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 A116325 #2 Mar 30 2012 17:40:40 %S A116325 2,3,29,66,739,893,755004,789546,3643103,6356892,9084165, %T A116325 405460897734702723,416974886220714237,583025113779285758, %U A116325 594539102265297272,920312382883217575,931826371369229089 %N A116325 n times n+6 gives the concatenation of two numbers m and m+5. %e A116325 9084165 * 9084171 = 8252210//8252215, where // denotes %e A116325 concatenation. %Y A116325 Cf. A116194, A116318, A116324, A116326, A116339. %K A116325 nonn,base %O A116325 1,1 %A A116325 _Giovanni Resta_, Feb 06 2006