#include <bits/stdc++.h>
using namespace std;
long long int n, i, j, t, ans, arr[3009], crr[3009][3009];
int main() {
  scanf("%lld", &t);
  while (t--) {
    scanf("%lld", &n);
    ans = 0;
    for (i = 1; i <= n; i++) scanf("%lld", &arr[i]);
    for (i = n; i >= 1; i--) {
      for (j = i - 1; j >= 1; j--) {
        ans += crr[arr[i]][arr[j]];
      }
      for (j = i + 1; j <= n; j++) {
        crr[arr[j]][arr[i]]++;
      }
    }
    printf("%lld\n", ans);
    for (i = 1; i <= n; i++) {
      for (j = 1; j <= n; j++) crr[i][j] = 0;
    }
  }
  return 0;
}
