#include <fstream>
using namespace std;
int n,v[501],i,j,k,a,pos=0,var[501];
int cmmdc(int a, int b)
{
    while(a!=b)
        if(a>b)a-=b;
        else b-=a;
    return a;
}
int valid()
{
    int i,j;
    for(i=1;i<=n;i++)
        if(var[i])
            for(j=i+1;j<=n;j++)
                if(cmmdc(v[i],v[j])==1 && var[j] )return 1;
    return 0;
}

void back(int k)
{
    if(k==n+1)
    {
        if(valid())
            pos++;
    }
    else
    {
        var[k]=-1;
        while(var[k]<1)
        {
            var[k]++;
            back(k+1);
        }
    }
}
int main()
{
    ifstream fin("indep.in");
    ofstream fout("indep.out");
    fin>>n;
    for(i=1;i<=n;i++)
        fin>>v[i];
    back(1);
    fout<<pos;
}