#include <bits/stdc++.h>
using namespace std;

//--------------------------------------------
#define FOR(i,a,b) for(int i=(a);i<(b);i++)
#define RFOR(i,a,b) for(int i=(b)-1;i>=(a);i--)
#define REP(i,n) FOR(i,0,n)
#define RREP(i,n) RFOR(i,0,n)
#define LL long long
#define INF INT_MAX/3

//--------------------------------------------
const double EPS = 1e-14;
const double PI  = acos(-1.0);

//--------------------------------------------

int n;
LL arr[10000000];

void cal(int n) {
  arr[0] = 1;
  FOR (i, 1, n + 1) {
    arr[i] = ((((LL)(2 * i - 1) * (LL)(2 * i - 2) / 2 + (LL)(2 * i - 1)) % 1000000007) * arr[i - 1]) % 1000000007;
  }
}

int main(){
  scanf("%d",&n);

  cal(n);
  printf("%lld\n",arr[n]);
}