Question

write a java program to print the following series:
1 5 9 13 17...n terms​

Answer 1

Answer:

Given series is 1,5,9,13,17,...

Common difference (d)=5−1=4

First term is a=1

So n

th

term is t

n

=a+(n−1)d=1+(n−1)4=4n−3

∴t

n

=4n−3

Answer 2

Required program:

import java.util.*;

public class series

{

public static void main()

{

Scanner sc = new Scanner (System.in);

int n;

System.out. print("Entered number is");

n =sc.nextInt();

for(int i=1 ; i<=n ;i+=4)

{

System. out.print(i+",");

}

}

}

Or:

public class series

{

public static void main(int n)

{

System. out.println("Entered number is"+n);

for(int i=1 ; i<=n ; i+=4)

System. out.println(i+",");

}

}

Input:

n=26

Output

1,5,9,13,17,21,25