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 A235147 #16 Sep 08 2022 08:46:06 %S A235147 2,41,43,61,67,83,89,401,409,421,431,433,439,443,449,457,461,463,479, %T A235147 487,491,499,601,607,617,619,631,641,643,653,673,683,691,809,821,823, %U A235147 839,857,881,4027,4057,4091,4093,4099,4111,4153,4157,4177,4217,4219,4229 %N A235147 Primes p such that (p reversed)+3 is also a prime. %H A235147 Vincenzo Librandi, <a href="/A235147/b235147.txt">Table of n, a(n) for n = 1..1000</a> %e A235147 43 is in the sequence because 34+3=37 is prime. %t A235147 Select[Prime[Range[6000]], PrimeQ[FromDigits[Reverse[IntegerDigits[#]]] + 3]&] %o A235147 (Magma) [p: p in PrimesUpTo(6000) | IsPrime(q+3) where q is Seqint(Reverse(Intseq(p)))]; %Y A235147 Cf. A165446, A166501, A167460, A167466, A167473. %K A235147 nonn,base %O A235147 1,1 %A A235147 _Vincenzo Librandi_, Jan 04 2014