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 A116122 #8 Jul 20 2021 23:42:22 %S A116122 92185,1453156572932210152879253333913, %T A116122 3829098407015032018435618903285,1017438814759112270449904796121753809 %N A116122 Numbers k such that k concatenated with k-5 gives the product of two numbers which differ by 3. %e A116122 92185//92180 = 96012 * 96015, where // denotes concatenation. %Y A116122 Cf. A116110, A116121, A054214, A116128, A116253. %K A116122 nonn,base %O A116122 1,1 %A A116122 _Giovanni Resta_, Feb 06 2006