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 A019820 #24 Mar 20 2025 22:32:05 %S A019820 1,9,0,8,0,8,9,9,5,3,7,6,5,4,4,8,1,2,4,0,5,1,4,0,4,8,7,9,5,8,3,8,7,6, %T A019820 1,9,6,2,7,9,2,0,7,5,1,2,7,4,0,5,5,2,6,6,9,6,8,8,1,8,1,3,2,6,1,7,9,7, %U A019820 8,3,9,9,2,0,2,1,7,7,5,4,6,5,0,8,8,6,5,9,2,4,7,3,9,1,6,7,1,8,8 %N A019820 Decimal expansion of sine of 11 degrees. %C A019820 An algebraic number of degree 48 and denominator 2. - _Charles R Greathouse IV_, Aug 27 2017 %H A019820 Ivan Panchenko, <a href="/A019820/b019820.txt">Table of n, a(n) for n = 0..1000</a> %H A019820 <a href="/index/Al#algebraic_48">Index entries for algebraic numbers, degree 48</a>. %F A019820 Equals A019819 * A019898 + A019810 * A019889. - _R. J. Mathar_, Jan 27 2021 %t A019820 RealDigits[Sin[11*Pi/180],10,99][[1]] (* _Stefano Spezia_, Feb 09 2025 *) %o A019820 (PARI) sin(11*Pi/180) \\ _Charles R Greathouse IV_, Aug 27 2017 %Y A019820 Cf. A019810, A019819, A019889, A019898. %K A019820 nonn,cons %O A019820 0,2 %A A019820 _N. J. A. Sloane_