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 A118855 #7 Mar 30 2012 18:50:54 %S A118855 2,8,24,636,12318,13446,32396,46206,133788,162926,181428,359906, %T A118855 439098,453168,485238,508200,739024,840852,1007580,1410120,1577066, %U A118855 2056076,2126134,2422566,2512406,3275832,3307848,3457758,4481014,4698784 %N A118855 Even terms in A118854. %Y A118855 Cf. A057475, A118854. %K A118855 nonn,more %O A118855 1,1 %A A118855 _Reinhard Zumkeller_, May 02 2006 %E A118855 a(9)-a(30) from _Donovan Johnson_, Dec 26 2010