import sys
stdin=sys.stdin

ip=lambda: int(sp())
fp=lambda: float(sp())
lp=lambda:list(map(int,stdin.readline().split()))
tp=lambda:tuple(map(int,stdin.readline().split()))
sp=lambda:stdin.readline().rstrip()
yp=lambda:print('Yes')
np=lambda:print('No')

n=ip()
a=lp()
dp0=[-1 for _ in range(2**15+1)]
dp1=[-1 for _ in range(2**15+1)]

dp0[0]=0
for i in range(n):
    for j in range(2**15+1):
        if dp0[j]!=-1:
            dp1[j]=1
            now=j^a[i]
            dp1[j^a[i]]=1
    dp0=dp1
    dp1=[-1 for _ in range(2**15+10)]
    

ans=0
for u in range(2**15+10):
    if dp0[u]!=-1:
        ans+=1

print(ans)