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 A079096 #12 Nov 28 2015 19:14:53 %S A079096 1,3,9,39,249,2559,5559,516069,10215759,233308629,6703001859, %T A079096 207263491989,7628001626799,311878265154009,13394639596824039, %U A079096 628284422185315449,33217442899375360179,1955977793053587999249 %N A079096 Erroneous version of A143293. %Y A079096 Cf. A002110, A003422. %K A079096 dead %O A079096 1,2