# Program to find the Nth term of series 5, 12, 21, 32, 45……

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

5, 12, 21, 32, 45……

Examples:

```Input: N = 2
Output: 12

Input: N = 5
Output: 45
```

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

Approach:
The generalized Nth term of this series:

Nth Term : n*n + 4*n

Below is the required implementation:

## C++

 `// CPP program to find ` `// the N-th term of the series: ` `// 5, 12, 21, 32, 45...... ` ` `  `#include ` `#include ` `using` `namespace` `std; ` ` `  `// calculate Nth term of series ` `int` `nthTerm(``int` `n) ` `{ ` `    ``return` `pow``(n, 2) + 4 * n; ` `} ` ` `  `// Driver code ` `int` `main() ` `{ ` ` `  `    ``// Get N ` `    ``int` `N = 4; ` ` `  `    ``// Get the Nth term ` `    ``cout << nthTerm(N) << endl; ` ` `  `    ``return` `0; ` `} `

## Java

 `// Java  program to find ` `// the N-th term of the series: ` `// 5, 12, 21, 32, 45...... ` `import` `java.io.*; ` ` `  `class` `GFG { ` `     `  ` `  ` `  `// calculate Nth term of series ` `static` `int` `nthTerm(``int` `n) ` `{ ` `    ``return` `(``int``)Math.pow(n, ``2``) + ``4` `* n; ` `} ` ` `  `// Driver code ` ` `  `    ``public` `static` `void` `main (String[] args) { ` `     `  `    ``// Get N ` `    ``int` `N = ``4``; ` ` `  `    ``// Get the Nth term ` `    ``System.out.println( nthTerm(N)); ` ` `  `    ``} ` `} ` `// This code is contributed ` `// by  inder_verma `

## Python3

 `# Python3 program to find ` `# the N-th term of the series: ` `# 5, 12, 21, 32, 45...... ` ` `  `# calculate Nth term of series ` `def` `nthTerm(n): ` `    ``return` `n ``*``*` `2` `+` `4` `*` `n; ` ` `  `# Driver code ` ` `  `# Get N ` `N ``=` `4` ` `  `# Get the Nth term ` `print``(nthTerm(N)) ` ` `  `# This code is contributed by Raj `

## C#

 `// C# program to find the  ` `// N-th term of the series: ` `// 5, 12, 21, 32, 45...... ` `using` `System; ` ` `  `class` `GFG ` `{ ` `     `  `// calculate Nth term of series ` `static` `int` `nthTerm(``int` `n) ` `{ ` `    ``return` `(``int``)Math.Pow(n, 2) + 4 * n; ` `} ` ` `  `// Driver code ` `public` `static` `void` `Main ()  ` `{ ` ` `  `    ``// Get N ` `    ``int` `N = 4; ` `     `  `    ``// Get the Nth term ` `    ``Console.WriteLine(nthTerm(N)); ` `} ` `} ` ` `  `// This code is contributed ` `// by sh.. `

## PHP

 ` `

Output:

```32
```

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Improved By : Mahadev99, inderDuMCA, vt_m, R_Raj