N = int(input())
A = list(map(int,input().split()))

dp = [ [0]*(2**15+1) for i in range(N+1) ]
dp[0][0] = 1
for i in range(N):
    for j in range(2**15+1):
        if dp[i][j] == 1:
            dp[i+1][j^A[i]] = 1
        dp[i+1][j] |= dp[i][j]

ans = 1
for i in range(1,2**15+1):
    ans += dp[N][i]
print(ans)