N = int(input())

MOD = 10**9 + 7
DP = [[[[0]*2 for _ in range(2)] for _ in range(i)] for i in range(N+1)]
DP[1][0][0][0] = 1
if N >= 2:
    DP[2][0][0][0] = 2

for i in range(2, N):
    for j in range(i):
        for k in [1, 0]:
            for s in [1, 0]:
                DP[i][j][k][s] %= MOD
                if DP[i][j][k][s] == 0:
                    continue

                DP[i+1][j-1][0][k] += (j-k-s) * DP[i][j][k][s]
                if k:
                    DP[i+1][j-1][0][0] += DP[i][j][k][s]
                if s:
                    DP[i+1][j][1][k] += DP[i][j][k][s]
                DP[i+1][j][0][k] += (i-1-j+s) * DP[i][j][k][s]
                DP[i+1][j+1][1][k] += (2-s) * DP[i][j][k][s]

print(DP[N][0][0][0] % MOD)