OFFSET
1,2
MATHEMATICA
radQ[n_]:=Or[n==1, GCD@@FactorInteger[n][[All, 2]]==1];
Select[Range[200], OddQ[#]&&radQ[#]&]
PROG
(PARI) isok(n) = (n==1) || ((n % 2) && !ispower(n)); \\ Michel Marcus, Jun 08 2018
(Magma) [1] cat [n : n in [3..200 by 2] | not IsPower(n) ]; // Vincenzo Librandi, Jul 06 2018
CROSSREFS
KEYWORD
nonn
AUTHOR
Gus Wiseman, Jun 07 2018
STATUS
approved