Question

wap in java to print the given pell series 1, 2, 5, 12, 29.... n terms​

Answer 1

Answer:

// Pell Number Series using Recursion in JAVA

class PellNumber {

// calculate n-th Pell number

public static int pell(int n)

{

if (n <= 2)

return n;

return 2 * pell(n - 1) + pell(n - 2);

}

// driver function

public static void main(String args[])

{

int n = 4;

System.out.println(pell(n));

}

}