import Data.Bits
import Data.Array

main  = do
    n <- read <$> getLine :: IO Int
    ns <- listArray (1,n) . map read . words <$> getLine :: IO (Array Int Int)
    let memo = dp ns 0 n (listArray (0,1) [])
    print . sum $ [if memo!i then 1 else 0 | i<-[0..r]]

r = 16384

dp :: Array Int Int -> Int -> Int -> Array Int Bool -> Array Int Bool
dp ns y n memo = if y > n 
    then memo 
    else dp ns (y+1) n memo'
    where
    memo' = array (0,r) $ [(x, f y x)|x<-[0..r]]
    f 0 0 = True
    f 0 _ = False
    f y x = memo!x || (if x `xor` ns!y < r then memo!(x `xor` (ns!y)) else False)