N = int(input())
A = list(map(int, input().split()))
A.sort()
dp = [[0]*(N*100+1) for _ in range(N+1)]
dp[0][0] = 1
ans = 0

for i in range(N):
    ndp = [[0]*(N*100+1) for _ in range(N+1)]
    
    for j in range(N):
        for k in range(N*100):
            ndp[j][k] += dp[j][k]

            if k+A[i]<=N*100:
                ndp[j+1][k+A[i]] += dp[j][k]
                
                if j>=1 and (k+A[i])%j==0 and A[i]<=(k+A[i])//j:
                    ans += ndp[j+1][k+A[i]]
    
    dp = ndp

print(ans)