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 A276813 #18 Oct 12 2016 09:55:40 %S A276813 2,1,1,8,1,4,2,2,16,3,3,1,3,1,1,2,1,1,3,1,3,3,5,1,13,1,4,1,1,13,4,3,1, %T A276813 4,1,1,6,5,9,1,13,2,15,1,2,3,3,1,4,9,2,14,1,4,1,7,1,1,11,1,4,5,2,3,2, %U A276813 1,14,1,1,2,1,1,1,1,20,3,2,1,2,2,7,1,2 %N A276813 Continued fraction for the ratio of the lowest two Dirichlet eigenvalues of the Laplacian within the regular pentagon. %C A276813 The eigenvalues of the Laplacian within the regular pentagon with Dirichlet boundary conditions are calculated to at least 1000 digits. The ratio of the second eigenvalue to the first is calculated and expressed as a continued fraction. The ratio has an advantage since it is independent of the pentagon area. All terms in this expansion are correct. %H A276813 Robert Stephen Jones, <a href="/A276813/b276813.txt">Table of n, a(n) for n = 1..978</a> %e A276813 2.52683872... = 2+1/(1+1/(1+1/(8+1/(1+...)))). %Y A276813 Cf. A262823. %K A276813 nonn,cofr %O A276813 1,1 %A A276813 _Robert Stephen Jones_, Sep 18 2016