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%I #18 Sep 08 2022 08:44:47
%S 14723,20123,54713,109433,594653,604883,676493,759953,847103,935843,
%T 1035743,1049603,1079033,1099823,1222253,1263323,1499153,1754033,
%U 1835003,1893173,2017283,2071493,2099213,2199653,2895743,2998313,3389693,4133663
%N Primes that remain prime through 5 iterations of function f(x) = 2x + 7.
%C Primes p such that 2*p+7, 4*p+21, 8*p+49, 16*p+105 and 32*p+217 are also primes. - _Vincenzo Librandi_, Aug 04 2010
%H John Cerkan, <a href="/A023333/b023333.txt">Table of n, a(n) for n = 1..10000</a>
%F a(n) == 23 (mod 30). - _John Cerkan_, Oct 10 2016
%o (Magma) [n: n in [1..5000000] | IsPrime(n) and IsPrime(2*n+7) and IsPrime(4*n+21) and IsPrime(8*n+49) and IsPrime(16*n+105) and IsPrime(32*n+217)] // _Vincenzo Librandi_, Aug 04 2010
%Y Subsequence of A023206, A023244, A023275, A023305, and A105760.
%K nonn
%O 1,1
%A _David W. Wilson_
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