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.
%I A153590 #13 Sep 08 2022 08:45:40
%S A153590 2,3,5,7,19,23,29,37,43,47,53,59,67,113,137,139,157,163,173,179,229,
%T A153590 239,257,263,293,313,349,353,359,373,379,419,449,467,499,503,509,547,
%U A153590 577,587,593,617,643,647,653,719,727,797,883,929,967,983,997,1013,1033,1049
%N A153590 Primes p such that p^2 + 3p + 1 is also prime.
%C A153590 Primes p such that (p*(p+1)) + (p+(p+1)) is prime. Primes p such that sum of product and the sum of p and the nextNumber is prime. - _Vladimir Joseph Stephan Orlovsky_, Mar 13 2010
%H A153590 Vincenzo Librandi, <a href="/A153590/b153590.txt">Table of n, a(n) for n = 1..1000</a>
%e A153590 For p = 2, p^2 + 3p + 1 = 11; p = 67, p^2 + 3p + 1 = 4691; for p = 419, p^2 + 3p + 1 = 176819.
%t A153590 Select[Table[Prime[n],{n,6!}], PrimeQ[#^2+3*#+1]&] (* _Vladimir Joseph Stephan Orlovsky_, Mar 13 2010 *)
%o A153590 (Magma) [ p: p in PrimesUpTo(1050) | IsPrime(p^2+3*p+1) ];
%Y A153590 Cf. A014574, A174242, A174243, A174244. - _Vladimir Joseph Stephan Orlovsky_, Mar 13 2010
%K A153590 nonn,easy
%O A153590 1,1
%A A153590 _Vincenzo Librandi_, Dec 29 2008
%E A153590 Edited and extended by _Klaus Brockhaus_, Jan 01 2009