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 A249510 #16 Jan 19 2019 16:30:19 %S A249510 2,13,775596313, %T A249510 567525075138663383127158192994765939404930668817780601409606090331861 %N A249510 Ménage primes. %C A249510 The fifth ménage prime has 30281 digits and is therefore too large to include here. %H A249510 Adam P. Goucher, <a href="https://cp4space.wordpress.com/2014/10/31/menage-primes/">Menage primes</a>, Complex Projective 4-Space. %e A249510 The fifth ménage number is 13, which is prime. %Y A249510 Intersection of A000040 (primes) with A000179 (ménage numbers). %Y A249510 Image of A249394 under A000179. %K A249510 nonn %O A249510 1,1 %A A249510 _Adam P. Goucher_, Oct 30 2014 %E A249510 Comment correction by _Hans Havermann_, Jan 19 2019