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 A116318 #2 Mar 30 2012 17:40:40 %S A116318 32,63,45211540,54788455,78317867,72388446037855609175404257, %T A116318 73247326752475247326752672,75267524732673267524732472, %U A116318 76126405447292905676080887,42053270820132695893502981749303 %N A116318 n times n+6 gives the concatenation of two numbers m and m+4. %e A116318 78317867 * 78317873 = 61336887//61336891, where // denotes %e A116318 concatenation. %Y A116318 Cf. A116187, A116304, A116317, A116319, A116325. %K A116318 nonn,base %O A116318 1,1 %A A116318 _Giovanni Resta_, Feb 06 2006