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 A116298 #2 Mar 30 2012 17:40:40 %S A116298 6,699,776,790,867,42337,57657,96883,44121666,55878328,85298137, %T A116298 36680703009575609347721358493,63319296990424390652278641501, %U A116298 69346342454876071597336150481,81501115172242572470460459683 %N A116298 n times n+7 gives the concatenation of two numbers m and m+1. %e A116298 85298137 * 85298144 = 72757727//72757728, where // denotes %e A116298 concatenation. %Y A116298 Cf. A116167, A116291, A116297, A116299, A116311. %K A116298 nonn,base %O A116298 1,1 %A A116298 _Giovanni Resta_, Feb 06 2006