%I #16 Sep 08 2022 08:45:40
%S 23,37,41,43,59,73,79,83,109,113,127,137,151,163,197,199,223,227,229,
%T 233,239,251,263,269,283,313,337,349,373,383,389,409,421,449,457,463,
%U 479,523,557,599,617,647,691,727,739,743,751,757,761,773,797,811,821
%N Primes p such that p + 9699690 is also prime, 9699690 = 2*3*5*7*11*13*17*19.
%H G. C. Greubel, <a href="/A154114/b154114.txt">Table of n, a(n) for n = 1..2000</a>
%F a(n) >> n log^2 n. - _Charles R Greathouse IV_, Sep 02 2016
%t lst={};Do[p=Prime[n];If[PrimeQ[p+9699690],AppendTo[lst,p]],{n,6!}];lst
%t Select[Prime[Range[200]],PrimeQ[#+9699690]&] (* _Harvey P. Dale_, Apr 26 2011 *)
%o (Magma) [p: p in PrimesUpTo(1000) | IsPrime(p+9699690)]; // _Vincenzo Librandi_, Sep 02 2016
%o (PARI) is(n)=isprime(n+9699690) && isprime(n) \\ _Charles R Greathouse IV_, Sep 02 2016
%Y Cf. A049482, A049485, A049481.
%K nonn
%O 1,1
%A _Vladimir Joseph Stephan Orlovsky_, Jan 04 2009