End row of numbers - 1
Problem
Given a natural number
N. Write a program that calculates the first
N factors of the following expression:
\(P = {2 \over 3}\cdot{4 \over 5}\cdot{6 \over 7}\ cdot ... \cdot {{2 \cdot N} \over {2\cdot N +1}}\)
Input
The input is a natural number
N.
Imprint
Output the answer to the problem
Examples
| # |
Input |
Output |
| 1 |
42 |
0.135542 |