Octagonal number
Here given code implementation process.
// C Program for
// Octagonal number
#include <stdio.h>
void octagonalNo(int k)
{
// Print all initial k octagonal number
for (int n = 1; n <= k; ++n)
{
// Formula
// (3n²-2n)
// Calculate nth octagonal number
int result = (3 *(n *n) - 2 *n);
// Display calculated result
printf(" %d", result);
}
}
int main()
{
// Octagonal number are
// —————————————————————————————————————————————
// 1, 8, 21, 40, 65, 96, 133, 176, 225, 280,
// 341, 408, 481, 560, 645, 736, 833, 936, 1045, 1160,
// 1281, 1408, 1541, 1680, 1825, 1976, 2133, 2296, 2465,
// 2640, 2821, 3008, 3201, 3400, 3605, 3816, 4033,
// 4256, 4485, 4720 etc.
// k = 10
octagonalNo(10);
return 0;
}
Output
1 8 21 40 65 96 133 176 225 280
// Java program for
// Octagonal number
public class OctagonalNumber
{
public void octagonalNo(int k)
{
// Print all initial k octagonal number
for (int n = 1; n <= k; ++n)
{
// Formula
// (3n²-2n)
// Calculate nth octagonal number
int result = (3 * (n * n) - 2 * n);
// Display calculated result
System.out.print(" " + result);
}
}
public static void main(String[] args)
{
OctagonalNumber task = new OctagonalNumber();
// Octagonal number are
// —————————————————————————————————————————————
// 1, 8, 21, 40, 65, 96, 133, 176, 225, 280,
// 341, 408, 481, 560, 645, 736, 833, 936, 1045, 1160,
// 1281, 1408, 1541, 1680, 1825, 1976, 2133, 2296, 2465,
// 2640, 2821, 3008, 3201, 3400, 3605, 3816, 4033,
// 4256, 4485, 4720 etc.
// k = 10
task.octagonalNo(10);
}
}
Output
1 8 21 40 65 96 133 176 225 280
// Include header file
#include <iostream>
using namespace std;
// C++ program for
// Octagonal number
class OctagonalNumber
{
public: void octagonalNo(int k)
{
// Print all initial k octagonal number
for (int n = 1; n <= k; ++n)
{
// Formula
// (3n²-2n)
// Calculate nth octagonal number
int result = (3 *(n *n) - 2 *n);
// Display calculated result
cout << " " << result;
}
}
};
int main()
{
OctagonalNumber *task = new OctagonalNumber();
// Octagonal number are
// —————————————————————————————————————————————
// 1, 8, 21, 40, 65, 96, 133, 176, 225, 280,
// 341, 408, 481, 560, 645, 736, 833, 936, 1045, 1160,
// 1281, 1408, 1541, 1680, 1825, 1976, 2133, 2296, 2465,
// 2640, 2821, 3008, 3201, 3400, 3605, 3816, 4033,
// 4256, 4485, 4720 etc.
// k = 10
task->octagonalNo(10);
return 0;
}
Output
1 8 21 40 65 96 133 176 225 280
// Include namespace system
using System;
// Csharp program for
// Octagonal number
public class OctagonalNumber
{
public void octagonalNo(int k)
{
// Print all initial k octagonal number
for (int n = 1; n <= k; ++n)
{
// Formula
// (3n²-2n)
// Calculate nth octagonal number
int result = (3 * (n * n) - 2 * n);
// Display calculated result
Console.Write(" " + result);
}
}
public static void Main(String[] args)
{
OctagonalNumber task = new OctagonalNumber();
// Octagonal number are
// —————————————————————————————————————————————
// 1, 8, 21, 40, 65, 96, 133, 176, 225, 280,
// 341, 408, 481, 560, 645, 736, 833, 936, 1045, 1160,
// 1281, 1408, 1541, 1680, 1825, 1976, 2133, 2296, 2465,
// 2640, 2821, 3008, 3201, 3400, 3605, 3816, 4033,
// 4256, 4485, 4720 etc.
