n = int(input())
a = list(map(int,input().split()))
s = 0
for i in range(n-1,-1,-1):
    if a[i] == 0 and s == 0:
        continue
    if (a[i]+s)%(i+1) == 0:
        s += (a[i]+s)//(i+1)
    else:
        print("No")
        exit()
print("Yes")