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 A116332 #3 Mar 30 2012 17:40:40 %S A116332 7041,487249777146,512750222848,684330069117 %N A116332 n times n+7 gives the concatenation of two numbers m and m+6. %e A116332 7041 * 7048 = 4962//4968, where // denotes concatenation. %Y A116332 Cf. A116147, A116326, A116331, A116333, A116340. %K A116332 nonn,base %O A116332 1,1 %A A116332 _Giovanni Resta_, Feb 06 2006