OFFSET
1,1
LINKS
Zak Seidov, Table of n, a(n) for n = 1..1000
MATHEMATICA
Reap[Do[If[! PrimeQ[n], fl = Flatten[Table[#[[1]], {#[[2]]}] & /@ FactorInteger[n]]; Sow[fl[[-1]]*fl[[-2]]]], {n, 4, 1200}]][[2, 1]]; (* Zak Seidov, Mar 18 2013 *)
gsd[n_]:=Max[Select[Divisors[n], PrimeOmega[#]==2&]]; gsd/@Select[Range[ 200], CompositeQ] (* Harvey P. Dale, May 08 2022 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Reinhard Zumkeller, Oct 12 2003
STATUS
approved