OFFSET
1,1
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
FORMULA
EXAMPLE
7 is a term because 7 = 21/(2+1);
37 is a term because 37 = 111/(1+1+1).
MAPLE
MATHEMATICA
Select[#/Total[IntegerDigits[#]]&/@Select[Range[30000], PrimeOmega[#]==2&], PrimeQ] (* Harvey P. Dale, Aug 10 2023 *)
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Juri-Stepan Gerasimov, Apr 20 2010
EXTENSIONS
More terms from R. J. Mathar, Apr 26 2010
STATUS
approved