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 A262823 #21 Apr 07 2017 13:01:28 %S A262823 1,0,9,9,6,4,2,7,0,8,4,5,5,9,8,0,6,6,4,8,3,7,6,2,1,7,3,5,2,4,3,4,6,5, %T A262823 0,6,4,1,8,3,3,3,5,9,9,9,5,6,3,2,3,7,8,9,4,5,8,0,8,2,5,8,7,5,5,7,6,3, %U A262823 6,7,7,2,4,3,3,4,2,4,6,4,6,7,6,8,6,9 %N A262823 Decimal expansion of lowest Dirichlet eigenvalue of Laplacian within the unit-edged regular pentagon. %C A262823 This is the lowest Dirichlet eigenvalue of the Helmholtz equation within the unit-edged regular pentagon. It has been calculated (RSJ, Sep 2015) to just over 1500 decimal digits. %H A262823 Robert Stephen Jones, <a href="/A262823/b262823.txt">Table of n, a(n) for n = 2..1504</a> %H A262823 Robert S. Jones, <a href="http://arxiv.org/abs/1602.08636">Computing ultra-precise eigenvalues of the Laplacian within polygons</a>, arXiv preprint arXiv:1602.08636, 2016 %H A262823 Colleen Lanz, <a href="http://scholar.lib.vt.edu/theses/available/etd-07082010-083729/unrestricted/Lanz_CB_T_2010.pdf">The use of Schwarz-Christoffel transformations in determining acoustic resonances</a>, Master's Thesis, Virgina Polytechnic Institute and State University, 2010. (See first entry in Table 8.2) %e A262823 10.996427084559806648376217352434650641833359995632378945808... %K A262823 nonn,cons %O A262823 2,3 %A A262823 _Robert Stephen Jones_, Oct 03 2015