// k = 10
task.octagonalNo(10);
}
}
Output
1 8 21 40 65 96 133 176 225 280
package main
import "fmt"
// Go program for
// Octagonal number
func octagonalNo(k int) {
// Print all initial k octagonal number
for n := 1 ; n <= k ; n++ {
// Formula
// (3n²-2n)
// Calculate nth octagonal number
var result int = (3 * (n * n) - 2 * n)
// Display calculated result
fmt.Print(" ", result)
}
}
func main() {
// Octagonal number are
// —————————————————————————————————————————————
// 1, 8, 21, 40, 65, 96, 133, 176, 225, 280,
// 341, 408, 481, 560, 645, 736, 833, 936, 1045, 1160,
// 1281, 1408, 1541, 1680, 1825, 1976, 2133, 2296, 2465,
// 2640, 2821, 3008, 3201, 3400, 3605, 3816, 4033,
// 4256, 4485, 4720 etc.
// k = 10
octagonalNo(10)
}
Output
1 8 21 40 65 96 133 176 225 280
<?php
// Php program for
// Octagonal number
class OctagonalNumber
{
public function octagonalNo($k)
{
// Print all initial k octagonal number
for ($n = 1; $n <= $k; ++$n)
{
// Formula
// (3n²-2n)
// Calculate nth octagonal number
$result = (3 * ($n * $n) - 2 * $n);
// Display calculated result
echo(" ".$result);
}
}
}
function main()
{
$task = new OctagonalNumber();
// Octagonal number are
// —————————————————————————————————————————————
// 1, 8, 21, 40, 65, 96, 133, 176, 225, 280,
// 341, 408, 481, 560, 645, 736, 833, 936, 1045, 1160,
// 1281, 1408, 1541, 1680, 1825, 1976, 2133, 2296, 2465,
// 2640, 2821, 3008, 3201, 3400, 3605, 3816, 4033,
// 4256, 4485, 4720 etc.
// k = 10
$task->octagonalNo(10);
}
main();
Output
1 8 21 40 65 96 133 176 225 280
// Node JS program for
// Octagonal number
class OctagonalNumber
{
octagonalNo(k)
{
// Print all initial k octagonal number
for (var n = 1; n <= k; ++n)
{
// Formula
// (3n²-2n)
// Calculate nth octagonal number
var result = (3 * (n * n) - 2 * n);
// Display calculated result
process.stdout.write(" " + result);
}
}
}
function main()
{
var task = new OctagonalNumber();
// Octagonal number are
// —————————————————————————————————————————————
// 1, 8, 21, 40, 65, 96, 133, 176, 225, 280,
// 341, 408, 481, 560, 645, 736, 833, 936, 1045, 1160,
// 1281, 1408, 1541, 1680, 1825, 1976, 2133, 2296, 2465,
// 2640, 2821, 3008, 3201, 3400, 3605, 3816, 4033,
// 4256, 4485, 4720 etc.
// k = 10
task.octagonalNo(10);
}
main();
Output
1 8 21 40 65 96 133 176 225 280
# Python 3 program for
# Octagonal number
class OctagonalNumber :
def octagonalNo(self, k) :
n = 1
# Print all initial k octagonal number
while (n <= k) :
# Formula
# (3n²-2n)
# Calculate nth octagonal number
result = (3 * (n * n) - 2 * n)
# Display calculated result
print(" ", result, end = "")
n += 1
def main() :
task = OctagonalNumber()
