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 A076030 #7 Mar 02 2015 02:55:04 %S A076030 1,4,12,210,4290,42840,4037880,73628100,17226649440,422630873280, %T A076030 37569227295600,25278012283043520,37342441057521600, %U A076030 1860812172555592576320,6714127941651376646400,13782919836150390515990400,1090799084645723774857536000 %N A076030 Square roots of products of members of groups in A076031. %C A076030 a(n) = A076029(n)^(1/2). %Y A076030 Cf. A076027, A076028, A076029, A076031. %K A076030 nonn %O A076030 1,2 %A A076030 _Amarnath Murthy_, Oct 01 2002 %E A076030 Corrected and extended by _Hans Havermann_, Nov 09 2002