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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A153767 Primes p such that 8*p - 9 is also prime.

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%I A153767 #14 Sep 08 2022 08:45:40
%S A153767 2,5,7,11,17,29,31,47,59,61,109,131,137,139,167,179,181,197,199,229,
%T A153767 251,269,277,281,307,337,347,367,379,397,419,421,449,467,479,491,521,
%U A153767 557,599,601,619,631,641,647,661,677,691,719,727,739,757,761,769,787,797
%N A153767 Primes p such that 8*p - 9 is also prime.
%H A153767 Vincenzo Librandi, <a href="/A153767/b153767.txt">Table of n, a(n) for n = 1..3000</a>
%e A153767 For p=31 (a prime), 8*p - 9 = 239 is also prime, so 31 is in the sequence.
%t A153767 Select[Prime[Range[150]], PrimeQ[8 # - 9]&] (* _Vincenzo Librandi_, Apr 04 2013 *)
%o A153767 (Magma) [p: p in PrimesUpTo(1000) | IsPrime(8*p-9)]; // _Vincenzo Librandi_, Apr 04 2013
%Y A153767 Cf. A153766.
%K A153767 nonn,easy
%O A153767 1,1
%A A153767 _Vincenzo Librandi_, Jan 01 2009
%E A153767 4 removed, extended by _R. J. Mathar_, Jan 07 2009