#include <bits/stdc++.h>
using namespace std;

#define DUMP(x) cerr << #x << "=" << x << endl
#define DUMP2(x, y) cerr<<"("<<#x<<", "<<#y<<") = ("<<x<<", "<<y<<")"<< endl
#define BINARY(x) static_cast<bitset<14> >(x)

#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define REP(i,m,n) for (int i=m;i<(int)(n);i++)

#define in_range(x, y, w, h) (0<=(int)(x) && (int)(x)<(int)(w) && 0<=(int)(y) && (int)(y)<(int)(h))
#define ALL(a) (a).begin(),(a).end()

typedef long long ll;
const int INF   = 1e9;
const ll  INFLL = 1e18;
typedef pair<int, int> PII;
int dx[4]={0, -1, 1, 0}, dy[4]={-1, 0, 0, 1};

bool dp[2][(1<<14)+1];

int main()
{
    ios::sync_with_stdio(false);
    int N; cin >> N;

    dp[0][0] = true;
    rep(i, N) {
        int A; cin >> A;
        for (int j=0; j<=1<<14; j++) {
            dp[(i+1)&1][j] |= dp[i&1][j];
            if (dp[i&1][j]) {
                dp[(i+1)&1][A^j] = true;
            }
        }
    }

    ll ans = 0;
    rep(i, (1<<14)+1) {
        ans += dp[N&1][i];
#ifdef DEBUG
        if (i < 1<<4) cerr << i << " " << dp[N&1][i] << endl;
#endif
    }
    cout << ans << endl;
}