Formula:8693

Digital Library of Mathematical Functions ID 27.2.E13

${\displaystyle{\displaystyle\lambda\left(n\right)=\begin{cases}1,&n=1,\\ (-1)^{a_{1}+\dots+a_{\nu\left(n\right)}},&n>1.\end{cases}}}$

Symbols List

• ${\displaystyle{\displaystyle\nu\left(\NVar{n}\right)}}$:
• ${\displaystyle{\displaystyle n}}$: positive integer
• ${\displaystyle{\displaystyle a}}$: primitive root
 

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