#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;
using ld = long double;

int main() {
  int n;
  cin >> n;
  vector<int> a(n + 1);
  int ans = 0;
  for (int i = 1; i <= n; i++) cin >> a[i];
  for (int i = 1; i <= n; i++) {
    for (int j = i + 1; j <= n; j++) {
      for (int k = j + 1; k <= n; k++) {
        if (gcd(gcd(a[i], a[j]), a[k]) == 1) ans++;
      }
    }
  }
  cout << ans << endl;
  return 0;
}