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 A107394 #8 Oct 09 2013 09:33:28 %S A107394 6,30,90,210,420,756,1260,1980,2970,4290 %N A107394 C(n+2,2)*C(n+4,2). %C A107394 Duplicates A033487. %F A107394 a(n)=A033487(n+1). [From _R. J. Mathar_, Aug 24 2008] %e A107394 If n=0 then C(0+2,2)*C(0+4,2)= C(2,2)*C(4,2)=1*6=6 %e A107394 If n=4 then C(4+2,2)*C(4+4,2)= C(6,2)*C(8,2)=15*28=420 %Y A107394 Cf. A062196. %K A107394 dead %O A107394 0,1 %A A107394 _Zerinvary Lajos_, May 25 2005