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Sum of all the numbers in the Nth parenthesis
• Last Updated : 01 Apr, 2021

Given an integer N and a sequence (1), (3, 5), (7, 9, 11), (13, 15, 17, 19), ….. the task is to find the sum of all the numbers in Nth parenthesis.
Examples:

Input: N = 2
Output:
3 + 5 = 8
Input: N = 3
Output: 27
7 + 9 + 11 = 27

Approach: It can be observed that for the values of N = 1, 2, 3, … a series will be formed as 1, 8, 27, 64, 125, 216, 343, … whose Nth term is N3
Below is the implementation of the above approach:

## C++

 `// C++ implementation of the approach``#include ``using` `namespace` `std;` `// Function to return the sum of the``// numbers in the nth parenthesis``int` `findSum(``int` `n)``{``    ``return` `pow``(n, 3);``}` `// Driver code``int` `main()``{``    ``int` `n = 3;` `    ``cout << findSum(n);` `    ``return` `0;``}`

## Java

 `// Java implementation of the approach``class` `GFG``{``    ` `// Function to return the sum of the``// numbers in the nth parenthesis``static` `int` `findSum(``int` `n)``{``    ``return` `(``int``)Math.pow(n, ``3``);``}` `// Driver code``public` `static` `void` `main(String[] args)``{``    ``int` `n = ``3``;` `    ``System.out.println(findSum(n));``}``}` `// This code is contributed by Code_Mech`

## Python3

 `# Python3 implementation of the approach` `# Function to return the sum of the``# numbers in the nth parenthesis``def` `findSum(n) :` `    ``return` `n ``*``*` `3``;` `# Driver code``if` `__name__ ``=``=` `"__main__"` `:` `    ``n ``=` `3``;` `    ``print``(findSum(n));` `# This code is contributed by AnkitRai01`

## C#

 `// C# implementation of the approach``using` `System;``class` `GFG``{``    ` `// Function to return the sum of the``// numbers in the nth parenthesis``static` `int` `findSum(``int` `n)``{``    ``return` `(``int``)Math.Pow(n, 3);``}` `// Driver code``public` `static` `void` `Main(String[] args)``{``    ``int` `n = 3;` `    ``Console.WriteLine(findSum(n));``}``}` `// This code is contributed by 29AjayKumar`

## Javascript

 ``
Output:
`27`

Time Complexity: O(1)

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