Number of tilings of a 6 X n rectangle using monominoes and trominoes of any shape.

A270066

Number of tilings of a 6 X n rectangle using monominoes and trominoes of any shape.

Terms

    a(0) =1a(1) =6a(2) =438a(3) =23509a(4) =1238818a(5) =65410388a(6) =3473827027a(7) =184140417890

External references