# Find Nth term of the series 0, 6, 0, 12, 0, 90…

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

0, 6, 0, 12, 0, 90…

**Examples:**

Input :N = 4Output :12 For N = 4 Nth term = abs( 4 * ((4-1) * (4-3) * (4-5)) ); = 12Input :N = 6Output :90

We can generalize the Nth term of the above series as:

Nth term = abs( N * ((N-1) * (N-3) * (N-5)) )

Below is the implementation of the above approach:

## C++

`// CPP program to find N-th term of the series ` `// 0, 6, 0, 12, 0, 90... ` ` ` `#include <iostream> ` `using` `namespace` `std; ` ` ` `// Function to return the Nth term ` `int` `nthTerm(` `int` `N) ` `{ ` ` ` `return` `abs` `(N * ((N - 1) * (N - 3) * (N - 5))); ` `} ` ` ` `// Driver code ` `int` `main() ` `{ ` ` ` `int` `N = 6; ` ` ` ` ` `cout << nthTerm(N); ` ` ` ` ` `return` `0; ` `} ` |

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## Java

`// Java program to find N-th term of the series ` `// 0, 6, 0, 12, 0, 90... ` ` ` `import` `java.io.*; ` `import` `java.lang.*; ` ` ` `class` `GFG { ` ` ` `// Function to calculate Nth term of ` ` ` `// the series ` ` ` `public` `static` `int` `nthTerm(` `int` `N) ` ` ` `{ ` ` ` `// By using above formula ` ` ` `return` `Math.abs(N * ((N - ` `1` `) * (N - ` `3` `) * (N - ` `5` `))); ` ` ` `} ` ` ` ` ` `// Driver code ` ` ` `public` `static` `void` `main(String[] args) ` ` ` `{ ` ` ` `int` `N = ` `6` `; ` `// Nth term is 6 ` ` ` ` ` `System.out.println(nthTerm(N)); ` ` ` `} ` `} ` |

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## Python3

`# Python3 program to find N-th ` `# term of the series ` `# 0, 6, 0, 12, 0, 90... ` ` ` `# Function to return the Nth term ` `def` `nthTerm(N) : ` ` ` ` ` `return` `(` `abs` `(N ` `*` `((N ` `-` `1` `) ` `*` `(N ` `-` `3` `) ` ` ` `*` `(N ` `-` `5` `)))) ` ` ` `# Driver code ` `if` `__name__ ` `=` `=` `"__main__"` `: ` ` ` ` ` `N ` `=` `6` ` ` ` ` `# Function calling ` ` ` `print` `(nthTerm(N)) ` ` ` ` ` `# This code is contributed by ` `# ANKITRAI1 ` |

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## C#

`// C# program to find N-th term of the series ` `// 0, 6, 0, 12, 0, 90... ` ` ` `using` `System; ` ` ` `class` `GFG { ` ` ` `// Function to calculate Nth term of ` ` ` `// the series ` ` ` `public` `static` `int` `nthTerm(` `int` `N) ` ` ` `{ ` ` ` `// By using above formula ` ` ` `return` `Math.Abs(N * ((N - 1) * (N - 3) * (N - 5))); ` ` ` `} ` ` ` ` ` `// Driver code ` ` ` `public` `static` `void` `Main() ` ` ` `{ ` ` ` `int` `N = 6; ` `// Nth term is 6 ` ` ` ` ` `Console.WriteLine(nthTerm(N)); ` ` ` `} ` `} ` `// This code is contributed by anuj_67. ` |

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## PHP

`<?php ` `// PHP program to find ` `// N-th term of the series ` `// 0, 6, 0, 12, 0, 90... ` ` ` `// Function to return the Nth term ` `function` `nthTerm( ` `$N` `) ` `{ ` ` ` `return` `abs` `(` `$N` `* ((` `$N` `- 1) * ` ` ` `(` `$N` `- 3) * (` `$N` `- 5))); ` `} ` ` ` `// Driver code ` `$N` `= 6; ` ` ` `echo` `nthTerm(` `$N` `); ` ` ` `// This code is contributed ` `// by inder_verma.. ` `?> ` |

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**Output:**

90

**Time Complexity**: O(1)

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