Centered octagonal number

Here given code implementation process.

// C Program for
// Centered octagonal number
#include <stdio.h>

void centeredOctagonalNo(int k)
{
	// Print all initial k centered octagonal number
	for (int n = 1; n <= k; ++n)
	{
		//   Formula
		//   (4n² - 4n + 1) 
      
		// Calculate nth octagonal number
		int result = ((4 *(n *n) - 4 *n + 1));
      
		// Display Calculated value
		printf("  %d", result);
	}
}
int main()
{
	// Centered octagonal numbers are
	// —————————————————————————————————————————————
	//   1, 9, 25, 49, 81, 121, 169, 225, 289, 361 
	//   441, 529, 625, 729, 841, 961 ... etc
	//  Test  k = 10
	centeredOctagonalNo(10);
	return 0;
}

Output

  1  9  25  49  81  121  169  225  289  361
// Java program for
// Centered octagonal number
public class CenteredOctagonal
{
	public void centeredOctagonalNo(int k)
	{
		// Print all initial k centered octagonal number
		for (int n = 1; n <= k; ++n)
		{
			//   Formula
			//   (4n² - 4n + 1) 
          
			// Calculate nth octagonal number
			int result = ((4 * (n * n) - 4 * n + 1));
          
			// Display calculated result
			System.out.print(" " + result);
		}
	}
	public static void main(String[] args)
	{
		CenteredOctagonal task = new CenteredOctagonal();
		// Centered octagonal numbers are
		// —————————————————————————————————————————————
		//   1, 9, 25, 49, 81, 121, 169, 225, 289, 361 
		//   441, 529, 625, 729, 841, 961 ... etc
		//  Test  k = 10
		task.centeredOctagonalNo(10);
	}
}

Output

 1 9 25 49 81 121 169 225 289 361
// Include header file
#include <iostream>
using namespace std;
// C++ program for
// Centered octagonal number

class CenteredOctagonal
{
	public: void centeredOctagonalNo(int k)
	{
		// Print all initial k centered octagonal number
		for (int n = 1; n <= k; ++n)
		{
			//   Formula
			//   (4n² - 4n + 1) 
          
			// Calculate nth octagonal number
			int result = ((4 *(n *n) - 4 *n + 1));
          
			// Display calculated result
			cout << " " << result;
		}
	}
};
int main()
{
	CenteredOctagonal *task = new CenteredOctagonal();
	// Centered octagonal numbers are
	// —————————————————————————————————————————————
	//   1, 9, 25, 49, 81, 121, 169, 225, 289, 361 
	//   441, 529, 625, 729, 841, 961 ... etc
	//  Test  k = 10
	task->centeredOctagonalNo(10);
	return 0;
}

Output

 1 9 25 49 81 121 169 225 289 361
// Include namespace system
using System;
// Csharp program for
// Centered octagonal number
public class CenteredOctagonal
{
	public void centeredOctagonalNo(int k)
	{
		// Print all initial k centered octagonal number
		for (int n = 1; n <= k; ++n)
		{
			//   Formula
			//   (4n² - 4n + 1) 
          
			// Calculate nth octagonal number
			int result = ((4 * (n * n) - 4 * n + 1));
          
			// Display calculated result
			Console.Write(" " + result);
		}
	}
	public static void Main(String[] args)
	{
		CenteredOctagonal task = new CenteredOctagonal();
		// Centered octagonal numbers are
		// —————————————————————————————————————————————
		//   1, 9, 25, 49, 81, 121, 169, 225, 289, 361 
		//   441, 529, 625, 729, 841, 961 ... etc
		//  Test  k = 10
		task.centeredOctagonalNo(10);
	}
}

Output

 1 9 25 49 81 121 169 225 289 361
package main
import "fmt"
// Go program for
// Centered octagonal number

func centeredOctagonalNo(k int) {
	// Print all initial k centered octagonal number
	for n := 1 ; n <= k ; n++ {
		//   Formula
		//   (4n² - 4n + 1) 
      
		// Calculate nth octagonal number
		var result int = ((4 * (n * n) - 4 * n + 1))
      
		// Display calculated result
		fmt.Print(" ", result)
	}
}
func main() {

	// Centered octagonal numbers are
	// —————————————————————————————————————————————
	//   1, 9, 25, 49, 81, 121, 169, 225, 289, 361 
	//   441, 529, 625, 729, 841, 961 ... etc
  
	//  Test  k = 10
	centeredOctagonalNo(10)
}

Output

 1 9 25 49 81 121 169 225 289 361
<?php
// Php program for
// Centered octagonal number
class CenteredOctagonal
{
	public	function centeredOctagonalNo($k)
	{
		// Print all initial k centered octagonal number
		for ($n = 1; $n <= $k; ++$n)
		{
			//   Formula
			//   (4n² - 4n + 1) 
          
			// Calculate nth octagonal number
			$result = ((4 * ($n * $n) - 4 * $n + 1));
          
			// Display calculated result
			echo(" ".$result);
		}
	}
}

function main()
{
	$task = new CenteredOctagonal();
	// Centered octagonal numbers are
	// —————————————————————————————————————————————
	//   1, 9, 25, 49, 81, 121, 169, 225, 289, 361 
	//   441, 529, 625, 729, 841, 961 ... etc
	//  Test  k = 10
	$task->centeredOctagonalNo(10);
}
main();

