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 A020789 #25 Jul 08 2025 07:50:57
%S A020789 1,7,6,7,7,6,6,9,5,2,9,6,6,3,6,8,8,1,1,0,0,2,1,1,0,9,0,5,2,6,2,1,2,2,
%T A020789 5,9,8,2,1,2,0,8,9,8,4,4,2,2,1,1,8,5,0,9,1,4,7,0,8,4,9,6,7,2,4,8,8,4,
%U A020789 1,5,5,9,8,0,7,7,6,3,3,7,9,8,5,6,2,9,8,4,4,1,7,9,0,9,5,5,1,9,6
%N A020789 Decimal expansion of 1/sqrt(32).
%C A020789 Equals 0.176777... = 5*sqrt(2)/40, which is a tenth of sum_{n = 1 .. infinity} n^2*binomial(2n, n)/8^n [D. H. Lehmer, Am. Math. Monthly 92 (1985) 449]. - _R. J. Mathar_, Mar 04 2009
%H A020789 Ivan Panchenko, <a href="/A020789/b020789.txt">Table of n, a(n) for n = 0..1000</a>
%H A020789 Albert Einstein, <a href="http://www.lorentz.leidenuniv.nl/history/Einstein_archive/Einstein_1925_manuscript/Pages/Einstein_1925_15a.html">Quantum theory of monatomic ideal gases</a> (coefficient appears as 0.1768 in the first formula)
%H A020789 <a href="/index/Al#algebraic_02">Index entries for algebraic numbers, degree 2</a>
%e A020789 0.176776695296636881100211090526212259821208984422118509147...
%t A020789 RealDigits[N[1/Sqrt[32], 200]] (* _Vladimir Joseph Stephan Orlovsky_, May 30 2010 *)
%K A020789 nonn,cons
%O A020789 0,2
%A A020789 _N. J. A. Sloane_