Sum of the first nth term of a series

Language: Python

Task:

This task was to write a function which returns the sum of following series upto nth term(parameter).

Series: 1 + 1/4 + 1/7 + 1/10 + 1/13 + 1/16 +…

Parameters:

  • You need to round the answer to 2 decimal places and return it as String.
  • If the given value is 0 then it should return 0.00
  • You will only be given Natural Numbers as arguments.