#include <iostream>
#include <vector>
using namespace std;

const int MAX_N = 10000000;

vector<int> gcd_cache(MAX_N + 1);

void precompute_gcd() {
    for (int i = 1; i <= MAX_N; ++i) {
        for (int j = i; j <= MAX_N; j += i) {
            gcd_cache[j] = i;
        }
    }
}

int main() {
    int n;
    cin >> n;

    precompute_gcd();

    int count = 0;
    for (int a = 1; a <= n; ++a) {
        for (int b = a; b <= n; ++b) {
            if (gcd_cache[b] == (a ^ b)) {
                count++;
            }
        }
    }

    cout << count << endl;
    return 0;
}