DLMF:8.19.E7
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Math Formula Information
Formula: Failed to parse (unknown function "\genexpintE"): {\displaystyle \genexpintE{n}@{z}=\frac{(-z)^{n-1}}{(n-1)!}\expintE@{z}+\frac{e^{-z}}{(n-1)!}\sum_{k=0}^{n-2}(n-k-2)!(-z)^{k},}
Name: DLMF:8.19.E7
Description:
Data Source
https://lct.wmflabs.org/w/index.php?title=Special:EntityPage/Q2693