using System.Collections.Generic;
using System.Linq;
using System;

public static class combi
{
    public static IEnumerable<IEnumerable<T>> Comb<T>(this IEnumerable<T> items, int r)
    {
        if (r == 0)
        {
            yield return Enumerable.Empty<T>();
        }
        else
        {
            var i = 1;
            foreach (var x in items)
            {
                var xs = items.Skip(i);
                foreach (var c in Comb(xs, r - 1))
                    yield return c.Before(x);
                i++;
            }
        }
    }
    public static IEnumerable<T> Before<T>(this IEnumerable<T> items, T first)
    {
        yield return first;
        foreach (var i in items)
            yield return i;
    }
}

public class Hello
{
    static void Main()
    {
        var n = int.Parse(Console.ReadLine().Trim());
        var a = new int[n];
        for (int i = 0; i < n; i++) a[i] = int.Parse(Console.ReadLine().Trim());
        getAns(n, a);
    }
    static void getAns(int n, int[] a)
    {
        var count = 0;
        var b = Enumerable.Range(0, n).Comb(3);
        foreach (var x in b)
        {
            var c = x.ToArray();
            var k0 = Gcd(a[c[1]], a[c[2]]);
            if (k0 == 1) { count++;  continue; }
            var k1 = Gcd(a[c[0]], k0);
            if (k1 == 1) count++;
        }
        Console.WriteLine(count);
    }
    static int Gcd(int a, int b)
    {
        if (a < b) return Gcd(b, a);
        while (b != 0)
        {
            var w = a % b;
            a = b;
            b = w;
        }
        return a;
    }
}