(self)
return self.prev(self.rank).prev().rank + 1
Return the number of possible trees of this Prufer object.

        Examples
        ========

        >>> from sympy.combinatorics.prufer import Prufer
        >>> Prufer([0]*4).size == Prufer([6]*4).size == 1296
        True

        See Also
        ========

        prufer_rank, rank, next, prev
Return the number of possible trees of this Prufer object.
Return the number of possible trees of this Prufer object .
def size(self):
        """Return the number of possible trees of this Prufer object.

        Examples
        ========

        >>> from sympy.combinatorics.prufer import Prufer
        >>> Prufer([0]*4).size == Prufer([6]*4).size == 1296
        True

        See Also
        ========

        prufer_rank, rank, next, prev

        """
        return self.prev(self.rank).prev().rank + 1
def size ( self ) : return self . prev ( self . rank ) . prev ( ) . rank + 1