n = int(input())
a = list(map(int, input().split()))

total = 0
ok = True

for i in range(n-1, -1, -1):
	if (a[i] + total) % (i+1) == 0:
		total += (a[i] + total - 1) // (i+1)
	else:
		ok = False
		break

print("Yes" if ok else "No")