#include <bits/stdc++.h>
#define ll long long
#define db(s,a) cout << s << ":" << a << endl
#define dbarr(a,n) for(ll i=1;i<=n;i++) cout << a[i] << " " ; cout << endl ;
#define isok cout << "ok" << endl
using namespace std ;
ll l , n , i , j , cnt ;
vector<ll> b , t ;
bool check(ll n , ll m){
	b.clear() ;
	t.clear() ;
	l = 0 ;
	while((1 << l)<=min(n,m)){
		if(n&(1 << l) && m&(1 << l)){
			return false ;
		}
		l++ ;
	}
	while(n){
		b.push_back(n%3) ;
		n /= 3 ;
	}
	while(m){
		t.push_back(m%3) ;
		m /= 3 ;
	}
	for(ll i=0;i<(ll)min(b.size(),t.size());i++){
		if(b[i]+t[i]>=3){
			return false ;
		}
	}
	return true ;
}
int main(){
//	freopen(".in","r",stdin) ;
//	freopen(".out","w",stdout) ;
	ios::sync_with_stdio(false) ;
	cin.tie(0) ;
	cout.tie(0) ;
	cin >> n ;
	for(i=1;i<=n;i++){
		for(j=1;j<=i;j++){
			if(check(i,j)){
				cnt++ ;
			}
		}
	}
	cout << cnt*2 ;
	return 0 ;
}