LiouvilleLambda

LiouvilleLambda[n] gives the Liouville function λ(n).

Examples

Calculate the Liouville function:

LiouvilleLambda[12]
(* 1 *)

For prime numbers, λ(p) = -1:

LiouvilleLambda[7]
(* -1 *)

Table of Liouville values:

Table[LiouvilleLambda[n], {n, 1, 20}]

Please visit the official Wolfram Language Reference for more details.