use std::io::*;

fn main() {
    let mut s: String = String::new();
    std::io::stdin().read_to_string(&mut s).ok();
    let mut itr = s.trim().split_whitespace();
    let n: usize = itr.next().unwrap().parse().unwrap();
    let a: Vec<usize> = (0..n)
        .map(|_| itr.next().unwrap().parse().unwrap())
        .collect();

    // n C 3 -
    let mut cnt: Vec<usize> = vec![0; 100010];
    for i in 0..n {
        cnt[a[i]] += 1;
    }

    let mut ans = n * (n - 1) * (n - 2) / 3 / 2;
    for i in 0..100005 {
        if cnt[i] >= 3 {
            ans -= cnt[i] * (cnt[i] - 1) * (cnt[i] - 2) / 3 / 2;
        }
        if cnt[i] >= 2 {
            ans -= cnt[i] * (cnt[i] - 1) / 2 * (n - cnt[i]);
        }
    }
    println!("{}", ans % 1_000_000_007);
}