def solve(N, A):
    s = 0
    for i in range(N, 0, -1):
        if (s + A[i - 1]) % i:
            return False
        s += (s + A[i - 1]) // i
    return True


N = int(input())
A = tuple(map(int, input().split()))
print("Yes" if solve(N, A) else "No")