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 A323987 #15 Feb 11 2025 14:25:25 %S A323987 3,5,0,9,1,9,8,0,7,1,7,8,4,1,0,9,6,7,5,6,5,7,3,6,7,1,5,9,9,6,9,5,3,0, %T A323987 5,8,3,6,2,5,7,3,1,5,3,6,2,0,9,6,1,7,4,0,6,5,2,3,8,4,8,9,7,8,3,4,5,4, %U A323987 7,1,9,1,3,8,7,9,0,5,9,1,7,7,9,8,5,9,0,9,0,9,8,8,3,2,3,3,9,1,4,7,0,6,6,6,6,3,3,2,8,5,8 %N A323987 Decimal expansion of exp(-Pi/3). %H A323987 Robert G. Wilson v, <a href="/A323987/b323987.txt">Table of n, a(n) for n = 0..1000</a> %H A323987 H. S. Uhler, <a href="http://www.jstor.org/stable/2972387">On the numerical value of i^i</a>, Amer. Math. Monthly, 28 (1921), 114-116. %H A323987 <a href="/index/Tra#transcendental">Index entries for transcendental numbers</a>. %e A323987 0.3509198071784109675657367159969530583625731536209617406523848978345471913879... %t A323987 RealDigits[Exp[-Pi/3], 10, 111][[1]] (* _Robert G. Wilson v_, Feb 16 2019 *) %Y A323987 Cf. A323982, A323983, A323984, A323985, A323986. %K A323987 nonn,cons %O A323987 0,1 %A A323987 _N. J. A. Sloane_, Feb 11 2019 %E A323987 Corrected and extended by _Robert G. Wilson v_, Feb 16 2019