#include <bits/stdc++.h>
using namespace std;
typedef signed long long ll;

#undef _P
#define _P(...) (void)printf(__VA_ARGS__)
#define FOR(x,to) for(x=0;x<to;x++)
#define ITR(x,c) for(__typeof(c.begin()) x=c.begin();x!=c.end();x++)
#define ALL(a) (a.begin()),(a.end())
#define ZERO(a) memset(a,0,sizeof(a))
#define MINUS(a) memset(a,0xff,sizeof(a))
//-------------------------------------------------------

int N,A[1010000];
ll ret;
ll mo=1000000007;
map<int,int> M;

void solve() {
	int i,j,k,l,r,x,y; string s;
	
	cin>>N;
	FOR(i,N) cin>>x, M[x]++;
	ret=x*(x-1)*(x-2)/6%mo;
	FOR(i,N) if(M[x]>=2) ret+=mo-(M[x]*(M[x]-1)/2*(N-M[x]))%mo;
	FOR(i,N) if(M[x]>=3) ret+=mo-(M[x]*(M[x]-1)*(M[x]-2)/6)%mo;
	cout<<ret<<endl;
}


int main(int argc,char** argv){
	string s;int i;
	if(argc==1) ios::sync_with_stdio(false);
	FOR(i,argc-1) s+=argv[i+1],s+='\n';
	FOR(i,s.size()) ungetc(s[s.size()-1-i],stdin);
	solve(); return 0;
}