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 A292069 #4 Sep 11 2017 12:04:04
%S A292069 601,346201,7282588256957615350925401,
%T A292069 615840114784814774501200690134862345946783236130283731411280186824640601,
%U A292069 4298038738591350241903359894361937263902417766066948735111854394786520954312466554848504069671001
%N A292069 Primes of the form (24^k - 1) / 23.
%t A292069 Select[Table[(24^k - 1) / 23, {k, 0, 100}], PrimeQ[#] &]
%Y A292069 Cf. A127998.
%K A292069 nonn
%O A292069 1,1
%A A292069 _Robert Price_, Sep 08 2017