Output

 1 9 25 49 81 121 169 225 289 361
// Node JS program for
// Centered octagonal number
class CenteredOctagonal
{
	centeredOctagonalNo(k)
	{
		// Print all initial k centered octagonal number
		for (var n = 1; n <= k; ++n)
		{
			//   Formula
			//   (4n² - 4n + 1) 
          
			// Calculate nth octagonal number
			var result = ((4 * (n * n) - 4 * n + 1));
          
			// Display calculated result
			process.stdout.write(" " + result);
		}
	}
}

function main()
{
	var task = new CenteredOctagonal();
	// Centered octagonal numbers are
	// —————————————————————————————————————————————
	//   1, 9, 25, 49, 81, 121, 169, 225, 289, 361 
	//   441, 529, 625, 729, 841, 961 ... etc
  
	//  Test  k = 10
	task.centeredOctagonalNo(10);
}
main();

Output

 1 9 25 49 81 121 169 225 289 361
#  Python 3 program for
#  Centered octagonal number
class CenteredOctagonal :
	def centeredOctagonalNo(self, k) :
		n = 1
		#  Print all initial k centered octagonal number
		while (n <= k) :
			#    Formula
			#    (4n² - 4n + 1) 
            
			#  Calculate nth octagonal number
			result = ((4 * (n * n) - 4 * n + 1))

			#  Display calculated result
			print(" ", result, end = "")
			n += 1
		
	

def main() :
	task = CenteredOctagonal()
	#  Centered octagonal numbers are
	#  —————————————————————————————————————————————
	#    1, 9, 25, 49, 81, 121, 169, 225, 289, 361 
	#    441, 529, 625, 729, 841, 961 ... etc
    
	#   Test  k = 10
	task.centeredOctagonalNo(10)

if __name__ == "__main__": main()

Output

  1  9  25  49  81  121  169  225  289  361
#  Ruby program for
#  Centered octagonal number
class CenteredOctagonal 
	def centeredOctagonalNo(k) 
		n = 1
		#  Print all initial k centered octagonal number
		while (n <= k) 
			#    Formula
			#    (4n² - 4n + 1) 
            
			#  Calculate nth octagonal number
			result = ((4 * (n * n) - 4 * n + 1))

			#  Display calculated result
			print(" ", result)
			n += 1
		end

	end

end

def main() 
	task = CenteredOctagonal.new()
	#  Centered octagonal numbers are
	#  —————————————————————————————————————————————
	#    1, 9, 25, 49, 81, 121, 169, 225, 289, 361 
	#    441, 529, 625, 729, 841, 961 ... etc
    
	#   Test  k = 10
	task.centeredOctagonalNo(10)
end

main()

Output

 1 9 25 49 81 121 169 225 289 361
// Scala program for
// Centered octagonal number
class CenteredOctagonal()
{
	def centeredOctagonalNo(k: Int): Unit = {
		var n: Int = 1;
		// Print all initial k centered octagonal number
		while (n <= k)
		{
			//   Formula
			//   (4n² - 4n + 1) 
          
			// Calculate nth octagonal number
			var result: Int = ((4 * (n * n) - 4 * n + 1));
          
			// Display calculated result
			print(" " + result);
			n += 1;
		}
	}
}
object Main
{
	def main(args: Array[String]): Unit = {
		var task: CenteredOctagonal = new CenteredOctagonal();
		// Centered octagonal numbers are
		// —————————————————————————————————————————————
		//   1, 9, 25, 49, 81, 121, 169, 225, 289, 361 
		//   441, 529, 625, 729, 841, 961 ... etc
  
		//  Test  k = 10
		task.centeredOctagonalNo(10);
	}
}

Output

 1 9 25 49 81 121 169 225 289 361
// Swift 4 program for
// Centered octagonal number
class CenteredOctagonal
{
	func centeredOctagonalNo(_ k: Int)
	{
		var n: Int = 1;
		// Print all initial k centered octagonal number
		while (n <= k)
		{
			//   Formula
			//   (4n² - 4n + 1) 
          
			// Calculate nth octagonal number
			let result: Int = ((4 * (n * n) - 4 * n + 1));
          
			// Display calculated result
			print(" ", result, terminator: "");
			n += 1;
		}
	}
}
func main()
{
	let task: CenteredOctagonal = CenteredOctagonal();
	// Centered octagonal numbers are
	// —————————————————————————————————————————————
	//   1, 9, 25, 49, 81, 121, 169, 225, 289, 361 
	//   441, 529, 625, 729, 841, 961 ... etc
  
	//  Test  k = 10
	task.centeredOctagonalNo(10);
}
main();

Output

  1  9  25  49  81  121  169  225  289  361
// Kotlin program for
// Centered octagonal number
class CenteredOctagonal
{
	fun centeredOctagonalNo(k: Int): Unit
	{
		var n: Int = 1;
		// Print all initial k centered octagonal number
		while (n <= k)
		{
			//   Formula
			//   (4n² - 4n + 1) 
          
			// Calculate nth octagonal number
			val result: Int = ((4 * (n * n) - 4 * n + 1));
          
			// Display calculated result
			print(" " + result);
			n += 1;
		}
	}
}
fun main(args: Array < String > ): Unit
{
	val task: CenteredOctagonal = CenteredOctagonal();
	// Centered octagonal numbers are
	// —————————————————————————————————————————————
	//   1, 9, 25, 49, 81, 121, 169, 225, 289, 361 
	//   441, 529, 625, 729, 841, 961 ... etc
  
	//  Test  k = 10
	task.centeredOctagonalNo(10);
}

Output

 1 9 25 49 81 121 169 225 289 361

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