6!2!2!\frac{6!}{2!2!}2!2!6!
6!2!2!2!\frac{6!}{2!2!2!}2!2!2!6!
8!2!2!2!\frac{8!}{2!2!2!}2!2!2!8!
8!2!2!\frac{8!}{2!2!}2!2!8!
