# Check
N = int(input())
A = [0] + [int(a) for a in input().split()]
s = 0
for i in range(max(N - 1, 1), N + 1)[::-1]:
    A[i] += s
    if A[i] % i:
        print("No")
        break
    s += A[i] // i
else:
    print("Yes")