# Centered triangular number

Here given code implementation process.

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

void centeredTriangularNo(int k)
{
// Print all initial k centered triangular number
for (int n = 0; n < k; ++n)
{
// Formula
//  (3n²) + 3n + 1
// —————————————
//       2

// Calculate nth triangular number
int result = ((3 *(n *n) + (3 *n) + 2) / 2);

// Display calculated result
printf("  %d", result);
}
}
int main()
{
// Centered triangular number are
// —————————————————————————————————————————————
// 1, 4, 10, 19, 31, 46, 64, 85, 109, 136, 166,
// 199, 235, 274, 316, 361, 409, 460, 514,
// 571, 631, 694, 760, 829 ... etc

// k = 10
centeredTriangularNo(10);
return 0;
}``````

#### Output

``  1  4  10  19  31  46  64  85  109  136``
``````// Java program for
// Centered triangular number
public class TriangularNumber
{
public void centeredTriangularNo(int k)
{
// Print all initial k centered triangular number
for (int n = 0; n < k; ++n)
{
// Formula
//  (3n²) + 3n + 1
// —————————————
//       2

// Calculate nth triangular number
int result = ((3 * (n * n) + (3 * n) + 2) / 2);

// Display calculated result
System.out.print(" " + result);
}
}
public static void main(String[] args)
{
// Centered triangular number are
// —————————————————————————————————————————————
// 1, 4, 10, 19, 31, 46, 64, 85, 109, 136, 166,
// 199, 235, 274, 316, 361, 409, 460, 514,
// 571, 631, 694, 760, 829 ... etc

// k = 10
}
}``````

#### Output

`` 1 4 10 19 31 46 64 85 109 136``
``````// Include header file
#include <iostream>
using namespace std;
// C++ program for
// Centered triangular number
class TriangularNumber
{
public: void centeredTriangularNo(int k)
{
// Print all initial k centered triangular number
for (int n = 0; n < k; ++n)
{
// Formula
//  (3n²) + 3n + 1
// —————————————
//       2

// Calculate nth triangular number
int result = ((3 *(n *n) + (3 *n) + 2) / 2);

// Display calculated result
cout << " " << result;
}
}
};
int main()
{
// Centered triangular number are
// —————————————————————————————————————————————
// 1, 4, 10, 19, 31, 46, 64, 85, 109, 136, 166,
// 199, 235, 274, 316, 361, 409, 460, 514,
// 571, 631, 694, 760, 829 ... etc

// k = 10
return 0;
}``````

#### Output

`` 1 4 10 19 31 46 64 85 109 136``
``````// Include namespace system
using System;
// Csharp program for
// Centered triangular number
public class TriangularNumber
{
public void centeredTriangularNo(int k)
{
// Print all initial k centered triangular number
for (int n = 0; n < k; ++n)
{
// Formula
//  (3n²) + 3n + 1
// —————————————
//       2

// Calculate nth triangular number
int result = ((3 * (n * n) + (3 * n) + 2) / 2);

// Display calculated result
Console.Write(" " + result);
}
}
public static void Main(String[] args)
{
// Centered triangular number are
// —————————————————————————————————————————————
// 1, 4, 10, 19, 31, 46, 64, 85, 109, 136, 166,
// 199, 235, 274, 316, 361, 409, 460, 514,
// 571, 631, 694, 760, 829 ... etc

// k = 10
}
}``````

#### Output

`` 1 4 10 19 31 46 64 85 109 136``
``````package main
import "fmt"
// Go program for
// Centered triangular number

func centeredTriangularNo(k int) {
// Print all initial k centered triangular number
for n := 0 ; n < k ; n++ {
// Formula
//  (3n²) + 3n + 1
// —————————————
//       2
// Calculate nth triangular number
var result int = ((3 * (n * n) + (3 * n) + 2) / 2)
// Display calculated result
fmt.Print(" ", result)
}
}
func main() {

// Centered triangular number are
// —————————————————————————————————————————————
// 1, 4, 10, 19, 31, 46, 64, 85, 109, 136, 166,
// 199, 235, 274, 316, 361, 409, 460, 514,
// 571, 631, 694, 760, 829 ... etc

// k = 10
centeredTriangularNo(10)
}``````

#### Output

`` 1 4 10 19 31 46 64 85 109 136``
``````<?php
// Php program for
// Centered triangular number
class TriangularNumber
{
public	function centeredTriangularNo(\$k)
{
// Print all initial k centered triangular number
for (\$n = 0; \$n < \$k; ++\$n)
{
// Formula
//  (3n²) + 3n + 1
// —————————————
//       2

// Calculate nth triangular number
\$result = ((int)((3 * (\$n * \$n) + (3 * \$n) + 2) / 2));

// Display calculated result
echo(" ".\$result);
}
}
}

function main()
{
// Centered triangular number are
// —————————————————————————————————————————————
// 1, 4, 10, 19, 31, 46, 64, 85, 109, 136, 166,
// 199, 235, 274, 316, 361, 409, 460, 514,
// 571, 631, 694, 760, 829 ... etc

// k = 10
}
main();``````

#### Output

`` 1 4 10 19 31 46 64 85 109 136``
``````// Node JS program for
// Centered triangular number
class TriangularNumber
{
centeredTriangularNo(k)
{
// Print all initial k centered triangular number
for (var n = 0; n < k; ++n)
{
// Formula
//  (3n²) + 3n + 1
// —————————————
//       2

