JavaScript Tutorial Sum of the first nth term of Series
Your task is to write a function which returns the sum of the following series up to nth term(parameter).
Series: 1 + 1/4 + 1/7 + 1/10 + 1/13 + 1/16 +...
Rules:
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.
Examples:
SeriesSum(1) = 1 = "1.00"
SeriesSum(2) = 1 + 1/4 = "1.25"
SeriesSum(5) = 1 + 1/4 + 1/7 + 1/10 + 1/13 = "1.57"
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