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 A019885 #19 Jul 08 2025 07:42:00 %S A019885 9,7,0,2,9,5,7,2,6,2,7,5,9,9,6,4,7,2,3,0,6,3,7,7,8,7,4,0,3,3,9,9,0,3, %T A019885 7,7,6,3,2,2,6,0,8,5,2,4,4,3,0,8,2,9,1,5,6,5,6,5,8,8,7,6,2,3,2,3,5,5, %U A019885 5,7,3,5,8,3,6,6,3,0,9,2,9,6,5,5,4,4,2,9,2,2,4,4,5,3,1,9,3,2,2 %N A019885 Decimal expansion of sine of 76 degrees. %C A019885 Equals sin(19*Pi/45). - _Wesley Ivan Hurt_, Sep 01 2014 %C A019885 An algebraic number of degree 24 and denominator 2. - _Charles R Greathouse IV_, Nov 06 2017 %H A019885 Ivan Panchenko, <a href="/A019885/b019885.txt">Table of n, a(n) for n = 0..1000</a> %H A019885 <a href="/index/Al#algebraic_24">Index entries for algebraic numbers, degree 24</a> %F A019885 Equals 2*A019847*A019861. - _R. J. Mathar_, Jan 17 2021 %e A019885 0.970295726275996472306377874033990377632260852443082915656588... %p A019885 Digits:=100: evalf(sin(19*Pi/45)); # _Wesley Ivan Hurt_, Sep 01 2014 %t A019885 RealDigits[Sin[76 Degree],10,120][[1]] (* _Harvey P. Dale_, Dec 29 2013 *) %o A019885 (PARI) sin(19/45*Pi) \\ _Charles R Greathouse IV_, Nov 06 2017 %K A019885 nonn,cons %O A019885 0,1 %A A019885 _N. J. A. Sloane_