C++ Tribonacci Series By Recursion

#include<iostream>

using namespace std;

int anik(int a)

{

   if(a == 0 || a == 1)

   {

       return 0;

   }

   else if(a == 2 || a == 3)

   {

       return 1;

   }

    else

    {

        return anik(a-1) + anik(a-2) + anik(a-3);

    }

}

int main()

{

    int n, i, j = 0;

    cout << "Enter A Number :: ";

    cin >> n;

    cout << endl;

    cout << "Tribonacci Series :: ";

    for(i=1;i<=n;i++)

    {

        cout << anik(j) << " ";

        j++;

    }

    cout << endl;

    return 0;

}