using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Text;
using System.Text.RegularExpressions;
using System.Linq;
using System.IO;

class Program
{
    static private Magatro M = new Magatro();
    static private void Main(string[]args)
    {
        M.Scan();
        M.Solve();
    }
}

public class Scanner
{
    private string[] S;
    private int Index;
    private char Separator;

    public Scanner(char separator = ' ')
    {
        Index = 0;
        Separator = separator;
    }

    private string[] Line()
    {
        return Console.ReadLine().Split(Separator);
    }

    public string Next()
    {
        string result;
        if (S == null || Index >= S.Length)
        {
            S = Line();
            Index = 0;
        }
        result = S[Index];
        Index++;
        return result;
    }
    public int NextInt()
    {
        return int.Parse(Next());
    }
    public double NextDouble()
    {
        return double.Parse(Next());
    }
    public long NextLong()
    {
        return long.Parse(Next());
    }
}

public class Magatro
{
    private int N;
    private int[] A;
    private const int Max = 1<<15;
    public void Scan()
    {
        Scanner sc = new Scanner();
        N = sc.NextInt();
        A = new int[N];
        for(int i = 0; i < N; i++)
        {
            A[i] = sc.NextInt();
        }
    }
    public void Solve()
    {
        bool[] dp = new bool[Max + 1];
        dp[0] = true;
        for(int i = 0; i < N; i++)
        {
            List<int> next = new List<int>();

            for(int j = 0; j <= Max; j++)
            {
                if (dp[j])
                {
                    next.Add(j ^ A[i]);
                }
            }
            for(int j = 0; j < next.Count; j++)
            {
                dp[next[j]] = true;
            }
        }
        Console.WriteLine(dp.Count(ss =>ss));
    }
}