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 A087714 #9 May 05 2021 11:01:45
%S A087714 5,13,19,367
%N A087714 Primes p = prime(i) such that p(i)# - p(i+1) and p(i)# + p(i+1) are both primes, where p# = A002110.
%C A087714 Conjecture: there are only 4 primes in this sequence.
%e A087714 2*3*5-7 = 23 is prime, 2*3*5+7 = 37 is prime.
%o A087714 (PARI) isok(p) = {if (isprime(p), my(pp = prod(k=1, primepi(p), prime(k)), q = nextprime(p+1)); isprime(pp-q) && isprime(pp+q););} \\ _Michel Marcus_, Sep 20 2019
%o A087714 (PARI) my(pr=1); forprime(p=1, , pr=pr*p; if(ispseudoprime(pr-nextprime(p+1)) && ispseudoprime(pr+nextprime(p+1)), print1(p, ", "))) \\ _Felix Fröhlich_, Sep 20 2019
%Y A087714 Cf. A087715, A087716, A087728.
%Y A087714 Cf. A002110.
%K A087714 nonn,more
%O A087714 1,1
%A A087714 _Pierre CAMI_, Sep 28 2003