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 A020805 #37 Feb 18 2018 12:13:58 %S A020805 1,4,4,3,3,7,5,6,7,2,9,7,4,0,6,4,4,1,1,2,7,2,8,7,1,9,5,1,2,5,4,8,9,3, %T A020805 6,3,9,1,1,9,0,0,4,3,7,8,1,7,5,3,1,7,1,9,0,0,4,6,5,0,5,8,1,6,2,0,9,9, %U A020805 4,4,1,8,0,7,5,7,3,3,3,3,6,4,2,3,4,2,8,8,4,8,8,9,6,4,3,7,3,8,1 %N A020805 Decimal expansion of 1/sqrt(48). %C A020805 Or 1/(4 sqrt(3)), which should look familiar to anyone who has studied Ramanujan's approximation for the partition numbers (see Conway and Guy). - _Alonso del Arte_, May 19 2011 %C A020805 This constant is the ratio of the area (A) to the perimeter (P) of an equilateral triangle with unit side, A/P = 1/(4 sqrt(3)). - _José de Jesús Camacho Medina_, Feb 09 2018 %D A020805 J. H. Conway and R. K. Guy, The Book of Numbers, Copernicus Press, NY, 1996, p. 95. %H A020805 Ivan Panchenko, <a href="/A020805/b020805.txt">Table of n, a(n) for n = 0..1000</a> %H A020805 Steven Finch, <a href="/A000219/a000219_1.pdf">Integer Partitions</a>, September 22, 2004. [Cached copy, with permission of the author] %e A020805 0.1443375672974... %t A020805 RealDigits[1/Sqrt[48], 10, 100][[1]] (* _Alonso del Arte_, May 19 2011 *) %o A020805 (PARI) sqrt(1/48) %K A020805 nonn,cons,easy %O A020805 0,2 %A A020805 _N. J. A. Sloane_