OFFSET
1
LINKS
Antti Karttunen, Table of n, a(n) for n = 1..65537
FORMULA
MATHEMATICA
a[n_] := If[AnyTrue[FactorInteger[n/2^IntegerExponent[n, 2]][[;; , 2]], # > 1 &], 1, 0]; Array[a, 100] (* Amiram Eldar, Jul 24 2022 *)
PROG
(PARI) A353626(n) = !issquarefree(n>>valuation(n, 2));
CROSSREFS
KEYWORD
nonn
AUTHOR
Antti Karttunen, May 02 2022
STATUS
approved