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 A116146 #6 Jul 20 2021 23:44:59 %S A116146 47,550,802,570035,623387,1327222,4041011,8252210,164398539591831062, %T A116146 173868055738777586,339918283297349107,353476744122425611, %U A116146 846974882088186070,868300386379144450,1875603455546506870 %N A116146 Numbers k such that k concatenated with k-2 gives the product of two numbers which differ by 8. %e A116146 8252210//8252208 = 9084164 * 9084172, where // denotes concatenation. %Y A116146 Cf. A116139, A116107, A116147, A116161, A116277. %K A116146 nonn,base %O A116146 1,1 %A A116146 _Giovanni Resta_, Feb 06 2006