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 A019922 #17 Sep 06 2025 08:11:18 %S A019922 4,4,5,2,2,8,6,8,5,3,0,8,5,3,6,1,6,3,9,2,2,3,6,7,0,3,0,6,4,5,6,6,5,7, %T A019922 5,4,9,8,7,4,3,0,6,7,8,4,2,7,9,2,6,5,1,6,5,5,6,2,7,0,1,8,7,0,0,0,5,2, %U A019922 8,5,5,7,3,3,3,7,8,8,3,4,9,5,1,0,8,1,6,3,7,5,0,4,3,5,1,8,5,7,6 %N A019922 Decimal expansion of tangent of 24 degrees. %C A019922 Also the decimal expansion of cotangent of 66 degrees. - _Mohammad K. Azarian_, Jun 30 2013 %H A019922 Ivan Panchenko, <a href="/A019922/b019922.txt">Table of n, a(n) for n = 0..1000</a> %H A019922 Wikipedia, <a href="http://en.wikipedia.org/wiki/Exact_trigonometric_constants">Exact trigonometric constants</a> %H A019922 <a href="/index/Al#algebraic_08">Index entries for algebraic numbers, degree 8</a> %F A019922 Equals A019833 / A019875. - _R. J. Mathar_, Sep 06 2025 %e A019922 tan(2*Pi/15) = 0.44522868... %t A019922 RealDigits[Tan[24 Degree],10,120][[1]] (* _Harvey P. Dale_, Feb 19 2024 *) %K A019922 nonn,cons,changed %O A019922 0,1 %A A019922 _N. J. A. Sloane_