Source: wikibot/wolstenholme-number
= Wolstenholme number
{wiki=Wolstenholme_number}
Wolstenholme numbers are a special sequence of natural numbers related to combinatorial mathematics and number theory. Specifically, a Wolstenholme number \\(W_n\\) is defined as the binomial coefficient \\(\\binom\{2n\}\{n\}\\) for a given non-negative integer \\(n\\), which counts the number of ways to choose \\(n\\) items from a set of \\(2n\\) items.