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 A103363 #6 Feb 16 2025 08:32:56 %S A103363 4,25,14,1229,9592,39249,664579,5761455,50847534,455052511 %N A103363 Reduced denominators of the fraction of primes < 10^n that are full reptend primes. %C A103363 A103362/A103363 is conjectured to approach Artin's constant A005596. %H A103363 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/FullReptendPrime.html">Full Reptend Prime</a> %F A103363 Denominator[A086018/A006880] %e A103363 1/4, 9/25, 5/14, 467/1229, 3617/9592, 14750/39249, ... %Y A103363 Cf. A005596, A006880, A086018, A103362. %K A103363 nonn,frac,hard,more %O A103363 1,1 %A A103363 _Eric W. Weisstein_, Feb 02 2005