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 A060708 #27 Feb 11 2025 14:52:58
%S A060708 0,7,0,4,7,7,0,9,2,3,0,1,0,4,5,7,9,7,2,4,6,7,5,9,8,5,2,0,8,8,6,8,1,5,
%T A060708 2,5,8,6,2,7,1,8,2,0,7,2,7,8,2,3,6,2,5,9,6,4,5,9,5,6,8,8,0,6,4,2,7,9,
%U A060708 4,1,6,9,4,6,8,8,7,0,4,4,8,0,7,7,3,4,4,4,3,1,9,2,9,2,4,3,4,2,4,6,1,5,3,2,6
%N A060708 The Reuleaux Triangle constant.
%D A060708 Steven R. Finch, Mathematical Constants, Encyclopedia of Mathematics and its Applications, vol. 94, Cambridge University Press, 2003, Section 8.10, p. 513.
%D A060708 Martin Gardner, "The Unexpected Hanging," page 215.
%D A060708 Clifford A. Pickover, The Math Book, Sterling Publishing Co. (New York), 2009, p. 266.
%H A060708 Harry J. Smith, <a href="/A060708/b060708.txt">Table of n, a(n) for n = 1..20000</a>
%H A060708 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/ReuleauxTriangle.html">Reuleaux Triangle</a>.
%H A060708 Wikipedia, <a href="https://en.wikipedia.org/wiki/Reuleaux_triangle#Extremal_measures">Reuleaux triangle</a>.
%H A060708 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>.
%F A060708 Equals (Pi - sqrt(3))/2.
%e A060708 0.704770923010457972467598520886815258627182072782362596459568806427941... [_Harry J. Smith_, Jul 09 2009]
%t A060708 RealDigits[N[(Pi - Sqrt[3])/2, 100]][[1]]
%o A060708 (PARI) { default(realprecision, 20080); x=(Pi - sqrt(3))/2; for (n=1, 20000, d=floor(x); x=(x-d)*10; write("b060708.txt", n, " ", d)); } \\ _Harry J. Smith_, Jul 09 2009
%Y A060708 Cf. A060709.
%K A060708 nonn,cons
%O A060708 1,2
%A A060708 _Robert G. Wilson v_, Feb 05 2001
%E A060708 Final digits of sequence corrected using the b-file. - _N. J. A. Sloane_, Aug 30 2009