why this is not correct?


#include<iostream>
using namespace std;
int main() {
  int n;
  cin>>n;
  if(n==1){
    cout<<2;
    return 0;
  }
  for(int i = 1; i < n; i++)
    cout<<(1<<i)<<endl;
  cout<<3*(1<<n-2);
  return 0;

}