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%I #12 Sep 08 2022 08:45:47
%S 2,5,7,11,13,17,19,23,31,37,41,43,53,59,61,67,71,73,89,101,103,107,
%T 109,113,127,131,139,149,151,157,163,167,179,181,193,197,199,211,223,
%U 229,233,239,241,251,257,269,271,283,293,307,311,313,331,337,347,359,373
%N Primes p such that 3+2*(sum of digits of p) is also a prime
%H Bruno Berselli, <a href="/A165439/b165439.txt">Table of n, a(n) for n = 1..1000</a>
%e 331 is in the sequence because 3+3+1=7 and 2*7+3=17 is prime.
%t Select[Prime[Range[200]],PrimeQ[2 Total[IntegerDigits[#]]+3]&] (* _Harvey P. Dale_, Jul 14 2011 *)
%o (Magma) [ p: p in PrimesUpTo(400) | IsPrime(q) where q is 3+2*(&+Intseq(p))]; // Bruno Berselli, Jul 15 2011
%Y Cf. A165440, A007605.
%K nonn,base
%O 1,1
%A _Vincenzo Librandi_, Sep 19 2009
%E Keyword:base added by _R. J. Mathar_, Oct 12 2009
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