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 A185998 #8 Jan 11 2015 01:00:54 %S A185998 1,1,2,5,16,64,308,1727,11008,78244,611060,5184338,47366320,462782080, %T A185998 4807659368,52853722811,612426360832,7453621425532,94997205901940, %U A185998 1264555335831662,17540102647480336,252979919852470672,3786896497867089656,58733519954606892278,942372338052077455168 %N A185998 Expansion of 1/(1-x-x^2/(1-2x-3x^2/(1-4x-5x^2/(1-6x-7x^2/(1-8x-9x^2/(1-...)))))) (continued fraction). %C A185998 First column of A185997. Moment sequence for orthogonal polynomials of A185996. Hankel transform is A057863. %F A185998 G.f.: 1/(1-x/(1-x/(1-x/(1-3x/(1-x/(1-5x/(1-x/(1-7x/(1-x/(1-9x/(1-...))))))))))) (continued fraction). %Y A185998 Cf. A178119. %K A185998 nonn,easy %O A185998 0,3 %A A185998 _Paul Barry_, Feb 08 2011