Question

7 Write a java program to first 20
Tribacci series [Note . A tribonacci series is one in which the sum next term is the sum of previous three terms Ex÷ 0,1,2,3,6,11,20​

Answer 1

Answer:

import java.io.*;

class GFG {

// Recursion Function

static int printTribRec(int n)

{

if (n == 0 || n == 1 || n == 2)

return 0;

if (n == 3)

return 1;

else

return printTribRec(n - 1) +

printTribRec(n - 2) +

printTribRec(n - 3);

}

static void printTrib(int n)

{

for (int i = 1; i < n; i++)

System.out.print(printTribRec(i)

+" ");

}

// Driver code

public static void main(String args[])

{

int n = 10;

printTrib(n);

}

}

// This code is contributed by

Output :

0 0 1 1 2 4 7 13 24 44