using System;
using System.Collections.Generic;
using System.Collections;
using System.Collections.Specialized;
using System.Linq;
using System.Text;
using System.IO;
using System.Reflection;
using static System.Math;
using System.Numerics;
//using nint=System.Int32;
static class Program{
	const int mod=(int)1e9+7;
	const double eps=1e-11;
	static void Main(){
		Sc sc=new Sc();
		var n=sc.I;
		var a=sc.Ia;
		Bit2 bit=new Bit2(n+1);
		var ans="Yes";
		for(int i = 1;i<=n;i++) {bit.Ud(i,i,a[i-1]);}
		for(int i = n;i>0;i--) {
			var p=bit.Get(i,i);
			if(p==0){continue;}
			if(p%i!=0){
				ans="No";
				break;
			}
			bit.Ud(1,i,p/i);
		}
		Console.WriteLine("{0}",ans);
	}
}
public class Bit2{
	private int n;
	private Bit bit1,bit2;
	public Bit2(int n){
		this.n=n;
		bit1=new Bit(n);
		bit2=new Bit(n);
	}
	public void Ud(int l,int r,long p){
		bit1.Ud(l,-p*(l-1));
		bit2.Ud(l,p);
		bit1.Ud(r+1,p*r);
		bit2.Ud(r+1,-p);
	}
	public long Get(int l,int r){return bit2.Get(r)*r+bit1.Get(r)-bit2.Get(l-1)*(l-1)-bit1.Get(l-1);}
	public class Bit{
		private int n;
		private long[] bit;
		public Bit(int n){
			this.n=n;
			bit=new long[n+1];
		}
		public void Ud(int a,long p){a++;while(a<=n){bit[a]+=p;a+=a&-a;}}
		public long Get(int n){
			n++;
			long a=0;
			while(n>0){a+=bit[n];n-=n&-n;}
			return a;
		}
		public void Clear(){bit=new long[n+1];}
	}
}
public class Sc{
	public int I{get{return int.Parse(Console.ReadLine());}}
	public long L{get{return long.Parse(Console.ReadLine());}}
	public double D{get{return double.Parse(Console.ReadLine());}}
	public string S{get{return Console.ReadLine();}}
	public int[] Ia{get{return Array.ConvertAll(Console.ReadLine().Split(),int.Parse);}}
	public long[] La{get{return Array.ConvertAll(Console.ReadLine().Split(),long.Parse);}}
	public double[] Da{get{return Array.ConvertAll(Console.ReadLine().Split(),double.Parse);}}
	public string[] Sa{get{return Console.ReadLine().Split();}}
	public object[] Oa{get{return Console.ReadLine().Split();}}
	public int[] Ia2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),int.Parse);}}
	public int[] Ia3(string a,string b){return Array.ConvertAll((a+Console.ReadLine()+b).Split(),int.Parse);}
	public int[] Ia3(int a){return Array.ConvertAll((Console.ReadLine()+" "+a.ToString()).Split(),int.Parse);}
	public long[] La2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),long.Parse);}}
	public long[] La3(string a,string b){return Array.ConvertAll((a+Console.ReadLine()+b).Split(),long.Parse);}
	public long[] La3(int a){return Array.ConvertAll((Console.ReadLine()+" "+a.ToString()).Split(),long.Parse);}
	public double[] Da2{get{return Array.ConvertAll(("0 "+Console.ReadLine()+" 0").Split(),double.Parse);}}
	public double[] Da3(string a,string b){return Array.ConvertAll((a+Console.ReadLine()+b).Split(),double.Parse);}
	public T[] Arr<T>(int n,Func<T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f();}return a;}
	public T[] Arr<T>(int n,Func<int,T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(i);}return a;}
	public T[] Arr<T>(int n,Func<string[],T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(Console.ReadLine().Split());}return a;}
	public T[] Arr<T>(int n,Func<int,string[],T> f){var a=new T[n];for(int i=0;i<n;i++){a[i]=f(i,Console.ReadLine().Split());}return a;}
}