OFFSET
1,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
MATHEMATICA
fpnQ[n_]:=Module[{f=FactorInteger[n]}, AllTrue[Flatten[Join[{Length[f], f[[All, 2]]}]], PrimeQ]]; Select[Range[3300], fpnQ] (* The program uses the AllTrue function from Mathematica version 10 *) (* Harvey P. Dale, Dec 01 2018 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Jon Wild, Feb 14 2006
STATUS
approved