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 A057188 #12 Oct 30 2017 04:31:49 %S A057188 3,5,13,43,79,101,107,227,353,7393,50287 %N A057188 Numbers n such that (22^n+1)/23 is a prime. %C A057188 Some of the larger terms may only correspond to probable primes. %C A057188 a(12) > 10^5 - _Robert Price_, Jun 02 2013 %H A057188 H. Dubner and T. Granlund, <a href="https://cs.uwaterloo.ca/journals/JIS/VOL3/DUBNER/dubner.html">Primes of the Form (b^n+1)/(b+1)</a>, J. Integer Sequences, 3 (2000), #P00.2.7. %o A057188 (PARI) isok(n) = (denominator(p=(22^n+1)/23)==1) && isprime(p); \\ _Michel Marcus_, Oct 30 2017 %K A057188 nonn,more %O A057188 1,1 %A A057188 _N. J. A. Sloane_, Sep 15 2000 %E A057188 a(11) from _Robert Price_, Jun 02 2013