import java.io.*; import java.util.*; public class Main { public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); int n = sc.nextInt(); int[] stones = new int[n + 1]; for (int i = 1; i <= n; i++) { stones[i] = sc.nextInt(); } long add = 0; boolean enable = true; for (int i = n; i >= 1 && enable; i--) { enable = ((stones[i] + add) % i == 0); add += (stones[i] + add) / i; } if (enable) { System.out.println("Yes"); } else { System.out.println("No"); } } } class Scanner { BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); StringTokenizer st = new StringTokenizer(""); public Scanner() throws Exception { } public int nextInt() throws Exception { return Integer.parseInt(next()); } public long nextLong() throws Exception { return Long.parseLong(next()); } public double nextDouble() throws Exception { return Double.parseDouble(next()); } public String next() throws Exception { if (!st.hasMoreTokens()) { st = new StringTokenizer(br.readLine()); } return st.nextToken(); } }