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 A116346 #2 Mar 30 2012 17:40:41 %S A116346 300,421,573,694,729,9856,36356,63638,970299,4545456,5454538,88235296, %T A116346 351069984,403018036,493927127,506072867,596981958,648930010, %U A116346 736842098,739839101,766233768,769230762,827751189,857142859 %N A116346 n times n+7 gives the concatenation of two numbers m and m+8. %Y A116346 Cf. A116215, A116340, A116345, A116347, A116353. %K A116346 nonn,base %O A116346 1,1 %A A116346 _Giovanni Resta_, Feb 06 2006