Fraction With a Surprising Answer!

What is the value of this triangular fraction? What value does the fraction approach if the number of rows approaches infinity? Special thanks this month to: Lee Redden, Mike Robertson, Daniel Lewis, Robert Zarnke, Kyle. Thanks to all supporters on Patreon! Patreon: mindyourdecisions

Inspiration for problem
Twitter: 1512527469143805954
double factorial ratio
https://en.wikipedia.org/wiki/Wallis%...
WolframAlpha 1000!!/99!!
https://www.wolframalpha.com/input?i=...
WolframAlpha sqrt(pi * 500)
https://www.wolframalpha.com/input?i=...

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