Geodesic
Two-sided estimates of the central binomial coefficient
Čelâbinskij fiziko-matematičeskij žurnal, Tome 5 (2020) no. 1, pp. 56-69.

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The previous two-sided estimates of the central binomial coefficient are strengthened. The established boundaries are sufficiently exact. They act immediately on the sequence $C_ {2n} ^ n$ for all numbers $n\in\mathbb{N}$. The results can be used in mathematical analysis, combinatorics and probability theory.
Keywords: combinatorial values, central binomial coefficient, two-sided estimates, asymptotic expansion, enveloping series. 
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A. Yu. Popov. Two-sided estimates of the central binomial coefficient. Čelâbinskij fiziko-matematičeskij žurnal, Tome 5 (2020) no. 1, pp. 56-69. http://geodesic.mathdoc.fr/item/CHFMJ_2020_5_1_a4/

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