|
%I #7 Dec 15 2017 17:36:29
%S 15,34,35,51,57,74,91,95,121,122,123,129,134,142,143,155,161,169,183,
%T 209,213,214,218,219,221,235,237,247,253,265,274,291,299,301,305,314,
%U 319,321,323,326,327,329,334,341,361,362,381,382,391,394,395,403,407
%N Semiprimes whose sum of the squares of the digits is also a semiprime.
%H Harvey P. Dale, <a href="/A085803/b085803.txt">Table of n, a(n) for n = 0..1000</a>
%t Select[Range[500],PrimeOmega[#]==PrimeOmega[Total[IntegerDigits[#]^2]] == 2&] (* _Harvey P. Dale_, Oct 03 2012 *)
%Y Cf. A001358.
%K base,nonn
%O 0,1
%A _Jason Earls_, Jul 24 2003
|
