package com.company;

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
	// write your code here
        Scanner  sc = new Scanner(System.in);
        int n = sc.nextInt();
        long alpha[], beta[], tmp;
        alpha = new long[n];
        beta = new long[n];
        String flag;
        if (n < 3){
            System.out.print(0);
        }else{
            alpha[0] = 4;
            alpha[1] = 2;
            flag = "alpha";
            for (int i = 3; i < n; i++){
                if (flag == "alpha"){
                    for (int j = 0; j < Math.min(i-1,n/2); j++){
                        tmp = alpha[j];
                        beta[j] = 2 * tmp;
                    }
                    for (int j = 0; j < Math.min(i-1,n/2); j++){
                        tmp = alpha[j];
                        if (j > 0){beta[j-1] += tmp * j;}
                        beta[j+1] += tmp * (i - 1 - j);
                    }
                    flag = "beta";
                }else{
                    for (int j = 0; j < Math.min(i-1,n/2); j++){
                        tmp = beta[j];
                        alpha[j] = 2 * tmp;
                    }
                    for (int j = 0; j < Math.min(i-1,n/2); j++){
                        tmp = beta[j];
                        if (j > 0){alpha[j-1] += tmp * j;}
                        alpha[j+1] += tmp * (i - 1 - j);
                    }
                    flag = "alpha";
                }
            }
            if (flag == "alpha") {
                System.out.println(alpha[0] % 1000000007);
            }else{
                System.out.println(beta[0] % 1000000007);
            }
        }

    }
}