#include <iostream>
#include <fstream>
#include <bitset>
using namespace std;
ifstream in("fractii.in");
ofstream out("fractii.out");
bitset<1000001>e;

int main()
{
    int x, n, i, j, k, nr;
    cin>>x;
    for (k=1; k<=x; k++)
    {
        cin>>n;
        nr=0;
        for (i=2; i<=n; i++)
        e[i]=i;
        for (i=2; i<=n; i++)
        if(e[i]==1)
        for(j=i; j<=n; j+=i)
        e[j]=e[j]/i*(i-1);
        for (i=2; i<=n; i++)
        nr=nr+e[i]*2;
        cout<<nr-1<<'\n';
    }
    return 0;
}