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 A019865 #15 Aug 21 2023 11:49:09 %S A019865 8,2,9,0,3,7,5,7,2,5,5,5,0,4,1,6,9,2,0,0,6,3,3,6,8,4,1,5,0,1,6,4,2,0, %T A019865 2,6,3,2,9,0,7,0,2,1,2,1,6,5,6,2,5,3,4,4,8,9,4,5,7,9,6,6,8,3,2,3,9,7, %U A019865 1,9,0,0,0,3,2,1,2,5,7,7,7,0,7,8,9,4,3,6,5,6,5,6,4,1,4,9,6,7,8 %N A019865 Decimal expansion of sine of 56 degrees. %C A019865 An algebraic number of degree 24 and denominator 2. - _Charles R Greathouse IV_, Nov 05 2017 %H A019865 Ivan Panchenko, <a href="/A019865/b019865.txt">Table of n, a(n) for n = 0..1000</a> %H A019865 <a href="/index/Al#algebraic_24">Index entries for algebraic numbers, degree 24</a> %F A019865 Equals 2*A019837*A019871. - _R. J. Mathar_, Jan 17 2021 %e A019865 0.82903757... %o A019865 (PARI) sin(14/45*Pi) \\ _Charles R Greathouse IV_, Nov 05 2017 %K A019865 nonn,cons %O A019865 0,1 %A A019865 _N. J. A. Sloane_