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 A118419 #11 Feb 16 2025 08:33:01 %S A118419 1282427,1282427129,128242712910062263, %T A118419 1282427129100622636875342568869791727767688927325001192063740021 %N A118419 Glaisher-primes: numbers n such that the concatenation of the first n decimal digits of the Glaisher-Kinkelin constant is prime. %H A118419 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/ConstantPrimes.html">Constant Primes</a> %H A118419 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/Glaisher-KinkelinConstantDigits.html">Glaisher-Kinkelin Constant Digits</a> %H A118419 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/IntegerSequencePrimes.html">Integer Sequence Primes</a> %e A118419 A = 1.282427129100622636..., 1282427--the concatenation of the first 7 decimal digits--is prime, so a(1)=1282427. %Y A118419 Cf. A074962, A118420. %K A118419 nonn,base %O A118419 1,1 %A A118419 _Eric W. Weisstein_, Apr 27 2006 %E A118419 Edited by _Charles R Greathouse IV_, Apr 27 2010