use std::io::{Read, stdin};

fn main() {
    let mut buf = String::new();
    stdin().read_to_string(&mut buf).unwrap();
    let mut tok = buf.split_whitespace();
    let mut get = || tok.next().unwrap();
    macro_rules! get {
        ($t:ty) => (get().parse::<$t>().unwrap());
        () => (get!(usize));
    }
    
    let n = get!();
    let mut qs = vec![];
    let mut flag = vec![false; n * 3 + 1];
    for i in 2..flag.len() {
        if flag[i] { continue; }
        if i <= n {
            qs.push(i);
        }
        for j in 2..flag.len() {
            let k = i * j;
            if k >= flag.len() { break; }
            flag[k] = true;
        }
    }
    let mut ans = 0_i64;
    for i in 1..qs.len() {
        for j in i+1..qs.len() {
            for k in j+1..qs.len() {
                if !flag[qs[i]+qs[j]+qs[k]] {
                    ans += 1;
                }
            }
        }
    }
    println!("{}", ans);
}