mod = 1000000007
eps = 10**-9


def main():
    import sys
    input = sys.stdin.readline

    N = int(input())
    A = list(map(int, input().split()))

    A.sort()
    dp = [[0] * (N * 100 + 1) for _ in range(1)]
    dp[0][0] = 1
    ans = 0
    for i, a in enumerate(A):
        dp_new = [[0] * (N * 100 + 1) for _ in range(i + 2)]
        for j in range(i + 1):
            for s in range(N * 100 + 1):
                s_new = s + a
                dp_new[j][s] += dp[j][s]
                if s_new <= N * 100:
                    dp_new[j + 1][s_new] += dp[j][s]
                    if j:
                        if s_new % j == 0:
                            if a <= s_new // j:
                                ans += dp_new[j+1][s_new]
        dp = dp_new
    print(ans)


if __name__ == '__main__':
    main()