#include <iostream>
#include <map>
using namespace std;
typedef long long int ll;
#define E 1000000007

ll ncm(ll n,ll m){
	if(n<m)	return 0;
	if(n==m)	return 1;
	ll ans=1;
	for(int i=0;i<m;i++){
		ans*=n-i;
		ans/=i+1;
	}
	return ans;
}

int main(){
	int n;	cin>>n;
	map<int,int> lib;
	int a;
	for(int i=0;i<n;i++){
		cin>>a;
		lib[a]++;
	}
	ll ans=ncm(n,3);
	for(map<int,int>::iterator it=lib.begin();it!=lib.end();it++){
		ans-=(ncm(it->second,2)*(n-(it->second))+ncm(it->second,3))%E;
		if(ans<0)	ans+=E;
	}
	cout<<ans%E<<endl;
	return 0;
}