# 1729 followers problem (a bit late may be)

**Calculus**Level 5

\[\large\sum_{x=1}^{1729} \left[\Gamma\left(\dfrac{1+2x}{2}\right)\Gamma\left(\dfrac{1-2x}{2}\right)\right]\]

Simplify the above summation and give your answer to correct four decimal places.

**Clarification:** \([\cdot]\) does **not** denote greatest integer function; they are just square brackets. Also, \(\Gamma(n)\) is the gamma function .

**Bonus Question:** Find the value of \[\displaystyle\sum_{x=1}^{1730} \left[\Gamma\left(\dfrac{1+2x}{2}\right)\Gamma\left(\dfrac{1-2x}{2}\right)\right].\]