Number of free (rotations and reflections count as same shape) polyominoids (shapes made of faces of cubes) with n squares.
A075679
Number of free (rotations and reflections count as same shape) polyominoids (shapes made of faces of cubes) with n squares.
Terms
- a(0) =1a(1) =2a(2) =9a(3) =54a(4) =448a(5) =4650a(6) =53611a(7) =655033a(8) =8259635a(9) =106371085a(10) =1391032357a(11) =18412269694
External references
- oeis: A075679