DLMF:26.7.E4
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Math Formula Information
Formula: Failed to parse (unknown function "\Bellnumber"): {\displaystyle \Bellnumber@{n}=\expe^{-1}\sum_{k=1}^{\infty}\frac{k^{n}}{k!}=1+\floor{\expe^{-1}\sum_{k=1}^{2n}\frac{k^{n}}{k!}}.}
Name: DLMF:26.7.E4
Description:
Data Source
https://lct.wmflabs.org/w/index.php?title=Special:EntityPage/Q7820