%N Semiprimes with prime sum of digits.
%C 34 is the smallest term in common with A108605. Cf. A001358 semiprimes, A101605 3-almost primes, A108605 semiprimes with prime sum of factors, A108607 intersection of A108605 and A108606.
%e 34=2*17 (semiprime) and 2+17=19 is prime.
%t A108606=Select[Range, Plus@@(Transpose[FactorInteger[ # ]])[]==2&& PrimeQ[Plus@@IntegerDigits[ # ]]&]
%Y Cf. A001358, A101605, A108606, A108607.
%A _Zak Seidov_, Jun 12 2005