from itertools import accumulate
N = int(input())
*A, = map(int, input().split())
C = [0]*N

for i in range(N-1, -1, -1):
    if (A[i] + C[i]) % (i+1) != 0:
        print('No')
        exit()
    C[i-1] = C[i] + (A[i] + C[i]) // (i+1)
print('Yes')