Number of tilings of a 2 X 4 X n box using bricks of shape 3 X 1 X 1 and 2 X 1 X 1.

A233507

Number of tilings of a 2 X 4 X n box using bricks of shape 3 X 1 X 1 and 2 X 1 X 1.

Terms

    a(0) =1a(1) =7a(2) =201a(3) =9787a(4) =379688a(5) =16512483a(6) =726964790a(7) =31549810845

External references