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 A116134 #8 Jul 20 2021 23:44:08 %S A116134 92185,1453156572932210152879253333913, %T A116134 3829098407015032018435618903285,1017438814759112270449904796121753809 %N A116134 Numbers k such that k concatenated with k-3 gives the product of two numbers which differ by 1. %e A116134 92185//92182 = 96013 * 96014, where // denotes concatenation. %Y A116134 Cf. A116120, A115431, A116141, A116265. %K A116134 nonn,base %O A116134 1,1 %A A116134 _Giovanni Resta_, Feb 06 2006