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 A266639 #6 Feb 06 2016 15:09:57 %S A266639 1,1,3,675,58604765625,11092415260481715750835418701171875, %T A266639 3137960908072825781252850621957535487873360037739990444983085932462881828541867434978485107421875 %N A266639 a(n) = A252738(n) / A191555(n). %F A266639 a(n) = A252738(n) / A191555(n). %o A266639 (Scheme) (define (A266639 n) (/ (A252738 n) (A191555 n))) %Y A266639 Cf. A191555, A252738, A267096. %K A266639 nonn %O A266639 1,3 %A A266639 _Antti Karttunen_, Feb 06 2016