Shared code

#include <bits/stdc++.h>

using namespace std;

#define in(a)                                                                  \
  for (auto &x : a)                                                            \
    cin >> x;
#define out(a)                                                                 \
  for (auto x : a)                                                             \
    cout << x << " ";
#define pb push_back
#define int long long
typedef vector<int> vi;
typedef pair<int, int> pii;

void solve() {
  int n;
  cin >> n;
  int a = 1, b = 1;
  int mod = 1e9 + 7;
  while (--n) {
    int na = (2 * a + b) % mod;
    int nb = (4 * b + a) % mod;
    a = na;
    b = nb;
    // cout << (a + b) % mod << '\n';
  }
  cout << (a + b) % mod << '\n';
}

int32_t main() {
  ios_base::sync_with_stdio(false);
  cin.tie(0);
  cout.tie(0);

  int t = 1;
  cin >> t;

  while (t--) {
    solve();
  }

  return 0;
}