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 A116107 #8 Jul 21 2021 22:46:45 %S A116107 52,63716866,48793687600063875363014809897052, %T A116107 60020753655608135708762056127156,60446518621981165303188950156776, %U A116107 71135436903815748345367595855336,72876856643103028189103298533248 %N A116107 Numbers k such that k concatenated with k-8 gives the product of two numbers which differ by 7. %C A116107 Also numbers n such that n concatenated with n-2 gives the product of two numbers which differ by 5. %e A116107 63716866//63716864 = 79822843 * 79822848, where // denotes concatenation. %Y A116107 Cf. A116099, A116106, A115429, A116112, A116238, A115426, A116146, A116276. %K A116107 nonn,base %O A116107 1,1 %A A116107 _Giovanni Resta_, Feb 06 2006 %E A116107 Edited by _N. J. A. Sloane_, Apr 15 2007