// Calculate nth triangular number
var result = (parseInt((3 * (n * n) + (3 * n) + 2) / 2));

// Display calculated result
process.stdout.write(" " + result);
}
}
}

function main()
{
// Centered triangular number are
// —————————————————————————————————————————————
// 1, 4, 10, 19, 31, 46, 64, 85, 109, 136, 166,
// 199, 235, 274, 316, 361, 409, 460, 514,
// 571, 631, 694, 760, 829 ... etc

// k = 10
}
main();``````

#### Output

`` 1 4 10 19 31 46 64 85 109 136``
``````#  Python 3 program for
#  Centered triangular number
class TriangularNumber :
def centeredTriangularNo(self, k) :
n = 0
#  Print all initial k centered triangular number
while (n < k) :
#  Formula
#   (3n²) + 3n + 1
#  —————————————
#        2

#  Calculate nth triangular number
result = (int((3 * (n * n) + (3 * n) + 2) / 2))

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

def main() :
#  Centered triangular number are
#  —————————————————————————————————————————————
#  1, 4, 10, 19, 31, 46, 64, 85, 109, 136, 166,
#  199, 235, 274, 316, 361, 409, 460, 514,
#  571, 631, 694, 760, 829 ... etc

#  k = 10

if __name__ == "__main__": main()``````

#### Output

``  1  4  10  19  31  46  64  85  109  136``
``````#  Ruby program for
#  Centered triangular number
class TriangularNumber
def centeredTriangularNo(k)
n = 0
#  Print all initial k centered triangular number
while (n < k)
#  Formula
#   (3n²) + 3n + 1
#  —————————————
#        2

#  Calculate nth triangular number
result = ((3 * (n * n) + (3 * n) + 2) / 2)

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

end

end

def main()
#  Centered triangular number are
#  —————————————————————————————————————————————
#  1, 4, 10, 19, 31, 46, 64, 85, 109, 136, 166,
#  199, 235, 274, 316, 361, 409, 460, 514,
#  571, 631, 694, 760, 829 ... etc

#  k = 10
end

main()``````

#### Output

`` 1 4 10 19 31 46 64 85 109 136``
``````// Scala program for
// Centered triangular number
class TriangularNumber()
{
def centeredTriangularNo(k: Int): Unit = {
var n: Int = 0;
// Print all initial k centered triangular number
while (n < k)
{
// Formula
//  (3n²) + 3n + 1
// —————————————
//       2

// Calculate nth triangular number
var result: Int = ((3 * (n * n) + (3 * n) + 2) / 2);

// Display calculated result
print(" " + result);
n += 1;
}
}
}
object Main
{
def main(args: Array[String]): Unit = {
var task: TriangularNumber = new TriangularNumber();
// Centered triangular number are
// —————————————————————————————————————————————
// 1, 4, 10, 19, 31, 46, 64, 85, 109, 136, 166,
// 199, 235, 274, 316, 361, 409, 460, 514,
// 571, 631, 694, 760, 829 ... etc
// k = 10
}
}``````

#### Output

`` 1 4 10 19 31 46 64 85 109 136``
``````// Swift 4 program for
// Centered triangular number
class TriangularNumber
{
func centeredTriangularNo(_ k: Int)
{
var n: Int = 0;
// Print all initial k centered triangular number
while (n < k)
{
// Formula
//  (3n²) + 3n + 1
// —————————————
//       2

// Calculate nth triangular number
let result: Int = ((3 * (n * n) + (3 * n) + 2) / 2);

// Display calculated result
print(" ", result, terminator: "");
n += 1;
}
}
}
func main()
{
// Centered triangular number are
// —————————————————————————————————————————————
// 1, 4, 10, 19, 31, 46, 64, 85, 109, 136, 166,
// 199, 235, 274, 316, 361, 409, 460, 514,
// 571, 631, 694, 760, 829 ... etc

// k = 10
}
main();``````

#### Output

``  1  4  10  19  31  46  64  85  109  136``
``````// Kotlin program for
// Centered triangular number
class TriangularNumber
{
fun centeredTriangularNo(k: Int): Unit
{
var n: Int = 0;
// Print all initial k centered triangular number
while (n < k)
{
// Formula
//  (3n²) + 3n + 1
// —————————————
//       2

// Calculate nth triangular number
val result: Int = ((3 * (n * n) + (3 * n) + 2) / 2);

// Display calculated result
print(" " + result);
n += 1;
}
}
}
fun main(args: Array < String > ): Unit
{
// Centered triangular number are
// —————————————————————————————————————————————
// 1, 4, 10, 19, 31, 46, 64, 85, 109, 136, 166,
// 199, 235, 274, 316, 361, 409, 460, 514,
// 571, 631, 694, 760, 829 ... etc

// k = 10
}``````

#### Output

`` 1 4 10 19 31 46 64 85 109 136``

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