PermutationPower
PermutationPower[perm, n] gives the nth permutation power of the permutation perm.
Examples
Square of a permutation:
PermutationPower[Cycles[{{1, 2, 3}}], 2]
(* Cycles[{{1, 3, 2}}] *)Cube returns identity:
PermutationPower[Cycles[{{1, 2, 3}}], 3]
(* Cycles[{}] *)Negative power:
PermutationPower[Cycles[{{1, 2, 3}}], -1]
(* Cycles[{{1, 3, 2}}] *)Please visit the official Wolfram Language Reference for more details.