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 A101865 #3 Mar 30 2012 16:50:10 %S A101865 7,18,25,36,47,54,65,72,83,94,101,112,123,130,141,148,159,170,177,188, %T A101865 195,206,217,224,235,246,253,264,271,282,293,300,311,322,329,340,347, %U A101865 358,369,376,387,394,405,416,423,434,445,452,463,470,481,492,499,510,517,528,539 %N A101865 Third row of A101858. %K A101865 nonn %O A101865 1,1 %A A101865 _N. J. A. Sloane_, Jan 28 2005