608a(7) =527256809600

External references