Efficient direct initialization of a std::vector

I have a struct, say

struct A {
  A(int n) : n(n) {}
  int n;
};

and I want to initialize a std::vector with some elements. I can do this by using an initialization list, or by emplacing the new elements:

// 3 ctors, 3 copy ctors, 3 dtors                                           
std::vector<A> v1{1, 2, 3};

// 3 ctors                                                                  
std::vector<A> v2;
v2.reserve(3);
v2.emplace_back(4);
v2.emplace_back(5);
v2.emplace_back(6);

As the comments show, the first version calls 3 constructors, 3 copy constructors, and 3 destructors. The version with emplace only uses 3 constructors.

Question: Can I do a direct initialization without the extra cost?

(Here's a longer version of the A struct that shows what's happening.)