Number of tilings of a 3 X n rectangle using monominoes and trominoes of any shape.
A270063
Number of tilings of a 3 X n rectangle using monominoes and trominoes of any shape.
Terms
- a(0) =1a(1) =2a(2) =14a(3) =93a(4) =590a(5) =3710a(6) =23509a(7) =148796a(8) =940916a(9) =5952243a(10) =37655502a(11) =238204978a(12) =1506870209a(13) =9532433288a(14) =60301864000a(15) =381467462217
External references
- oeis: A270063