# Program to find Nth term of series 0, 10, 30, 60, 99, 150, 210, 280………..

Given a number N. The task is to write a program to find the Nth term of the below series:

0, 10, 30, 60, 99, 150, 210, 280…..(N Terms)

Examples:

```Input: N = 4
Output: 60
For N = 4
4th Term = ( 5 * 4 * 4 - 5 * 4)
= 60

Input: N = 10
Output: 449

```

## Recommended: Please try your approach on {IDE} first, before moving on to the solution.

Approach: The generalized Nth term of this series:

``` ```

Below is the required implementation:

## C++

 `// C++ program to find the N-th term of the series: ` `// 0, 10, 30, 60, 99, 150, 210, ..... ` `#include ` `#include ` `using` `namespace` `std; ` ` `  `// calculate Nth term of series ` `int` `nthTerm(``int` `n) ` `{ ` `    ``return` `5 * ``pow``(n, 2) - 5 * n; ` `} ` ` `  `// Driver code ` `int` `main() ` `{ ` `    ``int` `N = 4; ` ` `  `    ``cout << nthTerm(N) << endl; ` ` `  `    ``return` `0; ` `} `

## Java

 `// Java program to find the N-th term of the series: ` `// 0, 10, 30, 60, 99, 150, 210, ..... ` `import` `java.util.*; ` ` `  `class` `solution ` `{ ` ` `  `// calculate Nth term of series ` `static` `int` `nthTerm(``int` `n) ` `{ ` `    ``return` `5` `* (``int``)Math.pow(n, ``2``) - ``5` `* n; ` `} ` ` `  `//Driver code ` `public` `static` `void` `main(String arr[]) ` `{ ` `  `  `     ``int` `N = ``4``; ` `     ``System.out.println(nthTerm(N) ); ` ` `  `} ` `} ` ` `  `//This code is contributed by Surendra_Gangwar `

## Python3

 `# Python3 program to find the ` `# N-th term of the series: ` `# 0, 10, 30, 60, 99, 150, 210, ..... ` ` `  `# calculate Nth term of series ` `def` `nthTerm(n): ` ` `  `    ``return` `5` `*` `pow``(n, ``2``) ``-` `5` `*` `n ` ` `  `# Driver code ` `N ``=` `4` `print``(nthTerm(N)) ` ` `  `# This code is contributed by ` `# Sanjit_Prasad `

## C#

 `// C# program to find the ` `// N-th term of the series: ` `// 0, 10, 30, 60, 99, 150, 210, ..... ` `using` `System;  ` ` `  `class` `GFG ` `{ ` ` `  `// calculate Nth term of series ` `static` `int` `nthTerm(``int` `n) ` `{ ` `    ``return` `5 * (``int``)Math.Pow(n, 2) - 5 * n; ` `} ` ` `  `// Driver code ` `public` `static` `void` `Main() ` `{ ` `    ``int` `N = 4; ` `    ``Console.Write(nthTerm(N)); ` `} ` `} ` ` `  `// This code is contributed ` `// by ChitraNayal `

## PHP

 ` `

Output:

```60
```

Time Complexity: O(1)

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