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 A116234 #2 Mar 30 2012 17:40:40 %S A116234 75,3940697271069731588503127963131864400305034239, %T A116234 4151390954867901940837042502762708788079731026, %U A116234 4640791465716781132715600310864305127175798261 %N A116234 n times n+3 gives the concatenation of two numbers m and m-8. %e A116234 75 * 78 = 58//50, where // denotes concatenation. %Y A116234 Cf. A116103, A116233, A116235, A116241. %K A116234 nonn,base %O A116234 1,1 %A A116234 _Giovanni Resta_, Feb 06 2006