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 A019847 #24 Aug 21 2023 11:47:09 %S A019847 6,1,5,6,6,1,4,7,5,3,2,5,6,5,8,2,7,9,6,6,8,8,1,1,0,9,2,8,4,3,6,5,5,6, %T A019847 2,8,2,5,0,9,3,0,8,7,1,5,1,5,2,1,0,3,2,5,9,8,6,2,7,3,7,5,6,5,6,7,6,3, %U A019847 7,2,0,3,3,6,3,2,5,1,2,3,6,0,3,1,2,8,2,8,8,0,5,3,7,1,6,4,0,7,5 %N A019847 Decimal expansion of sine of 38 degrees. %C A019847 This sequence is also decimal expansion of cosine of 52 degrees. - _Mohammad K. Azarian_, Jun 29 2013 %C A019847 An algebraic number of degree 12 and denominator 2. - _Charles R Greathouse IV_, Nov 05 2017 %H A019847 Ivan Panchenko, <a href="/A019847/b019847.txt">Table of n, a(n) for n = 0..1000</a> %H A019847 <a href="/index/Al#algebraic_12">Index entries for algebraic numbers, degree 12</a> %F A019847 Equals 2*A019828*A019880. - _R. J. Mathar_, Jan 17 2021 %e A019847 0.6156614... %t A019847 RealDigits[Sin[38 Degree],10,120][[1]] (* _Harvey P. Dale_, Dec 06 2020 *) %o A019847 (PARI) sin(19/90*Pi) \\ _Charles R Greathouse IV_, Nov 05 2017 %K A019847 nonn,cons %O A019847 0,1 %A A019847 _N. J. A. Sloane_