In each of the following questions, find the next term to fill the blank space.
1, 2, 3, 5, 6, 7, 9, 10, 11, 13, …….. ? ………..
In each of the following questions, find the next term to fill the blank space.
$$ \frac{1}{81}, \frac{1}{54}, \frac{1}{36} ,\frac{1}{24} , $$ ……. ? ……….