#include<bits/stdc++.h>
typedef long long ll;
typedef unsigned long long ull;
using namespace std;
#define pb push_back
int dy[]={0, 0, 1, -1, 1, 1, -1, -1};
int dx[]={1, -1, 0, 0, 1, -1, -1, 1};

#define FOR(i,a,b) for (int i=(a);i<(b);i++)
#define RFOR(i,a,b) for (int i=(b)-1;i>=(a);i--)
#define REP(i,n) for (int i=0;i<(n);i++)
#define RREP(i,n) for (int i=(n)-1;i>=0;i--)
#define mp make_pair
#define fi first
#define sc second
ll n;
ll a[10000];
bool dp[2][(1 << 15)];
int main(){
	cin >> n;
	REP(i,n) {
		cin >> a[i];
	}

	dp[0][0] = true;

	FOR(i,1,n + 1) {
		REP(j,(1 << 15)) {
			dp[1][j] = (dp[0][j] || dp[0][j ^ a[i - 1]]);
		}
		REP(j,(1 << 15)) {
			dp[0][j] = dp[1][j];
		}
	}
	
	ll ans = 0;
	REP(j,(1 << 15)) {
		ans += dp[1][j];
	}
	cout << ans << endl;

	return 0;
}