#include <bits/stdc++.h>

using namespace std;

ifstream in("indep.in");
ofstream out("indep.out");

int n,a[501];
long long sum;

int cmmdc(int a,int b)
{
    int rest;
    while(b)
    {
        rest=a%b;
        a=b;
        b=rest;
    }

    return a;
}

int main()
{
    in>>n;

    for(int i=1;i<=n;i++)
        in>>a[i];

    for(int i=1;i<=n;i++)
    {
        int last=i;

        if(a[i]==1)
            sum++;

        for(int j=i+1;j<=n;j++)
            if( cmmdc(a[i],a[j])==1 )
            {
                sum+=pow(2,n-last-1);
                last=j;
            }
    }

    out<<sum;

    return 0;
}