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

dp = [[[0,0] for _ in range(100*N+1)] for _ in range(N+1)]
dp[0][0][0] = 1
res = 0
for i in range(N):
    ndp = [[[0,0] for _ in range(100*N+1)] for _ in range(N+1)]
    for j in range(i+2):
        for k in range(100*N+1):
            ndp[j][k][0] += dp[j][k][0]
            ndp[j][k][1] += dp[j][k][1]
            if j-1>=0 and k-A[i]>=0:
                if j==1:
                    ndp[j][k][0] += dp[j-1][k-A[i]][0]
                    ndp[j][k][1] += dp[j-1][k-A[i]][1]
                else:
                    if k%(j-1)==0 and A[i]<=k//(j-1):
                        ndp[j][k][1] += dp[j-1][k-A[i]][0]+dp[j-1][k-A[i]][1]
                    else:
                        ndp[j][k][0] += dp[j-1][k-A[i]][0]+dp[j-1][k-A[i]][1]
            if i==N-1:
                res += ndp[j][k][1]
    dp = ndp
print(res)