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 A116299 #2 Mar 30 2012 17:40:40 %S A116299 40,53,40354307,59645686,39704957106129738595969799927610, %T A116299 44505281604832422780051712184759,45053875613995255103944518907119, %U A116299 54946124386004744896055481092874,55494718395167577219948287815234 %N A116299 n times n+8 gives the concatenation of two numbers m and m+1. %e A116299 59645686 * 59645694 = 35576083//35576084, where // denotes %e A116299 concatenation. %Y A116299 Cf. A116168, A116292, A116298, A116300, A116305. %K A116299 nonn,base %O A116299 1,1 %A A116299 _Giovanni Resta_, Feb 06 2006