Number of tilings of an n X n square using dominoes and straight (3 X 1) trominoes.
A219874
Number of tilings of an n X n square using dominoes and straight (3 X 1) trominoes.
Terms
- a(0) =1a(1) =0a(2) =2a(3) =14a(4) =184a(5) =9612a(6) =1143834a(7) =354859954a(8) =295743829064
External references
- oeis: A219874