import sys
input = sys.stdin.readline

N = int(input())
A = list(map(int, input().split()))
cnt = 0

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

print('Yes')