# Octagonal number are
# —————————————————————————————————————————————
# 1, 8, 21, 40, 65, 96, 133, 176, 225, 280,
# 341, 408, 481, 560, 645, 736, 833, 936, 1045, 1160,
# 1281, 1408, 1541, 1680, 1825, 1976, 2133, 2296, 2465,
# 2640, 2821, 3008, 3201, 3400, 3605, 3816, 4033,
# 4256, 4485, 4720 etc.
# k = 10
task.octagonalNo(10)
if __name__ == "__main__": main()
Output
1 8 21 40 65 96 133 176 225 280
# Ruby program for
# Octagonal number
class OctagonalNumber
def octagonalNo(k)
n = 1
# Print all initial k octagonal number
while (n <= k)
# Formula
# (3n²-2n)
# Calculate nth octagonal number
result = (3 * (n * n) - 2 * n)
# Display calculated result
print(" ", result)
n += 1
end
end
end
def main()
task = OctagonalNumber.new()
# Octagonal number are
# —————————————————————————————————————————————
# 1, 8, 21, 40, 65, 96, 133, 176, 225, 280,
# 341, 408, 481, 560, 645, 736, 833, 936, 1045, 1160,
# 1281, 1408, 1541, 1680, 1825, 1976, 2133, 2296, 2465,
# 2640, 2821, 3008, 3201, 3400, 3605, 3816, 4033,
# 4256, 4485, 4720 etc.
# k = 10
task.octagonalNo(10)
end
main()
Output
1 8 21 40 65 96 133 176 225 280
// Scala program for
// Octagonal number
class OctagonalNumber()
{
def octagonalNo(k: Int): Unit = {
var n: Int = 1;
// Print all initial k octagonal number
while (n <= k)
{
// Formula
// (3n²-2n)
// Calculate nth octagonal number
var result: Int = (3 * (n * n) - 2 * n);
// Display calculated result
print(" " + result);
n += 1;
}
}
}
object Main
{
def main(args: Array[String]): Unit = {
var task: OctagonalNumber = new OctagonalNumber();
// Octagonal number are
// —————————————————————————————————————————————
// 1, 8, 21, 40, 65, 96, 133, 176, 225, 280,
// 341, 408, 481, 560, 645, 736, 833, 936, 1045, 1160,
// 1281, 1408, 1541, 1680, 1825, 1976, 2133, 2296, 2465,
// 2640, 2821, 3008, 3201, 3400, 3605, 3816, 4033,
// 4256, 4485, 4720 etc.
// k = 10
task.octagonalNo(10);
}
}
Output
1 8 21 40 65 96 133 176 225 280
// Swift 4 program for
// Octagonal number
class OctagonalNumber
{
func octagonalNo(_ k: Int)
{
var n: Int = 1;
// Print all initial k octagonal number
while (n <= k)
{
// Formula
// (3n²-2n)
// Calculate nth octagonal number
let result: Int = (3 * (n * n) - 2 * n);
// Display calculated result
print(" ", result, terminator: "");
n += 1;
}
}
}
func main()
{
let task: OctagonalNumber = OctagonalNumber();
// Octagonal number are
// —————————————————————————————————————————————
// 1, 8, 21, 40, 65, 96, 133, 176, 225, 280,
// 341, 408, 481, 560, 645, 736, 833, 936, 1045, 1160,
// 1281, 1408, 1541, 1680, 1825, 1976, 2133, 2296, 2465,
// 2640, 2821, 3008, 3201, 3400, 3605, 3816, 4033,
// 4256, 4485, 4720 etc.
// k = 10
task.octagonalNo(10);
}
main();
Output
1 8 21 40 65 96 133 176 225 280
// Kotlin program for
// Octagonal number
class OctagonalNumber
{
fun octagonalNo(k: Int): Unit
{
var n: Int = 1;
// Print all initial k octagonal number
while (n <= k)
{
// Formula
// (3n²-2n)
// Calculate nth octagonal number
val result: Int = (3 * (n * n) - 2 * n);
// Display calculated result
print(" " + result);
n += 1;
}
}
}
fun main(args: Array < String > ): Unit
{
val task: OctagonalNumber = OctagonalNumber();
// Octagonal number are
// —————————————————————————————————————————————
// 1, 8, 21, 40, 65, 96, 133, 176, 225, 280,
// 341, 408, 481, 560, 645, 736, 833, 936, 1045, 1160,
// 1281, 1408, 1541, 1680, 1825, 1976, 2133, 2296, 2465,
// 2640, 2821, 3008, 3201, 3400, 3605, 3816, 4033,
// 4256, 4485, 4720 etc.
// k = 10
task.octagonalNo(10);
}
Output
1 8 21 40 65 96 133 176 225 280
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