OFFSET
1,1
LINKS
Reinhard Zumkeller, Table of n, a(n) for n = 1..10000
MATHEMATICA
q[n_] := Module[{e = FactorInteger[n][[;; , 2]]}, Max[e] != Length[e]]; q[1] = False; Select[Range[120], q] (* Amiram Eldar, Sep 08 2024 *)
PROG
(Haskell)
import Data.List (findIndices)
a188654 n = a188654_list !! (n-1)
a188654_list = map (+ 1) $ findIndices (/= 0) a225230_list
(PARI) is(k) = {my(e = factor(k)[, 2]); #e && vecmax(e) != #e; } \\ Amiram Eldar, Sep 08 2024
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Reinhard Zumkeller, May 03 2013
STATUS
approved