Number of tilings of a 9 X n rectangle using monominoes and trominoes of any shape.
A270069
Number of tilings of a 9 X n rectangle using monominoes and trominoes of any shape.
Terms
- a(0) =1a(1) =19a(2) =13413a(3) =5952243a(4) =2626057921
External references
- oeis: A270069