Find Nth term of the series 3, 14, 39, 84…

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

3, 14, 39, 84…

**Examples:**

Input:3Output:39 For N = 3 Nth term = ( 3*3*3 ) + ( 3*3 ) + 3 = 39Input:4Output:84

Formula to calculate the Nth term of the series:

Nth term = ( N*N*N ) + ( N*N ) + N

Below is the required implementation:

## C++

`// CPP program to find N-th term of the series: ` `// 3, 14, 38, 84... ` `#include <iostream> ` `using` `namespace` `std; ` ` ` `// calculate Nth term of series ` `int` `nthTerm(` `int` `N) ` `{ ` ` ` `return` `(N * N * N) + (N * N) + N; ` `} ` ` ` `// Driver Function ` `int` `main() ` `{ ` ` ` `int` `N = 3; ` ` ` ` ` `cout << nthTerm(N); ` ` ` ` ` `return` `0; ` `} ` |

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## Java

`// Java program to find Nth number ` `import` `java.io.*; ` ` ` `// calculate Nth term of this series ` `class` `GFG ` `{ ` `public` `int` `nthTerm(` `int` `N) ` `{ ` ` ` `// By using above formula ` ` ` `return` `(N * N * N) + (N * N) + N; ` `} ` ` ` `// Driver Code ` `public` `static` `void` `main(String[] args) ` `{ ` ` ` `int` `N = ` `3` `; ` ` ` `GFG a = ` `new` `GFG(); ` ` ` ` ` `// call and print Nth term ` ` ` `System.out.println(a.nthTerm(N)); ` `} ` `} ` |

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## Python 3

`# Python 3 program to find N-th ` `# term of the series: ` `# 3, 14, 38, 84... ` ` ` `# Function to calculate Nth term of series ` `def` `nthTerm(n) : ` ` ` ` ` `return` `(N ` `*` `N ` `*` `N) ` `+` `(N ` `*` `N) ` `+` `N ` ` ` `# Driver code ` `if` `__name__ ` `=` `=` `"__main__"` `: ` ` ` ` ` `N ` `=` `3` ` ` ` ` `# function calling ` ` ` `print` `(nthTerm(N)) ` ` ` `# This code is contributed by ANKITRAI1 ` |

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## C#

`// C# program to find Nth number ` `using` `System; ` ` ` `// calculate Nth term of this series ` `class` `GFG ` `{ ` `public` `int` `nthTerm(` `int` `N) ` `{ ` ` ` `// By using above formula ` ` ` `return` `(N * N * N) + (N * N) + N; ` `} ` ` ` `// Driver Code ` `public` `static` `void` `Main() ` `{ ` ` ` `int` `N = 3; ` ` ` `GFG a = ` `new` `GFG(); ` ` ` ` ` `// call and print Nth term ` ` ` `Console.WriteLine(a.nthTerm(N)); ` `} ` `} ` ` ` `// This code is contributed ` `// by inder_verma. ` |

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## PHP

`<?php ` `// PHP program to find N-th term ` `// of the series: 3, 14, 38, 84... ` ` ` `// calculate Nth term of series ` `function` `nthTerm(` `$N` `) ` `{ ` ` ` `return` `(` `$N` `* ` `$N` `* ` `$N` `) + ` ` ` `(` `$N` `* ` `$N` `) + ` `$N` `; ` `} ` ` ` `// Driver Code ` `$N` `= 3; ` ` ` `echo` `nthTerm(` `$N` `); ` ` ` `// This code is contributed ` `// by Shivi_Aggarwal ` `?> ` |

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**Output:**

39

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